File names with spaces as arguments
I want to merge a bunch of PDF s. The file names have spaces : a 1.pdf, b 2.pdf, a 3.pdf. And they're a lot of them.
I tried this script:
merge $@
And called it with merge.sh *.pdf
The script got each separated character as an argument : a 1.pdf b 2.pdf a 3.pdf.
I there a way to feed these file names without having to enclose each in quotes?
https://redd.it/1gg0eh2
@r_bash
cat match string / move to end of file
i've been over a few different websites reading up on this, but I feel like I'm missing something stupid.
I have a file, which contains a mix of ipv4 and ipv6 addresses. I'd like to use sed to match all ipv6 addresses in the file, cut them from their current position, and move them to the end of the file.
I've tried a few ways to do this, including using cat to read in the file, then using sed to do the action. It seems to be finding the right lines, but I read online that /d should be delete, and I'm trying to just get that to work before I even try to append to the end of the file.
cat iplist.txt | sed -n "/::/d"
cat iplist.txt | sed -n "/::/d" >> iplist.txt
shellm: A one-file Ollama CLI client written in bash
https://github.com/Biont/shellm
https://redd.it/1gdp44f
@r_bash
Composite: +40.9°C ( MAX = +42.9°C )
Sensor 1: +40.9°C ( MAX = +42.9°C )
Sensor 2: +42.9°C ( MAX = +48.9°C )
----------------
nvme-pci-0200
----------------
Composite: +37.9°C ( MAX = +39.9°C )
----------------
Additional Temps
----------------
CPU HOT TEMP: +48.0°C ( CPU HOT MAX = +99.0°C )
GPU TEMP: +36.0°C ( GPU MAX = 39.0°C )
----------------
----------------
***
I hope some of you find this useful. Feel free to leave comments / questions / suggestions / bug reports.
https://redd.it/1gddbgq
@r_bash
What is it called when you ad an interface tu your terminal?
I apologize if this isn't the right sub but I do plan on using bash to do this. So I can use it across platforms. I'm trying to figure out what it's called, as I don't think shell is the proper term. And visor seems unrelated, Basically something with buttons for functions that sticks around at the top of terminals active area, active just meaning the space you can change the color of and nowhere outside it.
?
Thing is I don't want any input or output going underneath the buttons, which I want to use ANSI for. To me I would just called it an interface but that's way too vague, and it would be way too little to call a shell.
Like it would look similar to a HUD placed on you terminal, with active areas you could click with HID, any idea what this is called?
https://redd.it/1gd8pq1
@r_bash
bash: java: command not found
My Linux distro is Debian 12.7.0, 64bit, English.
I modified the guide titled [How to install Java JDK 21 or OpenJDK 21 on Debian 12](https://green.cloud/docs/how-to-install-java-jdk-21-or-openjdk-21-on-debian-12/) so that I could "install"/use the latest production-ready release of OpenJDK 23.0.1 (FYI Debian's official repos contain OpenJDK 17 which is outdated for my use.)
I clicked the link [https://download.java.net/java/GA/jdk23.0.1/c28985cbf10d4e648e4004050f8781aa/11/GPL/openjdk-23.0.1\_linux-x64\_bin.tar.gz](https://download.java.net/java/GA/jdk23.0.1/c28985cbf10d4e648e4004050f8781aa/11/GPL/openjdk-23.0.1_linux-x64_bin.tar.gz) to download the software to my computer.
Next I extracted the zipped file using the below command:
`tar xvf openjdk-23.0.1_linux-x64_bin.tar.gz`
A new directory was created on my device. It is called *jdk-23.0.1*
I copied said directory to `/usr/local`
`sudo cp -r jdk-23.0.1 /usr/local`
I created a new source script to set the Java environment by issuing the following command:
su -i
tee -a /etc/profile.d/jdk23.0.1.sh<<EOF
> export JAVA_HOME=/usr/local/jdk-23.0.1
> export PATH=$PATH:$JAVA_HOME/bin
> EOF
After having done the above, I opened [*jdk23.0.1.sh*](http://jdk23.0.1.sh) using FeatherPad and the contents showed the following:
export JAVA_HOME=/usr/local/jdk-23.0.1
export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/bin
Based on the guide, I typed the following command:
`source /etc/profile.d/jdk23.0.1.sh`
To check the OpenJDK version on my computer, I typed:
`java --version`
An error message appeared:
`bash: java: command not found`
Could someone show me what I did wrong please? Thanks.
https://redd.it/1gcjouf
@r_bash
Deployment, Bash, and Best Practices.
Hi guys, I have a few questions related to deployment process. While this might not be strictly about Bash, I’m currently using Bash for my deployment process, so I hope this is the right place to ask.
