5 Jun
2014
5 Jun
'14
1:38 p.m.
- What does the 1+ in the shell expansion ${1+"$@"} mean and do?
http://unix.stackexchange.com/questions/68484/what-does-1-mean-in-a-shell-sc...
- I know that $0 returns the shell name or shell script file name. How does
${0##*/} differ in effect from $0.
It strips a leading path. $0 is the shell/script exactly as it was invoked.
$ pwd /home/user $ ../../bin/bash [bash] $ echo $0 ../../bin/bash [bash] $ echo ${0##*/} bash [bash] $