Linux in a Nutshell, Fourth Edition

Differing Features

The following table is a sampling of features that differ between the two shells:

bash	tcsh	Meaning/Action
$	%	Default prompt.
>|	>!	Force redirection.
	>>!	Force append.
var=val	set var=val	Variable assignment.
export var=val	setenv var val	Set environment variable.
$#	$#argv	Number of arguments.
$( command ), ``	``	Command substitution.
. file, source file	source file	Execute commands in file.
done	end	End a loop statement.
esac	endsw	End case or switch.
for/do	foreach	Loop through variables.
if [ $i -eq 5 ]	if ($i= =5)	Sample if statement.
fi	endif	End if statement.
ulimit	limit	Set resource limits.
read	$<	Read from terminal.
readonly	set -r	Make a variable read-only.
Tab Tab		Show possible completions.
trap 2	onintr	Ignore interrupts.
until/do	until	Begin until loop.
while/do	while	Begin while loop.