I’ve created a simple deployment script that copies files to a server and then connects to it to execute various commands remotely. Here’s the script I’m using:
```bash
#!/bin/bash
# Source the .env file to load environment variables
if [ -f ".env" ]; then
source .env
else
echo "Error: .env file not found."
exit 1
fi
# Check if the first argument is "true" or "false"
if [[ "$1" != "true" && "$1" != "false" ]]; then
printf "Usage: ./main_setup.sh [true|false]\n"
printf "\ttrue - Perform full server setup (install Nginx, set up authentication and systemd)\n"
printf "\tfalse - Skip server setup and only deploy the Rust application\n"
exit 1
fi
# Ensure required variables are loaded
if [[ -z "$SERVER_IP" || -z "$SERVER_USER" || -z "$BASIC_AUTH_USER" || -z "$BASIC_AUTH_PASSWORD" ]]; then
printf "Error: Deploy environment variables are not set correctly in the .env file.\n"
exit 1
fi
printf "Building the Rust app...\n"
cargo build --release --target x86_64-unknown-linux-gnu
# If the first argument is "true", perform full server setup
if [[ "$1" == "true" ]]; then
printf "Setting up the server...\n"
# Upload the configuration files
scp -i "$PATH_TO_SSH_KEY" nginx_config.conf "$SERVER_USER@$SERVER_IP:/tmp/nginx_config.conf"
scp -i "$PATH_TO_SSH_KEY" logrotate_nginx.conf "$SERVER_USER@$SERVER_IP:/tmp/logrotate_nginx.conf"
scp -i "$PATH_TO_SSH_KEY" logrotate_rust_app.conf "$SERVER_USER@$SERVER_IP:/tmp/logrotate_rust_app.conf"
scp -i "$PATH_TO_SSH_KEY" rust_app.service "$SERVER_USER@$SERVER_IP:/tmp/rust_app.service"
# Upload app files
scp -i "$PATH_TO_SSH_KEY" ../target/x86_64-unknown-linux-gnu/release/rust_app "$SERVER_USER@$SERVER_IP:/tmp/rust_app"
scp -i "$PATH_TO_SSH_KEY" ../.env "$SERVER_USER@$SERVER_IP:/tmp/.env"
# Connect to the server and execute commands remotely
ssh -i "$PATH_TO_SSH_KEY" "$SERVER_USER@$SERVER_IP" << EOF
# Update system and install necessary packages
sudo apt-get -y update
sudo apt -y install nginx apache2-utils
# Create password file for basic authentication
echo "$BASIC_AUTH_PASSWORD" | sudo htpasswd -ci /etc/nginx/.htpasswd $BASIC_AUTH_USER
# Copy configuration files with root ownership
sudo cp /tmp/nginx_config.conf /etc/nginx/sites-available/rust_app
sudo rm -f /etc/nginx/sites-enabled/rust_app
sudo ln -s /etc/nginx/sites-available/rust_app /etc/nginx/sites-enabled/
sudo cp /tmp/logrotate_nginx.conf /etc/logrotate.d/nginx
sudo cp /tmp/logrotate_rust_app.conf /etc/logrotate.d/rust_app
sudo cp /tmp/rust_app.service /etc/systemd/system/rust_app.service
# Copy the Rust app and .env file
mkdir -p /home/$SERVER_USER/rust_app_folder
mv /tmp/rust_app /home/$SERVER_USER/rust_app_folder/rust_app
mv /tmp/.env /home/$SERVER_USER/rust_app/.env
# Clean up temporary files
sudo rm -f /tmp/nginx_config.conf /tmp/logrotate_nginx.conf /tmp/logrotate_rust_app.conf /tmp/rust_app.service
# Enable and start the services
sudo systemctl daemon-reload
sudo systemctl enable nginx
sudo systemctl start nginx
sudo systemctl enable rust_app
sudo systemctl start rust_app
# Add the crontab task
sudo mkdir -p /var/log/rust_app/crontab/log
(sudo crontab -l 2>/dev/null | grep -q "/usr/bin/curl -X POST http://localhost/rust_app/full_job" || (sudo crontab -l 2>/dev/null; echo "00 21 * * * /usr/bin/curl -X POST http://localhost/rust_app/full_job >> /var/log/rust_app/crontab/\\\$(date +\\%Y-\\%m-\\%d).log 2>&1") | sudo crontab -)
EOF
else
# Only deploy the Rust application
scp -i "$PATH_TO_SSH_KEY"
How a Non-Interactive Shell Have Access to Its Parent Interactive Shell?
Hi. I'm just curious what things a script that is launched from an interactive shell has access to about the interactive shell? can it see what options are enabled in the shell? does the non interactive shell even know it was launched from an interactive shell? or is it like a sandbox? Idk if I'm converying what I mean.
https://redd.it/1gaojfj
@r_bash
I don't know bash. I need a script to find big folders
*bigger than 100MB. Then, move them to /drive/.links/ and create a link from the old folder to the new one.
https://redd.it/1g96wgf
@r_bash
✨ What Terminal Features Would You Love? Check Out My Project and Share Your Ideas! ✨
Hey everyone!
