bashoneliners.com

Welcome to bashoneliners.com, a growing collection of practical and well-explained Bash one-liners, snippets, tips and tricks. We review and improve every contributed one-liner to make sure it is of high quality: useful, easy to read, follows best practices, with clear, detailed, accurate explanation. These one-liners should help you automate tasks, troubleshoot problems, whether it be in system administration, file management, networking or programming.

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lsof / | awk '{ if($7 > 1048576) print $7/1048576 "MB" " " $9 " " $1 }' | sort -n -u | tail

find ~ -name ".git" 2> /dev/null | sed 's/\/.git/\//g' | awk '{print "-------------------------\n\033[1;32mGit Repo:\033[0m " $1; system("git --git-dir="$1".git --work-tree="$1" status")}'

echo {01..10}

clear;while x=0; do clear;date;echo "";echo "  [Count] | [IP ADDR]";echo "-------------------";netstat -np|grep :80|grep -v LISTEN|awk '{print $5}'|cut -d: -f1|uniq -c; sleep 5;done

for INPUT in *.avi ; do echo "${INPUT%.avi}" ; done | xargs -i -P9  HandBrakeCLI -i "{}".avi -o "{}".mp4

for i in *; do mv "$i" "${i,,}"; done

ifconfig -a | grep -Po '\b(?!255)(?:\d{1,3}\.){3}(?!255)\d{1,3}\b' | xargs nmap -A -p0-

curl -s http://cbsg.sourceforge.net/cgi-bin/live | grep -Eo '^<li>.*</li>' | sed s,\</\\?li\>,,g | shuf -n 1

watch --interval 5 killall -USR1 dd

find . -type f -mtime +1 -name "*.log" -exec zip -m {}.zip {} \; >/dev/null

netstat -tn 2>/dev/null | awk '/:80\>/ {print $5}' | cut -d: -f1 | sort | uniq -c | sort -nr | head

[ test_statement ] && ( then_statement ) || ( else_statement );

$TERMINAL & disown

grep "phpmyadmin" $path_to_access.log | grep -Po "^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}" | sort | uniq | xargs -I% sudo iptables -A INPUT -s % -j DROP

echo "Here comes the output of my failing code" | tee >(pbcopy)

find . -type f  -name '*.java' -exec sh -c 'iconv -f cp1252 -t utf-8 "$1" > converted && mv converted "$1"' -- {} \;

ls -R | grep ":$" | sed -e 's/:$//' -e 's/[^-][^\/]*\//--/g' -e 's/^/   /' -e 's/-/|/'

printf '%s\n' {1..10}

sudo -s <<< 'apt update -y && apt upgrade -y'

CWD=$(cd "$(dirname "$0")" && pwd)

git commit -m "$(w3m whatthecommit.com | head -n 1)"

for ((i=1; i<=10; ++i)); do echo $i; done

fac() { (echo 1; seq $1) | paste -s -d\* | bc; }

find . -name *conf* -exec grep -Hni 'matching_text' {} \; > matching_text.conf.list

dig +short myip.opendns.com @resolver1.opendns.com