• Aug 7, 2023 •C S
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# Three ways of checking if a file exists in a shell script FILE=/etc/resolv.conf if test -f "$FILE"; then echo "$FILE exists." fi if [ -f "$FILE" ]; then echo "$FILE exists." fi if [[ -f "$FILE" ]]; then echo "$FILE exists." fi
• Sep 30, 2021 •LeifMessinger
0 likes • 11 views
touch /tmp/login1.txt /tmp/login2.txt while [ true ] do who | gawk '{ print $1 }' > /tmp/login2.txt comm -13 /tmp/login1.txt /tmp/login2.txt #Just a bit easier to read #diff /tmp/login1.txt /tmp/login2.txt cat /tmp/login2.txt > /tmp/login1.txt sleep 1 done
• Oct 2, 2026 •LeifMessinger
0 likes • 4 views
#!/usr/bin/env bash #Also pure vibecoded slop. Never tested. Ever. set -euo pipefail if [ $# -lt 1 ]; then echo "Usage: $0 <python_script.py> [--dryrun]" exit 1 fi TARGET="$1" DRYRUN=false if [[ "${2:-}" == "--dryrun" ]]; then DRYRUN=true fi OUTDIR="clean" CWD="$(pwd)" echo "=== Bash Trace Collector ===" echo "Script: $TARGET" echo "CWD: $CWD" echo "DryRun: $DRYRUN" echo # Run trace TRACE_OUTPUT=$(python -m trace --trackcalls "$TARGET" 2>&1) # Extract .py paths (Windows, Unix, mixed) echo "$TRACE_OUTPUT" \ | grep -Eo '([A-Za-z]:[\\/][^*<>"]+\.py)|(/[A-Za-z0-9._/-]+\.py)|(\.[/\\][^*<>"]+\.py)' \ | sort -u \ | while read -r FILE; do # Normalize slashes FILE="${FILE//\\//}" # Skip frozen modules if [[ "$FILE" == "<frozen"* ]]; then continue fi # Only keep files inside the current working directory if [[ "$FILE" == "$CWD"* ]]; then # Compute relative path REL="${FILE#$CWD/}" DEST="$OUTDIR/$REL" DESTDIR="$(dirname "$DEST")" if $DRYRUN; then echo "[WOULD COPY] $FILE --> $DEST" else mkdir -p "$DESTDIR" echo "[COPYING] $FILE" cp "$FILE" "$DEST" fi else echo "[IGNORED: outside CWD] $FILE" fi done echo echo "=== DONE ===" if $DRYRUN; then echo "Dry run complete. No files were copied." else echo "Files copied to '$OUTDIR' with preserved relative paths." fi
• Feb 5, 2024 •LeifMessinger
0 likes • 13 views
#!/bin/bash # Recursively find all .svelte files in the current directory and its subdirectories find . -type f -name "*.svelte" -o -name "*.html" -o -name "*.htm" | while read file; do # Replace all h1 tags with the specified format sed -i 's/<h1>\(.*\)<\/h1>/<h1 id="\1">\1<\/h1>/g' "$file" # Replace all h2 tags with the specified format sed -i 's/<h2>\(.*\)<\/h2>/<h2 id="\1">\1<\/h2>/g' "$file" # Remove whitespace from the id attribute value for i in {0..10} ; do sed -i 's/\(id="[^"]*\)\W\([^"]*"\)/\1\2/g' "$file" done done
• Feb 22, 2022 •LeifMessinger
0 likes • 2 views
#Leif Messinger #For when you want to search a lot of words in a file fast #Arg 1 is the argument the list of words you want to search #Arg 2 is the file you want to search #-z means that it looks at the file as a whole, just treating newlines a characters. #-r is regex. Needed for $, even tho the documentation says you don't need it. They are liars. #First command replaces all . with \. and all - with \- #Second command takes all newlines and replaces them with )|( #Third command takes the trailing |( and deletes it #Forth command puts a /( at the start #Fith command puts /!d at the end. This tells it to not delete any lines that match the pattern. #The second sed takes the output of the first sed as a command that searches any of the combined words #-f - takes a command from the input sed -z -r -e 's/\./\\\./g ; s/\-/\\\-/g' -e 's/\n/\)\|\(/g' -e 's/\|\($//' -e 'i/\(' -e 'a/!d' $1 | sed -r -f - $2
• Mar 7, 2021 •LeifMessinger
0 likes • 12 views
#!/bin/bash #makefileMaker.sh by Leif Messinger #Needs getDependencies.sh CC="gcc" #I have no idea why it's called CXX when it's a c++ compiler #I know that cpp is c pre processor, but still, why X? CXX="g++" CXXFLAGS="-std=c++17 -O2" #CFLAGS="-std=c17" LIBRARIES="$@" #Vulkan Flags for me #LIBRARIES="-lglfw -lvulkan -ldl -lpthread -lX11 -lXxf86vm -lXrandr -lXi" function compileAllFiles(){ #output: bruh.o yeet.o # CXX $CXXFLAGS bruh.o yeet.o -o output $LIBRARIES echo -n "output:" if compgen -G "*.cpp" &> /dev/null; then for f in *.cpp; do echo -n " ${f%.cpp}.o" done fi if compgen -G "*.c" &> /dev/null; then for f in *.c; do echo -n " ${f%.c}.o" done fi echo "" if compgen -G "*.cpp" &> /dev/null; then echo -e -n "\t$CXX $CXXFLAGS " else echo -e -n "\t$CC $CFLAGS " fi if compgen -G "*.cpp" &> /dev/null; then for f in *.cpp; do echo -n " ${f%.cpp}.o" done fi if compgen -G "*.c" &> /dev/null; then for f in *.c; do echo -n " ${f%.c}.o" done fi echo " -o output $LIBRARIES" echo "" } function compileAllObjectFiles(){ #bruh.o: bruh.cpp yeet.h # CXX $CXXFLAGS -c bruh.cpp $LIBRARIES if compgen -G "*.cpp" &> /dev/null; then for f in *.cpp; do echo -n "${f%.cpp}.o: $f" getDependencies.sh < $f echo "" echo -e "\t$CXX $CXXFLAGS -c $f" echo "" done fi #yeet.o: yeet.c # CC $CFLAGS -c yeet.c $LIBRARIES if compgen -G "*.c" &> /dev/null; then for f in *.c; do echo -n "${f%.c}.o: $f" getDependencies.sh < $f echo "" echo -e "\t$CC $CFLAGS -c $f" echo "" done fi } compileAllFiles compileAllObjectFiles #does not work on windows echo "clean:" echo -e "\trm -f -v *.o output" echo "" echo "run:" echo -e "\t./output" echo "" echo "debug:" if compgen -G "*.cpp" &> /dev/null; then echo -e -n "\t$CXX $CXXFLAGS -g " else echo -e -n "\t$CC $CFLAGS -g " fi if compgen -G "*.cpp" &> /dev/null; then for f in *.cpp; do echo -n " ${f}" done fi if compgen -G "*.c" &> /dev/null; then for f in *.c; do echo -n " ${f}" done fi echo " $LIBRARIES -o output" echo ""