I'm curious—**what features do you wish you could integrate into your terminal** to make your workflow smoother or more enjoyable?
I'm currently developing a project called [**HomeSetup**](https://github.com/yorevs/homesetup) project aimed at enhancing and customizing terminal environments for developers. Whether it's advanced theming, plugin support, automation tools, or anything else, I'd love your suggestions!
I have already integrated the following:
* [**Starship**](https://starship.rs/)**:** Elevate your terminal experience with this highly customizable prompt.
* [**ColorLS**](https://github.com/athityakumar/colorls)**:** Add colorized and feature-rich directory listings for improved readability.
* [**FZF**](https://www.redhat.com/sysadmin/fzf-linux-fuzzy-finder)**:** Enjoy the power of fuzzy search for rapid navigation and command-line operations.
* [**GTrash**](https://github.com/umlx5h/gtrash)**:** Manage file deletion effortlessly with this trash-cli alternative.
* [**NeoVim**](https://neovim.io/)**:** A hyper-extensible, modern rewrite of Vim, offering improved performance and enhanced plugins for developers and power users.
* [**Sdiff**](https://man7.org/linux/man-pages/man1/sdiff.1.html) **+** [**Colordiff**](https://www.colordiff.org/)**:** Compare and colorize file differences directly in your terminal, providing an intuitive way to track changes between files.
🔍 **Check out the project's README here:** [HomeSetup README](https://github.com/yorevs/homesetup/blob/master/README.md)
Your feedback can help shape the next features of HomeSetup! Feel free to:
* Share the features you find essential for your terminal setup
* Suggest new ideas or improvements
* Ask any questions you might have about the project
Let's build a powerful and flexible terminal environment together! 🚀
Thanks for your support!
*Feel free to upvote and share if you're excited about enhancing terminal experiences!*
https://redd.it/1g9q9g0
@r_bash
code,I tried to study it and I found the point where it produces an error,that unfortunately I'm not able to fix...this is the line :
root@marietto:/# SYSTEMD_PID="$(ps -eo pid=,args= | awk '$2" "$3=="'"$SYSTEMD_EXE"'" {print $1}')"
fatal library error, reaproot@marietto:/# SYSTEMD_PID="$(ps -eo pid=,args= | awk '$2" "$3=="'"$SYSTEMD_EXE"'" {print $1}')"
fatal library error, reap
I know for sure that the variable $SYSTEMD\_EXE is set :
root@marietto:/# echo $SYSTEMD_EXE
/lib/systemd/systemd --unit=basic.targetroot@marietto:/# echo $SYSTEMD_EXE
/lib/systemd/systemd --unit=basic.target
I suspect the error is produced by the ps or awk command. Code of the script :
#!/usr/local/bin/bash
SYSTEMD_EXE="/lib/systemd/systemd --unit=basic.target"
SYSTEMD_PID="$(ps -eo pid=,args= | awk '$2" "$3=="'"$SYSTEMD_EXE"'" {print $1}')"
if [ "$LOGNAME" != "root" ] && ( [ -z "$SYSTEMD_PID" ] || [ "$SYSTEMD_PID" != "1" ] ); then
export | sed -e 's/^declare -x //;/^IFS=".*[^"]$/{N;s/\n//}' | \
grep -E -v "^(BASH|BASH_ENV|DIRSTACK|EUID|GROUPS|HOME|HOSTNAME|\
IFS|LANG|LOGNAME|MACHTYPE|MAIL|NAME|OLDPWD|OPTERR|\
OSTYPE|PATH|PIPESTATUS|POSIXLY_CORRECT|PPID|PS1|PS4|\
SHELL|SHELLOPTS|SHLVL|SYSTEMD_PID|UID|USER|_)(=|\$)" > "$HOME/.systemd-env"
export PRE_NAMESPACE_PATH="$PATH"
export PRE_NAMESPACE_PWD="$(pwd)"
exec sudo /usr/sbin/enter-systemd-namespace "$BASH_EXECUTION_STRING"
fi
if [ -n "$PRE_NAMESPACE_PATH" ]; then
export PATH="$PRE_NAMESPACE_PATH"
unset PRE_NAMESPACE_PATH
fi
if [ -n "$PRE_NAMESPACE_PWD" ]; then
cd "$PRE_NAMESPACE_PWD"
unset PRE_NAMESPACE_PWD
fi
This is the github of the project :
[https://github.com/DamionGans/ubuntu-wsl2-systemd-script/tree/master](https://github.com/DamionGans/ubuntu-wsl2-systemd-script/tree/master)
https://redd.it/1g9k9ew
@r_bash
Fatal library error, reap ERROR while trying to demonize systemd inside Ubuntu installed with the Linuxulator.
