Mac OS X Panther in a Nutshell, 2nd Edition

Differing Features

Table 19-2 is a sampling of features that differ between the two shells.

Table 19-2. Differences between the bash and tcsh shells

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