Remove function issue Wireguard Server config
Hello all,
Not sure if this is the proper place for this but I am having an issue with a bash script I am trying to write on my Raspberry Pi. The purpose of the script is to be a fully automated Wireguard Server Manager. Upon defining the Home LAN subnet, WG Server IP, Wireguard port, and DNS IP. Your then shown a menu of 8 options. 1.) Add Client 2.) Remove Client 3.) List Clients 4.) Edit Configuration 5.) Display Server wg0.conf 6.) Clean up wg0 file 7.) Display QR code for client 8.) Clean up Orphaned Client Config.
I am having an issue with my option 2.) Remove Client. When I select option 2 to remove a selected client. It removes the client config file which is want I it to do. I also when selected option 2 I want it to remove the associated peer in the wg0.conf file but in the wg0.conf file it removes all of my peers. I for the life of me am struggling to figure out how to resolve this and its driving me nuts. So I am asking for help if it can be provided. I will paste my script below for reference.
#!/bin/bash # Unified logging function: Use log for all messages. # Log levels: # INFO - Informational messages # DEBUG - Debugging messages (enabled when DEBUG_MODE=true) # ERROR - Error messages (logged to stderr) set -e log() { local level="$1" local message="$2" local timestamp timestamp=$(date +"%Y-%m-%d %H:%M:%S") # Print directly to stdout/stderr case "$level" in INFO) echo -e "[${timestamp}] [INFO] $message" ;; DEBUG) if [[ "${DEBUG_MODE}" == true ]]; then echo -e "[${timestamp}] [DEBUG] $message" fi ;; ERROR) echo -e "[${timestamp}] [ERROR] $message" >&2 ;; *) echo -e "[${timestamp}] [UNKNOWN] $message" >&2 ;; esac } # Restrict file permissions for sensitive files umask 077 # Centralized Configuration and Defaults declare -A DEFAULTS=( ["dns"]="10.6.0.7" # Default DNS server (Pi-hole) ["port"]=51642 # Default WireGuard server port ["endpoint"]="testmachinevm.ddns.net" # Default endpoint address ["conf_dir"]="/etc/wireguard" # WireGuard configuration directory ["log_file"]="/var/log/wireguard_install.log" # WireGuard log file ) # Derived Paths DEFAULTS["device_config_dir"]="${DEFAULTS["conf_dir"]}/deviceconfigs" DEFAULTS["wg_conf_file"]="${DEFAULTS["conf_dir"]}/wg0.conf" # Enable Debug Mode (default is off; set DEBUG_MODE=true to enable detailed logs) DEBUG_MODE=${DEBUG_MODE:-false} # Function to log sensitive messages securely secure_log() { local MESSAGE="$1" logger -p authpriv.info "WireGuard Management: ${MESSAGE}" } # Function to conditionally log debug messages debug_log() { if [[ "${DEBUG_MODE}" == true ]]; then echo "DEBUG: $1" else secure_log "$1" fi } # Function to check for required dependencies check_dependencies() { local DEPENDENCIES=("micro" "qrencode" "fbi" "wg" "systemctl" "ss") local MISSING_DEPS=() local DEP_STATUS=() log INFO "Checking dependencies..." # Check dependencies in parallel for TOOL in "${DEPENDENCIES[@]}"; do { if ! command -v "$TOOL" &>/dev/null; then DEP_STATUS+=("$TOOL") fi } & done # Wait for all background checks to complete wait # Handle missing dependencies if [[ ${#DEP_STATUS[@]} -ne 0 ]]; then log ERROR "Missing dependencies: ${DEP_STATUS[*]}" log ERROR "Install missing dependencies and retry." exit 1 fi log INFO "All dependencies are installed." } # Call dependency check at the start of the script check_dependencies # Centralized configuration WG_CONF_DIR="${DEFAULTS["conf_dir"]}" WG_CONF_FILE="${DEFAULTS["wg_conf_file"]}" DEVICE_CONFIG_DIR="${DEFAULTS["device_config_dir"]}" DEFAULT_DNS="${DEFAULTS["dns"]}" DEFAULT_ENDPOINT="testmachinevm.ddns.net" DEFAULT_PORT=51642 # Default WireGuard port LOG_FILE="${DEFAULTS["log_file"]}" echo "DEBUG: LOG_FILE is set to '${LOG_FILE}'" #Validate Input validate() { local value="$1" local type="$2" local error_message="$3" case "$type" in ip) if ! [[ "$value" =~ ^([0-9]{1,3}\.){3}[0-9]{1,3}(/([0-9]|[1-2][0-9]|3[0-2]))?$ ]]; then echo "Error: ${error_message:-Invalid IP address format. Use CIDR notation (e.g., 10.100.0.1/24).}" return 1 fi ;; dns) if ! [[ "$value" =~
Environment variables in subshell
I have been trying to understand how env command works and have a question.