Hello.
I'm trying to install Ubuntu 24.04 inside the FreeBSD Linuxulator. Something is changed on the 24.04 because,I was able to install the 23.10 even if I got the systemd error,but with the 24.04 the installation stucks totally and it doesn't let to install anything else if the error is not fixed somehow...
57 upgraded, 62 newly installed, 43 to remove and 756 not upgraded.
100 not fully installed or removed.
Need to get 0 B/51.8 MB of archives.
After this operation, 84.9 MB of additional disk space will be used.
Do you want to continue? Y/n y
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LCALL = (unset),
LCCOLLATE = "C",
LANG = "itIT.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
locale: Cannot set LCCTYPE to default locale:
No such file or directory
locale: Cannot set LCMESSAGES to default locale:
No such file or directory
locale: Cannot set LCALL to default locale:
No such file or directory
Extracting templates from packages: 100%
Preconfiguring packages ...
Setting up systemd (255.4-1ubuntu8.4) ...
/proc/ is not mounted, but required for successful operation of
systemd-tmpfiles. Please mount /proc/.
Alternatively, consider using the --root= or --image= switches.
Failed to take /etc/passwd lock: Invalid argument
dpkg: error processing package systemd (--configure):
installed systemd package post-installation script subprocess
returned error exit status 1
Errors were encountered while processing:
systemd57 upgraded, 62 newly installed, 43 to remove and 756 not upgraded.
100 not fully installed or removed.
Need to get 0 B/51.8 MB of archives.
After this operation, 84.9 MB of additional disk space will be used.
Do you want to continue? Y/n y
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LCALL = (unset),
LCCOLLATE = "C",
LANG = "itIT.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
locale: Cannot set LCCTYPE to default locale:
No such file or directory
locale: Cannot set LCMESSAGES to default locale:
No such file or directory
locale: Cannot set LCALL to default locale:
No such file or directory
Extracting templates from packages: 100%
Preconfiguring packages ...
Setting up systemd (255.4-1ubuntu8.4) ...
/proc/ is not mounted, but required for successful operation of
systemd-tmpfiles. Please mount /proc/.
Alternatively, consider using the --root= or --image= switches.
Failed to take /etc/passwd lock: Invalid argument
dpkg: error processing package systemd (--configure):
installed systemd package post-installation script subprocess
returned error exit status 1
Errors were encountered while processing:
systemd
I realized that ubuntu 23.10 does not have this kind of problem. I can install everything even if it complains that systemd is not installed. Starting with ubuntu 24.04 something is changed inside the code. Now if it is not able to install systemd,it will not continue letting you install anything else.
I found this interesting hack :
https://github.com/DamionGans/ubuntu-wsl2-systemd-script/tree/master
the code is easy to understand /for users who have some knowledge of shell scripting/ ; not me. At least mine is low,but not null. The script try to "demonize" systemd and it worked when I played with WSL a lot of years ago. I've thought,why not try it with Ubuntu installed within the Linuxulator ? with some little modifications it could work. I've analyzed the source
Matrix like animation for every time you start the terminal.(beta)
#!/bin/bash
sleep 0.01
[ $LINES ] || LINES=$(tput lines)
[ $COLUMNS ] || COLUMNS=$(tput cols)
a=0
tput civis
for (( i=0; i<$LINES; i++ ))
do
clear
if $i -gt 0
then
n=$(($i-1))
eval printf "$'\n%.0s'" {0..$n}
fi
if $a == 0
then
eval printf %.1s '$((RANDOM & 1))'{1..$COLUMNS} | sed -r 's/0/ /g'
a=1
elif $a == 1
then
eval printf %.1s '$((RANDOM & 1))'{1..$COLUMNS} | sed -r 's/1/ /g'
a=0
fi
if $i -lt $((LINES-1))
then
eval printf %.1s '$((RANDOM & 1))'{1..$COLUMNS}
fi
if $a == 1 -a $i -lt $(($LINES-2))
then
eval printf %.1s '$((RANDOM & 1))'{1..$COLUMNS} | sed -r 's/1/ /g'
a=1
elif $a == 0 -a $i -lt $(($LINES-2))
then
eval printf %.1s '$((RANDOM & 1))'{1..$COLUMNS} | sed -r 's/0/ /g'
a=0
fi
sleep 0.01
done
clear
tput cnorm
https://redd.it/1g792lw
@r_bash
Are These Good Approaches to use?
