UNIX

1.ls -R
2.grep include ./*
3.for f in *.*; do mv “$f” Unix_”$f”; done
4.for f in *.txt; do d="$(head -1 "$f") ;x=”$(cut -d " " -f1 $f)”  ; mv $f $x; done
5.wc –l *.txt
6.for i in ./*foo*;do mv -- "$i" "${i//foo/bar}";done
7.history|sort|cut –d-10 -n