Is there any difference betweenvar=value somecommand
andenv var=value somecommand?
These both set the variable var for subshells and will not retain its value after somecommand finishes.
Can someone help me understand when and why env is useful. Thank you!
https://redd.it/1h9ha6s
@r_bash
Append multiline at the begin
I have multiple lines from a grep command,. I put this lines in a variable. Ho can i append this lines at the begin of a file? I tried with sed but It don't work, i don't know because a multi lines.
Someone can help me please
https://redd.it/1h8fogz
@r_bash
Exports block prev exports
I'm using zshell and my config exports are like that. But when i want to use lazygit or openvpn etc. it says '...not included path.' I add it with export or via config file but then I can't even use ls. Say's I have to add it to path It's in the path on .zshrc. Couldn't find solution pls help. Everything works fine in root terminal but it's not suitable i guess.
https://preview.redd.it/8qtx9l58495e1.png?width=817&format=png&auto=webp&s=3a0a8e4e448a86ccb451d407ffa769b21adbff99
https://preview.redd.it/cxqmojw0495e1.png?width=1346&format=png&auto=webp&s=5142078c29552f2707520a69cc505162c51d1983
https://redd.it/1h8576v
@r_bash
Error Handling in Bash: 5 Essential Methods with Examples
https://jsdev.space/error-handling-bash/
https://redd.it/1h7xvee
@r_bash
Need help passing argument with alias
Hi,
I want to make an alias with the word cheat. Ex. cheat topic
I tried making an alias but can't get it right. I presume because there is whitespace between the command and the argument.
alias cheat="curl cht.sh/$1"
How can I make this alias work so when I type cheat zip, and make curl cht.sh.zip the result?
Thanks.
https://redd.it/1h7p3vn
@r_bash
Debug bash prompt
I have this in my .bashrc file for the terminal prompt and it works fine but when cursor moves beyond half of the terminal width then it messes with the text on screen. The cursor does not go beyond that point instead moves to the start of the line.
# Colours
foregroundcolor='\033[0;1;36m'
commandforeground='\0330m'
background_color_black='\033[30m'
background_color_cyan='\033[46m'
# Prompt components
info="${foreground_color}${background_color_black}${background_color_cyan}\A${foreground_color} ${foreground_color}${background_color_black}${background_color_cyan}\d${foreground_color}"
align_right='\033[$(($COLUMNS-20))C'
start='\033[1G'
prompt="${foreground_color}--> ${command_foreground}"
# Prompt string
PS1="${align_right}${info}${start}${prompt}"
https://i.redd.it/w5gzsfrzhu4e1.gif
[https://redd.it/1h6hvuw
@r_bash
I made a bash script to exclude dropbox sync directories via command line
I code a lot in my dropbox folder to keep them synced across my devices (before git commits are viable) and unfortunately dropbox does not include an automatic way to exclude syncs. Took a while but with some guidance from claude 3.5 I hacked this together.