So I have These two Scripts That I created Mainly when I'm in my Thinking Room (Bathroom) Both of them works, but any recommendations are welcomed
First One is a Command to toggle Redshift Eyes Protector
#!/bin/bash
stat="redshiftstat.txt"
test -f /tmp/$stat
errorcode=$?
if [ $error_code != 0 ]; then
redshift -O 4200
touch /tmp/$stat
echo "night protection is on" >> /tmp/$stat
elif [ $error_code = 0 ]; then
redshift -x
rm /tmp/$stat
fi
Second is Rofi script Launcher:
#!/bin/bash
s=""
night="Run Night Mode"
items=$night$s"b"
command=$(echo $items | rofi -sep '' -dmenu)
if [ $command = $night ]; then
./night.sh
else
echo "no command to apply"
fi
https://redd.it/1g8l2gz
@r_bash
Issue in conversation using ghostscrript Help
Hi all, in my application, I am using Ghostscript to convert RGB to CMYK in a PDF. The conversion works, but I can't control the CMYK values from the RGB input. For example, the expected black CMYK value is 0/0/0/100, but the actual values are different. Does anyone have an idea on how to control this from HTML, or know of any plugin that can control the CMYK values? Alternatively, is there a way to control Ghostscript directly
https://redd.it/1g84l8h
@r_bash
M3U file list
I know I can create a file list with ls -1 > filename.txt, but I don't know how to prepend the directory path. I'm trying to create an m3u file list I can transfer to Musicolet on my phone. Can someone point me in the right direction?
https://redd.it/1gfk5jr
@r_bash
Confirming speed / bash practices
Long story short, I have a CSV file, 5 fields.
I read it into bash, and used IFS / while loop to read through the delimiters.
I'd say the CSV file in total is roughly 40MB. Pretty large for a CSV.
I went back and just decided to add a condition to check if the folder existed, because each row can be placed in different folders depending on the category.
When I added that check along with mkdir, I noticed that the speed dramatically went to hell. Without mkdir, the file completed in about 2 minutes. When I add mkdir -p, the speed to run the file went above 30 minutes, and then I just killed the script because it wasn't worth waiting anymore.
Is mkdir that heavy in a while loop? Or is their a better way to do this to ensure the sub-folders are created. Obviously I can't do what I was doing, because that just tanked the speed.
Just to give an idea, all I did was:
if test ! -d ${CAT}; then
mkdir -p ${CAT}
fi
test or mkdir, and if there's a much faster set of commands when working inside a loop, or should I try to do as much as possible outside the loop and do the bare minimum inside.tr just to manipulate a string, and that also did it.
Two values separated by control character
I have a file from a program which I need to parse. The contents is simple, but the control character in the middle is really throwing me off
01 Brad
05 Dan
12 Tim
for line in $(cat list.txt); do
done
for line in $(cat list.txt); do
mkdir -p ${leftValue}
touch ${rightValue}
done
\009, \u0009, etc. Even trying [:alnum:] just to do something simple like replace the control character with a | pipe. Just to get some type of result.
sensors_t: a simple bash function for monitoring the temperature of various system components with sensors
[LINK TO THE CODE ON GITHUB](https://github.com/jkool702/misc-public-scripts/blob/main/sensors_t.bash)
`sensors_t` is a fairly short and simple bash function that makes it easy to monitor temperatures for your CPU and other various system components using `sensors` (from the `lm_sensors` package).
***
###FEATURES
`sensors_t` is not *drastically* different than a simple infinite loop that repeatedly calls `sensors; sleep 1`, but `sensors_t` does a few extra things:
1. `sensors_t` "cleans up" the output from `sensors` a bit, distilling it down to the sensor group name and the actual sensor outputs that report a temperature or a fan/pump RPM speed.
2. for each temperature reported, `sensors_t` keeps track of the maximum temperature seen since it started running, and adds this info to the end of the line in the displayed `sensors` output.
3. `sensors_t` attempts to identify which temperatures are from the CPU (package or individual coreS), and adds a line showing the single hottest temperature from the CPU.^(1)
4. if you have a nvidia GPU and have `nvidia-smi` available, `sensors_t` will ue it to get the GPU temp and adds a line displaying it.^(2)
NOTE: the only systems I have available to test `sensors_t` use older (pre-p/e-core) intel CPU's and nvidia GPU's.
^(1)This (identifying which sensors are from the CPU) assumes that [only] these lines all begin with either "Core" or "Package". This assumption may not be true for all CPU's, meaning the "hottest core temp" line may not work on some CPU's. If it doesnt work and you leave your CPU name and the output from calling `sensors` I'll try to add in support for that CPU.
^(2)If someone with an AMD or intel GPU can provide a 1-liner to get the GPU temp, i'll try to incorporate it and add in support for non-nvidia GPU's too.
***
###USAGE
Usage is very simple: source the `sensors_t.bash` script, then run
sensors_t [N] [CHIP(S)]
`N` is an optional input to change the waiting period between updates (default is 1 second). If provided it must be the 1st argument.
`CHIP(S)` are optional inputs to limit which sensor chips have their data displayed (default is to omit this and display all sensors temp data). To see possible values for `CHIP(S)`, first run `sensors_t` without this parameter.
