• Sep 30, 2021 •LeifMessinger
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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 26, 2021 •LeifMessinger
0 likes • 3 views
#!/bin/bash #Leif Messinger lsm0147 #credit.sh FILES cred="Leif Messinger lsm0147" for bruh; do if [[ $bruh =~ \.cpp|\.c|\.java|\.js ]]; then comment="//$cred" else #Basically everything else gets a pound sign comment #Pound signs are standard across linux. bash, sed, gawk, python etc #Speaking of which, I need to escape it because of that. comment="\#$cred" fi if [ -s $bruh ]; then #If the file has a shebang if egrep -q '^#!/' $bruh; then sed -i "/^\#!\//a$comment" $bruh else sed -i "1i$comment" $bruh fi else echo "$comment" > $bruh fi done
• Apr 21, 2021 •LeifMessinger
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#diskRipper.sh by Leif Messinger #For use on debian, where your cds aren't immediately mounted wall "CD inserted boss" set -x #echo on cdDrivePath=$(ls -l /dev/cdrom | awk '{print $NF}') #CD could have no label, so that's why I need awk cdLabel=$(lsblk -n "/dev/$cdDrivePath" -o label) if [[ ! -z "$cdLabel" ]]; then #CD has label folderName=$cdLabel echo "The cd label is ${folderName}" if mkdir ./cds/"${folderName}"; then #Folder didn't exist before sudo mount /dev/cdrom ./.cdmountpoint sudo cp -r ./.cdmountpoint/* "./cds/${folderName}" sudo chmod -R 777 "./cds/${folderName}" sudo umount ./.cdmountpoint eject wall "CD done and ejecting" else wall "Already read that cd, skipped" fi else wall "CD had no label, skipped" fi
• Nov 18, 2022 •AustinLeath
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# # Austin Leath # checks for /Desktop symlink. Creates the symlink if it doesnt already exist # #Fetch the target user if desired, otherwise use the currently logged in user. if [ "$4" != "" ]; then TARGET_USER=$4 else TARGET_USER=$3 fi if [ "$5" != "" ]; then DIRECTORY_NAME=$5 else TARGET_USER="$3 Desktop" fi # Functions CHECK_SYMLINK() { if test -f "/Desktop"; then echo "/Desktop exists" else echo "/Desktop does not exist" fi } CHECK_SYNTHETIC_CONF() { if test -f "/etc/synthetic.conf"; then echo "/etc/synthetic.conf exists" else echo "/etc/synthetic.conf does not exist" fi } CREATE_SYMLINK() { if [[ $(CHECK_SYNTHETIC_CONF) != "/etc/synthetic.conf exists" ]]; then echo "/etc/synthetic.conf does not exist. creating.." touch /etc/synthetic.conf chown -R root:wheel /etc/synthetic.conf fi if grep -q "$DIRECTORY_NAME" /etc/synthetic.conf; then echo "$DIRECTORY_NAME already exists" exit 1 else echo "$DIRECTORY_NAME\t/Users/$TARGET_USER/Desktop" >> /etc/synthetic.conf fi echo "/Desktop symbolic link created" } if [[ $(CHECK_SYMLINK) != "/Desktop exists" ]]; then CREATE_SYMLINK fi exit 0
• Sep 29, 2021 •LeifMessinger
0 likes • 29 views
#!/bin/bash #cpcmd.sh [file1 [file2...]] #Prints out the commands needed to copy the file to your local machine #This will work on any server that also has the same hostname as in your hosts file. #I should update this to detect if a file is a directory, and enable recursion for those commands. If you do it now, it will probably just warn you. if [ -n "$1" ]; then for arg; do recursive=$(if [[ -d $arg ]]; then printf " -r"; fi) printf "scp$recursive \"$(whoami)@$(hostname):" printf `readlink -f $arg` printf "\" .\n" done else echo "scp \"$(whoami)@$(hostname):$PWD/*\" ." fi #-----------EDIT: #On the UNT cell machines, you have to do this script instead ##!/bin/bash #if [ -n "$1" ]; then # for arg; do # recursive=$(if [[ -d $arg ]]; then printf " -r"; fi) # printf "scp$recursive $(whoami)@$(hostname).eng.unt.edu:" # printf `readlink -f $arg` # printf " .\n" # done #else # echo "scp $(whoami)@$(hostname).eng.unt.edu:$PWD/* ." #fi
• Feb 22, 2022 •LeifMessinger
#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