https://github.com/kavehtehrani/dropbox-exclude
https://redd.it/1h716kg
@r_bash
Move files from all subfolders to root folder but new filename should contain the folders
Hello,
i have a lot of folders containing files and more sobfolders with files. I want to have all that files in the root folder and the filename should contain the folder name. For example the file /testdir1/testdir2/testfile,txt should be in /testdir1_-_testdir2_-_testfile.txt
The thing is, some years ago i had done this by accident (i think i tried just to remove bad characters from filename but by accident also replaces the / but i can't get it together again :-( )
https://redd.it/1h5mrsi
@r_bash
Advent of Code 2024 - Day 1 Problem 1 Solution in Bash
Hi, I have been learning Bash the last two days as my first scripting language. I saw the advent of code started this year, and I thought why not try to solve it with Bash (since it's the only language I know so far." I managed to solve most of it by myself, had only to look for the sort command.
---
# Bash solution for day 1 problem 1
## Summary of the problem
- 2 Teams are searching for the locations where the Chief Historian might be.
- Each location has a 'location ID'.
- 2 Groups trying to make a complete list of 'location ID'.
- The two lists are not similar.
- Pair the smallest 'location ID' from the left with the smallest 'location ID' from the right
- Measure the distance (difference) between each 'location ID' pair.
- Measure the total aggregate distance between all 'location ID' pairs.
# inputs
A text file with the 2 lists is presented in the following format
18944 47230
94847 63037
93893 35622
#!/bin/bash
# Generate an array from the input
list=(`cat input.txt`)
# Save the even elements into list.left.txt and the odd elements into list.right.txt
for el in "${!list[@]}"
do
rem=$((${el} % 2))
if [[ rem -eq 0 ]]
then
echo "${list[$el]}" >> list.left.txt
else
echo "${list[$el]}" >> list.right.txt
fi
done
# Sorting the numbers
sort list.left.txt > list.left.sorted.txt
sort list.right.txt > list.right.sorted.txt
# create arrays from the two files
left=(`cat list.left.sorted.txt`)
right=(`cat list.right.sorted.txt`)
# calculate the difference and save it to a text file.
for ele in "${!left[@]}"
do
diff=$(("${left[$ele]}"-"${right[$ele]}"))
if [ $diff -ge 0 ]
then
echo "$diff" >> diffs.txt
else
diff=$(($diff * -1))
echo "$diff" >> diffs.txt
fi
done
# Import the differences as an array
di=(`cat diffs.txt`)
total=0
for elem in ${di[@]}
do
total=$(($total + $elem))
done
echo "$total"
Can you change the escape key in vi mode?
I want to use ctrl+c like I use in my editor to enter normal mode
https://redd.it/1h33g39
@r_bash
Understanding heredoc variable substitution
Hello, I'm confused about the output of this script:
Foo="bar"
cat << EOF
a $Foo
$Foo
EOF
This outputs:
a bar
Foo
It looks like variables at the start of a line don't get substituted. Can I work around that?
https://redd.it/1h2kcfd
@r_bash
Linux Foundation Certificate Shell Scripting using Bash (SC103)
I got a coupon to attempt the certificate exam SC103 from The Linux Foundation. Wondering if anyone has given this exam? How should I prepare specifically for this exam as this would be online proctored exam. I have few months before the voucher expires. Any suggestions would be appreciated.
https://redd.it/1h1qfjy
@r_bash
Check if the input file and dictionary file are provided
if [ $# -eq 0 ]; then
echo "input file and dictionary missing"
exit 1
fi
# Check if the input file is valid
input_file=$1
if [ ! -f "$input_file" ]; then
echo "$input_file is not a file"
exit 1
fi
# Check if the dictionary file is valid
dictionary_file=$2
if [ ! -f "$dictionary_file" ]; then
echo "$dictionary_file is not a file"
exit 1
fi
# Read the dictionary into an array
mapfile -t dictionary < "$dictionary_file"
# Convert dictionary array to lowercase for case-insensitive comparison
dictionary=("${dictionary[@],,}")
# Check the input file for 4-letter words
grep -o '\b[a-zA-Z]\{4\}\b' "$input_file" | while read word; do
# Convert the word to lowercase
word=$(echo "$word" | tr '[:upper:]' '[:lower:]')
# Check if the word is NOT in the dictionary
if ! [[ " ${dictionary[@]} " =~ " ${word} " ]]; then
echo "$word"
fi
done
https://redd.it/1gxdzdz
@r_bash
How to expand array in string?