# example invocations
sensors_t # 1 second updates, all sensors
sensors_t 5 # 5 second updates, all sensors
sensors_t coretemp-isa-0000 # 1 second updates, only CPU temp sensors
***
###EXAMPLE OUTPUT PAGE
___________________________________________
___________________________________________
Monitor has been running for: 173 seconds
-------------------------------------------
----------------
coretemp-isa-0000
----------------
Package id 0: +46.0°C ( MAX = +98.0°C )
Core 0: +46.0°C ( MAX = +81.0°C )
Core 1: +46.0°C ( MAX = +88.0°C )
Core 2: +48.0°C ( MAX = +87.0°C )
Core 3: +45.0°C ( MAX = +98.0°C )
Core 4: +43.0°C ( MAX = +91.0°C )
Core 5: +45.0°C ( MAX = +99.0°C )
Core 6: +45.0°C ( MAX = +82.0°C )
Core 8: +44.0°C ( MAX = +84.0°C )
Core 9: +43.0°C ( MAX = +90.0°C )
Core 10: +43.0°C ( MAX = +93.0°C )
Core 11: +44.0°C ( MAX = +80.0°C )
Core 12: +43.0°C ( MAX = +93.0°C )
Core 13: +46.0°C ( MAX = +79.0°C )
Core 14: +44.0°C ( MAX = +81.0°C )
----------------
kraken2-hid-3-1
----------------
Fan: 0 RPM
Pump: 2826 RPM
Coolant: +45.1°C ( MAX = +45.4°C )
----------------
nvme-pci-0c00
----------------
Composite: +42.9°C ( MAX = +46.9°C )
----------------
enp10s0-pci-0a00
----------------
MAC Temperature: +53.9°C ( MAX = +59.3°C )
----------------
nvme-pci-b300
----------------
Would you consider these silly aliases?
alias vi="test -f ./.vim/viminfo.vim && VIMINFO=./.vim/viminfo.vim || VIMINFO=~/.viminfo; vim -i \$VIMINFO"
alias make='vim Makefile && make'
The first one is so that I don't have my registers for prose-writing available whenever I'm doing Python stuff, and vice versa.
The second one is basically akin to git commit.
https://redd.it/1gczyt4
@r_bash
../target/x86_64-unknown-linux-gnu/release/rust_app "$SERVER_USER@$SERVER_IP:/tmp/rust_app"
scp -i "$PATH_TO_SSH_KEY" ../.env "$SERVER_USER@$SERVER_IP:/tmp/.env"
ssh -i "$PATH_TO_SSH_KEY" "$SERVER_USER@$SERVER_IP" << EOF
mv /tmp/rust-app /home/$SERVER_USER/rust_app_folder/rust_app
mv /tmp/.env /home/$SERVER_USER/rust_app_folder/.env
sudo systemctl restart rust_app
EOF
fi
```
So the first question is using Bash for deployment a good practice? I’m wondering if it's best practice to do it or should I be using something more specialized, like Ansible or Jenkins?
The second question is related to Bash. When executing multiple commands on a remote server using an EOF block, the commands often appear as plain text in editors like Vim, without proper syntax highlighting or formatting. Is there a more elegant way to manage this? For example, could I define a function locally that contains all the commands, evaluate certain variables (such as $SERVER_USER) beforehand, and then send the complete function to the remote server for execution? Alternatively, is there a way to print the evaluated function and pass it to an EOF block as a sequence of commands, similar to how it's done now?
Thanks!
https://redd.it/1gbaanm
@r_bash
Read from standard input
Quick question: in a script, how to read from standard input and store into string variable or array if first argument to a script is a -? The script also takes other arguments, in which case it shouldn't read from standard input.
https://redd.it/1gawaq4
@r_bash
I prerer eza rather than ls
Eza (fork of exa) https://github.com/eza-community/eza is similar to ls but with color output and fancy Unicode icons for file type and few other improvements. However if you make alias ls=eza --icons it may not work all the time, because it is missing -Z for SELinux or put icons to output. But it is quite easy to fix in my ~/.bashrc:
function ls() {
if [[ $* == *-Z* ]] ; then
/usr/bin/ls $*
fi
if [ -t 1 ] ; then
# Output to TTY
eza --icons $*
else
/usr/bin/ls $*
fi
}
ls, or if output is not TTY (else-block for -t) it will use /usr/bin/ls instead (if I will use just ls the new function will recursivelly call itself :).
Bash, count IPs in subnet / range
I've been all over Google. Maybe I'm typing the wrong words.
I'm trying to look at a method to extract the number of IP addresses by simply providing a range.
`25.25.25.25/\`\`17` would return `32768`
I found a few older bash scripts from back in 2013, but one did not return the correct results, and it was a massive script. I don't know enough about IPv4 addresses to attempt this on my own.
