Department of Engineering

University of Cambridge >  Engineering Department >  computing help

Shell commands

See the ksh or sh-posix man page for more info on these. In bash you can use the help command.

alias :-

to list aliases

let :-

to do maths. Eg:- let x=2*4-5 ; echo $x

set :-

to list the current variables and their values.

typeset -f :-

to list functions

typeset -i :-

to list integer variables

which :-

to find where a program is (in some shells you use whence instead)