I'm trying to make the script support the usage described below and am having trouble passing $DIRS (directory names as arguments) to fzf as a string. Pretty sure converting array to string should be avoided, but what are alternatives? A directory could contain a space.
# Usage: re <pattern> dirs
trap 'rm /tmp/.rg-fzf-{f,r} >/dev/null 2>&1' EXIT INT QUIT TERM
INITIALQUERY="$1"
shift
DIRS=( "$@" )
RGPREFIX="rg --column --line-number --no-heading --color=always --smart-case"
fzf --ansi --disabled --query "$INITIALQUERY" \
--bind "start:reload:$RGPREFIX {q} ${DIRS*}" \
--bind "change:reload:sleep 0.1; $RGPREFIX {q} ${DIRS[*]} || true" \
--bind 'ctrl-r:transform:[[ ! $FZFPROMPT =~ ripgrep ]] &&
echo "rebind(change)+change-prompt(1. ripgrep> )+disable-search+transform-query:echo \{q} > /tmp/.rg-fzf-f; cat /tmp/.rg-fzf-r" ||
echo "unbind(change)+change-prompt(2. fzf> )+enable-search+transform-query:echo \{q} > /tmp/.rg-fzf-r; cat /tmp/.rg-fzf-f"' \
... \
--bind 'enter:become(nvim {1} +{2})'
Basically I'm trying to tweak this fzf command that uses rg (grep-like alternative) command to support taking the rest of the arguments starting from the second argument as directories to search for, with the first argument being the string to search for.
https://redd.it/1gxsqz4
@r_bash
Is there a way to know history of update?
Edited: title should say Uptime and not update
Hi, I'd like to get something like a uptime history...
for add time to use in last 2 days for check battery use...
I think batt is dead at 2 hours.
thanks and regards!
https://redd.it/1h9jhwe
@r_bash
Parse urls, print those not found
I have a list of urls in the forms:
https://abc.com/d341/en/ab/cd/ef/gh/cat-ifje-full
https://abc.com/defw/en/cat-don
https://abc.com/ens/cat-ifje
https://abc.com/dm29/dofne-don-partial
https://abc.com/ens/mew-feo
https://abc.com/ens/mew-feo-partial
https://def.com/fgew/dofne-don-full
The only thing that matters are abc.com urls (I don't care about URLs from other domains) and its last "field" of the url with the suffix -full and -partial being optional. When there are duplicates, prefer first the -full version, then the -partial version. In the above example, 1st and 3rd urls are duplicates and the 3rd url should be excluded from the list. 5th and 6th urls are the same and the 6th url should be excluded from the list.
Now the unique list of items are:
cat-ifje
cat-don
mew-feo
dofne-don
From this list, I apply a command likefind to search my filesystem to each item to see if I have a file containing this name of this item as a substring.
Now, how do I get back the original url if there are no results from find for the item? The output I'm looking for is:
https://abc.com/d341/en/ab/cd/ef/gh/cat-ifje-full
https://abc.com/defw/en/cat-don
https://abc.com/dm29/dofne-don-full
https://abc.com/ens/mew-feo-partial
https://abc.com/dm29/dofne-don-partial
I think working from my existing solution to "search the item not found" from the array of URLs would be in-efficient. I guess an associative array from the start can work?
I'm processing several hundreds of items, applying find to each. I've gotten up to the point where I have the list of items not found from the filesystem, so I only need to get back their original URLs.