Just looking for a template or a direction to go in.
A vanilla solution would be nice, where no extra packages need to be installed, but if it absolutely must be a package, then I can live with that. Pretty sure I can install whatever package I need.
I found ipcalc, which makes it easy, but I'd need a way to extract just the value
```
$ ipcalc 10.10.10.10/32
Address: 10.10.10.10 00001010.00001010.00001010.00001010
Netmask: 255.255.255.255 = 32 11111111.11111111.11111111.11111111
Wildcard: 0.0.0.0 00000000.00000000.00000000.00000000
=>
Hostroute: 10.10.10.10 00001010.00001010.00001010.00001010
Hosts/Net: 1 Class A, Private Internet
```
```
$ ipcalc 10.10.10.10/17
Address: 10.10.10.10 00001010.00001010.0 0001010.00001010
Netmask: 255.255.128.0 = 17 11111111.11111111.1 0000000.00000000
Wildcard: 0.0.127.255 00000000.00000000.0 1111111.11111111
=>
Network: 10.10.0.0/17 00001010.00001010.0 0000000.00000000
HostMin: 10.10.0.1 00001010.00001010.0 0000000.00000001
HostMax: 10.10.127.254 00001010.00001010.0 1111111.11111110
Broadcast: 10.10.127.255 00001010.00001010.0 1111111.11111111
Hosts/Net: 32766 Class A, Private Internet
```
Using
```
ipcalc 10.10.10.10/32 | grep "Hosts/Net"
```
Allows me to narrow it down, but there's still text aside from just the number:
```
$ ipcalc 10.10.10.10/32 | grep "Hosts/Net"
Hosts/Net: 1 Class A, Private Internet
```
https://redd.it/1g9yl0t
@r_bash
Help Needed: Script Not Launching Firefox Properly from st in Floating Mode
I’m having some trouble with a Bash script that I’m trying to run in a floating `st` terminal in my dwm setup. The script is designed to open bookmarks from a qutebrowser quickmarks file using `fzf` and then launch the selected bookmark in Firefox Developer Edition. However, it doesn't seem to work correctly when invoked from `st` in floating mode, if the script is used in normal terminal it works as expected. I just assume theres something wrong with the "-e" flag, I would really appreciate a help.
This is the script
!/usr/bin/env bash
bookmark_file="$HOME/.config/qutebrowser/quickmarks"
selected=$(bat "$bookmark_file" | fzf)
url=$(echo "$selected" | cut -d' ' -f2)
if [ -n "$url" ]; then
firefox-developer-edition "$url" &
fi
This is my respective dwm config lines
static const Rule rules[] = {
{ "floatingst", NULL, NULL, 0, 1, -1 },
};
static const char *st2[] = { "st", "-c", "floatingst", "-e", "/path/to/Script.sh", NULL };
static const Key keys[] = {
{ MODKEY, XK_m, spawn, {.v = st2 } },
};
https://redd.it/1g9ndmk
@r_bash
Fatal library error, reap ERROR while trying to demonize systemd inside Ubuntu installed with the Linuxulator.
Hello.
I'm trying to install Ubuntu 24.04 inside the FreeBSD Linuxulator. Something is changed on the 24.04 because,I was able to install the 23.10 even if I got the systemd error,but with the 24.04 the installation stucks totally and it doesn't let to install anything else if the error is not fixed somehow...
57 upgraded, 62 newly installed, 43 to remove and 756 not upgraded.
100 not fully installed or removed.
Need to get 0 B/51.8 MB of archives.
After this operation, 84.9 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LC_COLLATE = "C",
LANG = "it_IT.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
locale: Cannot set LC_CTYPE to default locale:
No such file or directory
locale: Cannot set LC_MESSAGES to default locale:
No such file or directory
locale: Cannot set LC_ALL to default locale:
No such file or directory
Extracting templates from packages: 100%
Preconfiguring packages ...
Setting up systemd (255.4-1ubuntu8.4) ...
/proc/ is not mounted, but required for successful operation of
systemd-tmpfiles. Please mount /proc/.
Alternatively, consider using the --root= or --image= switches.
Failed to take /etc/passwd lock: Invalid argument
dpkg: error processing package systemd (--configure):
installed systemd package post-installation script subprocess
returned error exit status 1
Errors were encountered while processing:
systemd57 upgraded, 62 newly installed, 43 to remove and 756 not upgraded.
100 not fully installed or removed.
Need to get 0 B/51.8 MB of archives.
After this operation, 84.9 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LC_COLLATE = "C",
LANG = "it_IT.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
locale: Cannot set LC_CTYPE to default locale:
No such file or directory
locale: Cannot set LC_MESSAGES to default locale:
No such file or directory
locale: Cannot set LC_ALL to default locale:
No such file or directory
Extracting templates from packages: 100%
Preconfiguring packages ...
