[Linux]cheeting sheet of sh, csh, bash

sh, csh, bash 比较

Statement	sh	tcsh	bash
if-then-else	if [ expression ] then ... else ... fi	if (expression) then ... else ... endif 注:then必须和if同一行	if [ expression ] then ... else ... fi
for-loop	for var in (list) do .... done	foreach var (list) ... end	for var in [list] do ... done

Loop in Bash: http://www.cyberciti.biz/faq/bash-for-loop/

Sh: http://www.freeos.com/guides/lsst/
Bash: http://tldp.org/LDP/abs/html/