Any solutions much appreciated. Can even be a single awk command.
https://redd.it/1h8jdoq
@r_bash
Which is better for capturing function output
Which is the better way to capture output from a function? Passing a variable name to a function and creating a reference with declare -n, or command substitution? What do you all prefer?
What I'm doing is calling a function which then queries an API which returns a json string. Which i then later parse. I have to do this with 4 different API endpoints to gather all the information i need. I like to keep related things stored in a dictionary. I'm sure I'm being pedantic but i can't decide between the two.
mydictjson="$(somefunc)"
vs.
somefunc mydict
Is there that much of a performance hit with the subshell that spawns with command substitution?
https://redd.it/1h8cuhy
@r_bash
Unexpected evaluatoin of "date +%M" in ~/.bashrc
I use the following command in an alias in my bashrc$(date +%Y)/$(date +%M)/KW$(date +%V)-$(( $(date +%V) +2))
Why on earth does it evaluate to something like 2024/23/KW49-51 and an ever changing month? I cannot even figure out, what is the problem. Sometimes when sourcing the bashrc I get a new month, sometimes not. What is happening here?
https://redd.it/1h81d98
@r_bash
replacing placeholders in a file with variables from a script
Yeah, this title probably doesn't make sense so here I go...
I have a txt file with a bunch of html code that will make up a person's signature. In the txt file I have {{firstname}} {{lastname}} and {{email}}. In my bash script I have variables $firstname $lastname and $email. I want to write the txt file to a html file but replace the placeholders in the txt file with what the variables are.
https://redd.it/1h7li6n
@r_bash
I Asked ChatGPT About ‘ShowFilesHere’—It Took Me to the Actual Project Link!
https://github.com/andrewrgarcia/files-here-wzrd
https://redd.it/1h7um27
@r_bash
How to exclude a directory from find and rsync except for a few very specific files?
I'm struggling with nested include/exclude for find and rsync.
I want to find or rsync my dotfiles, except for the .mozilla folder (among some others). But I want the login data of firefox preserved. So far, I have
find -path '*/.*' -not -path '*/.cache/*' -not -path '*/.mozilla/*' -path '*/.mozilla/firefox/*.default-release/{autofill-profiles,signedInUser,prefs}.js*' > dotfiles
which gives back a blank file. How can I do this properly to exclude the majority of stuff from one directory, but still include these specific files?
I haven't yet tackled this for rsync (and maybe tar), but solutions for these are also welcome.
https://redd.it/1h75w8x
@r_bash
Any way to hook into 'command not found' and run a script / function?
Curious if there's any way to hook into the error condition 'command not found' and run a script/function? Basically, I'd like to do something similar to "thefuck" but have it run automatically.
$ doesnotexist
-bash: doesnotexist: command not found
# how to (automatically) call some custom function/script/etc?
# preferably with access to bash history so I can run a
# fuzzy find with target command vs my defined aliases
So far my searches keep coming up with irrelevant stuff so I'm not sure if I'm just using bad search terms or if this is something that is just not possible under bash.
https://redd.it/1h65lkg
@r_bash
Why this loop doesn't break the first time?
while read -r line
do
echo "$line"
done <file.txt
read -r line has nothing to read the first time the loop runs, why it doesn't break the first time?
Escape $ to write literal placeholders
Hi,
Newbie here, apologies in advance if my question is not appropriate.
I have a bash script that installs some software, and I would like to generate a networkd-dispatcher script.
The networkd-dispatcher script should contain placeholders such as "$IFACE" and "$UNIT_NAME", but the installation script interprets them as undeclared variables, and the networkd-dispatcher scripts ends up with empty spaces.
How can I escape these "$"?