Setting up systemd (255.4-1ubuntu8.4) ...
/proc/ is not mounted, but required for successful operation of
systemd-tmpfiles. Please mount /proc/.
Alternatively, consider using the --root= or --image= switches.
Failed to take /etc/passwd lock: Invalid argument
dpkg: error processing package systemd (--configure):
installed systemd package post-installation script subprocess
returned error exit status 1
Errors were encountered while processing:
systemd
I realized that ubuntu 23.10 does not have this kind of problem. I can install everything even if it complains that systemd is not installed. Starting with ubuntu 24.04 something is changed inside the code. Now if it is not able to install systemd,it will not continue letting you install anything else.
I found this interesting hack :
[https://github.com/DamionGans/ubuntu-wsl2-systemd-script/tree/master](https://github.com/DamionGans/ubuntu-wsl2-systemd-script/tree/master)
the code is easy to understand /for users who have some knowledge of shell scripting/ ; not me. At least mine is low,but not null. The script try to "demonize" systemd and it worked when I played with WSL a lot of years ago. I've thought,why not try it with Ubuntu installed within the Linuxulator ? with some little modifications it could work. I've analyzed the source
Script for SSH'ing to a switch then....
.... Performing commands in Telnet.
The story is: My AVR won't accept telnet commands after it's been connected to the same IP address for a while. I would like to run a script every night when the receiver is off to shut the switch port off.
I have to SSH the switch then run:
telnet localhost
en
conf
interface 0/4
And one of two commands:
shut (turn off port at 1:01am)
no shut (turn on port at 6:30)
I am guessing an expect script is going to be the best way to do this on the machine (not the switch because I can't install expect).
Is this the proper approach?
https://redd.it/1g6m020
@r_bash
How do I log lm-sensors CPU and GPU temp to file during stress test?
I'm looking to stress test a laptop running Linux Mint which has lm-sensors installed. I want to write the CPU and GPU temp to a file, and tried this solution which only appeared to output the UNIX timestamp on a single line; no temp data, and no newline-for-each-timestamp. Example:
Time; temp1; temp2; Physical id 0; Core 0; Core 1; Core 2; Core 3; SIO Temp; temp3
1729536016; 1729536018; 1729536020; 1729536022; 1729536024;
$ sensors output in terminal, for reference:iwlwifi_1-virtual-0
Adapter: Virtual device
temp1: +49.0°C
pch_cannonlake-virtual-0
Adapter: Virtual device
temp1: +66.0°C
ucsi_source_psy_USBC000:001-isa-0000
Adapter: ISA adapter
in0: 35.20 V (min = +35.20 V, max = +0.00 V)
curr1: 3.00 A (max = +0.00 A)
BAT0-acpi-0
Adapter: ACPI interface
in0: 16.47 V
coretemp-isa-0000
Adapter: ISA adapter
Package id 0: +56.0°C (high = +100.0°C, crit = +100.0°C)
Core 0: +48.0°C (high = +100.0°C, crit = +100.0°C)
Core 1: +49.0°C (high = +100.0°C, crit = +100.0°C)
Core 2: +56.0°C (high = +100.0°C, crit = +100.0°C)
Core 3: +47.0°C (high = +100.0°C, crit = +100.0°C)
Core 4: +51.0°C (high = +100.0°C, crit = +100.0°C)
Core 5: +48.0°C (high = +100.0°C, crit = +100.0°C)
thinkpad-isa-0000
Adapter: ISA adapter
fan1: 2485 RPM
fan2: 2158 RPM
CPU: +49.0°C
GPU: +45.0°C
temp3: +0.0°C
temp4: +0.0°C
temp5: +0.0°C
temp6: +0.0°C
temp7: +0.0°C
temp8: +0.0°C
ucsi_source_psy_USBC000:002-isa-0000
Adapter: ISA adapter
in0: 0.00 V (min = +0.00 V, max = +0.00 V)
curr1: 0.00 A (max = +0.00 A)
nvme-pci-7100
Adapter: PCI adapter
Composite: +41.9°C (low = -273.1°C, high = +81.8°C)
(crit = +84.8°C)
Sensor 1: +41.9°C (low = -273.1°C, high = +65261.8°C)
Sensor 2: +46.9°C (low = -273.1°C, high = +65261.8°C)
acpitz-acpi-0
Adapter: ACPI interface
temp1: +49.0°C (crit = +128.0°C)
generate animated pseudo random glitch SVG from ASCII characters
https://redd.it/1g874ji
@r_bash
random wallhaven wallpaper setting
i just needed a little way to grab a random wallpaper and be able to set it and save it if i want to as my wallpaper.
it's very simple lol, but it's what i needed.
https://github.com/getjared/bash/tree/main/wc
https://redd.it/1g7jfta
@r_bash