#Linux

git log -p

cut -d: -f1 /etc/passwd

The following shows how to match a word in a string and return previous word. The following will return “word1” base on “=” as a search term sed:…

find . -type f ! -name "*.jpg" ! -name "*.JPG" -delete

du -cs * .[^\.]* | sort -n du / |sort -n

wget –mirror –page-requisites –adjust-extension –no-parent –convert-links –directory-prefix=sousers http://stackoverflow.com/users

find . -mtime +30 -exec mv {} old/ \;

I believe 50 char are good enough. head -c90 /dev/urandom | base64 | sed s/[^a-zA-Z0-9]//g | head -n 1 | cut -c 1-50

Open the terminal and write echo $P4PASSWD

wget -qO- http://your-secret-link.asc | gpg -d