This is what I have at the moment in the installation script:
createnetworkdscript() {
cat << EOF > $HOME/BirdNET-Pi/templates/50-birdweather-publication
#!/bin/bash
UNITNAME="birdweatherpublication@$IFACE.service"
# Check if the service is active and then start it
if systemctl is-active --quiet "$UNITNAME"; then
echo "$UNITNAME is already running."
else
echo "Starting $UNITNAME..."
systemctl start "$UNITNAME"
fi
EOF
chmod +x $HOME/BirdNET-Pi/templates/50-birdweather-publication
chown root:root $HOME/BirdNET-Pi/templates/50-birdweather-publication
ln -sf $HOME/BirdNET-Pi/templates/50-birdweather-publication /etc/networkd-dispatcher/routable.d
systemctl enable systemd-networkd
}
createnetworkdscript
https://redd.it/1h47zez
@r_bash
Can someone ELI5 "trailing newline", what the -n command means, the -e command and what "echo" is?
I am trying to have an understanding of what these things actually mean and have an understanding of it.
The more I read the more confused I get, if someone could explain it so a child could understand it I would appreciate it.
https://redd.it/1h2vykk
@r_bash
Parsing byte counts
A few scripts I wrote have "byte count" as an optional input. Id like these to accept using prefixes (e.g., 64 kb or 128 MiB). But, there are 2 competing systems at play here.
kilobyte is 1000, megabyte is 1000^2, etc.
kibibyte is 1024, mebibyte is 1024^2, etc.
Is there some universally agreed upon syntax for which prefic abbreviations map to 1000^n vs which map to 1024^N?
NOTE: for my use cases it doesnt make sense to specify bit count, so wshether or not there is a trailing b or B it will always refer to bytes.
My intuition here is that
1000^N:
k, kb, kB --> 1000
m, mb, mB --> 1000^2
etc.
1024^N:
K, Ki, ki, Kb, Kib, kib, KB, KiB, kiB --> 1024
M, Mi, mi, Mb, Mib, mib, MB, MiB, miB --> 1024^2
etc.
Are there any commonly used programs that would conflict with this mapping?
As far as the actual implementation, I use something like
getBytes() {
local +i nn
local -A byteMap
byteMap=([k]=1 [m]=2 [g]=3 [t]=4 [p]=5 [e]=6)
for nn in "${@}"; do
nn="${nn//[bB ]/}"
case "${nn}" in
kmgtpe)
echo "$(( ${nn//^0-9/} ( 1000 ${byteMap[${nn//[0-9]/}]} ) ))"
;;
KMGTPEIi)
nn="${nn,,}"
nn="${nn%i}"
echo "$(( ${nn//^0-9/} ( 1024 ${byteMap[${nn//[0-9]/}]} ) ))"
;;
)
echo "${nn//^0-9/}"
;;
esac
done
}
but if anyone has a better implementation please do suggest it!
https://redd.it/1h230p8
@r_bash
Cannot understand why less than is not working.
Greetings.
Background information, I'm attempting to write a script to semi-automate tarballing a bunch of archived logs into single file for clients to download. Logrotate uses 2 digit months and days for the filenames, meaning using 07 for the month of July instead of just 7. I'm attempting to do a test to see if the month entered is under 10, so I can then prepend the numeral 0 in front of the input so tar function works. I keep getting a "input_start_month: integer expression expected" error on the highlighted line
The kicker is that the less-than-or-equal-to test above this line works fine.
read -p "Enter starting month of logs to pull in numerical format: " inputstartmonth
read -p "Enter ending month of logs to pull in numerical format: (if only within a single month, just enter the month again): " inputendmonth
# Verify Month range is valid and fix single digit input to multiple digits, i.e 5 to 05
if input_start_month -le input_end_month ; then #THIS LINE WORKS
echo "Month range is valid."
if "$input_start_month" -lt 10 ; then #ERRORS HERE
$startmonth = "0$inputstartmonth"
else
$startmonth = "$inputstartmonth"
fi
if $input_end_month -le 9 ; then
$endmonth = "0$inputendmonth"
else
$endmonth = "$inputendmonth"
fi
else
echo "ERROR! Month range is invalid."
