Alex Lima
Amin JafferHow to find success/failure status of a command in different shells?
Posted by Amin Jaffer on June 14, 2009
Ksh/Borne/Bash shell
$ ls /usr/bin
….
# when success value is 0
$ echo $?
0
$ ls /usr/bin/blah
ls: 0653-341 The file /usr/bin/blah does not exist
# when failure non-zero status
$ echo $?
1
c/Tcsh
$ ls /usr/bin
….
# when success value is 0
$ echo $status
0
$ ls /usr/bin/blah
ls: 0653-341 The file /usr/bin/blah does not exist
# when failure non-zero status
$ echo $status
1