exit 1;
fi
https://redd.it/1h16ey0
@r_bash
help with bash script
im working on a bash script that takes two text files, input file contains some text and dictionary.txt contains a list of 4 letter words that exist in the input file. im trying to find all 4 letter words in file and compare then to the words in dictionary.txt, if a word in input does not exist in dictionary, print that four letter word. here is my script:
#!/bin/bash
# Check if the input file and dictionary file are provided
if [ $# -eq 0 ]; then
echo "input file and dictionary missing"
exit 1
fi
# Check if the input file is valid
input_file=$1
if [ ! -f "$input_file" ]; then
echo "$input_file is not a file"
exit 1
fi
# Check if the dictionary file is valid
dictionary_file=$2
if [ ! -f "$dictionary_file" ]; then
echo "$dictionary_file is not a file"
exit 1
fi
# Read the dictionary into an array
mapfile -t dictionary < "$dictionary_file"
# Convert dictionary array to lowercase for case-insensitive comparison
dictionary=("${dictionary[@],,}")
# Check the input file for 4-letter words
grep -o '\b[a-zA-Z]\{4\}\b' "$input_file" | while read word; do
# Convert the word to lowercase
word=$(echo "$word" | tr '[:upper:]' '[:lower:]')
# Check if the word is NOT in the dictionary
if ! [[ " ${dictionary[@]} " =~ " ${word} " ]]; then
echo "$word"
fi
done
#!/bin/bash
# Check if the input file and dictionary file are provided
if [ $# -eq 0 ]; then
echo "input file and dictionary missing"
exit 1
fi
# Check if the input file is valid
input_file=$1
if [ ! -f "$input_file" ]; then
echo "$input_file is not a file"
exit 1
fi
# Check if the dictionary file is valid
dictionary_file=$2
if [ ! -f "$dictionary_file" ]; then
echo "$dictionary_file is not a file"
exit 1
fi
# Read the dictionary into an array
mapfile -t dictionary < "$dictionary_file"
# Convert dictionary array to lowercase for case-insensitive comparison
dictionary=("${dictionary[@],,}")
# Check the input file for 4-letter words
grep -o '\b[a-zA-Z]\{4\}\b' "$input_file" | while read word; do
# Convert the word to lowercase
word=$(echo "$word" | tr '[:upper:]' '[:lower:]')
# Check if the word is NOT in the dictionary
if ! [[ " ${dictionary[@]} " =~ " ${word} " ]]; then
echo "$word"
fi
doneim working on a bash script that takes two text files, input file contains some text and dictionary.txt contains a list of 4 letter words that exist in the input file. im trying to find all 4 letter words in file and compare then to the words in dictionary.txt, if a word in input does not exist in dictionary, print that four letter word. here is my script: #!/bin/bash
# Check if the input file and dictionary file are provided
if [ $# -eq 0 ]; then
echo "input file and dictionary missing"
exit 1
fi
# Check if the input file is valid
input_file=$1
if [ ! -f "$input_file" ]; then
echo "$input_file is not a file"
exit 1
fi
# Check if the dictionary file is valid
dictionary_file=$2
if [ ! -f "$dictionary_file" ]; then
echo "$dictionary_file is not a file"
exit 1
fi
# Read the dictionary into an array
mapfile -t dictionary < "$dictionary_file"
# Convert dictionary array to lowercase for case-insensitive comparison
dictionary=("${dictionary[@],,}")
# Check the input file for 4-letter words
grep -o '\b[a-zA-Z]\{4\}\b' "$input_file" | while read word; do
# Convert the word to lowercase
word=$(echo "$word" | tr '[:upper:]' '[:lower:]')
# Check if the word is NOT in the dictionary
if ! [[ " ${dictionary[@]} " =~ " ${word} " ]]; then
echo "$word"
fi
done
#!/bin/bash
#
Clicraft: An Unofficial CLI Minecraft clone
Hello! I am a relatively new Linux user and I spent the better part of a month working on a project called clicraft. It is available at https://github.com/DontEvenTalkToMe/clicraft ! Please do check it out and give me some feedback as I would like to develop my skills further, thanks!
https://redd.it/1h08y46
@r_bash