Shell Programming and Scripting

Hi,

I would like to ask about the meaning or purpose of set -e in the script bash, Does it mean if a wrong command in the script it will close or exit the script without continuation thats what happen if i set it in the terminal.


Thanks in advance

According to the man page for bash:

Code:

set -o <option>
...
  errexit Same as -e.
...

Why not just try it?

Code:

[root@vb1 bin]# set -e
[root@vb1 bin]# ls blah
ls: cannot access blah: No such file or directory
Connection to vb1 closed.

Code:

[root@vb1 bin]# cat myScript
set -e
ls blah
echo Hello

[root@vb1 ~]# ./myScript
ls: cannot access blah: No such file or directory
[root@vb1 ~]#

So, it would appear to mean "when there's an error, exit the current process".

Thanks scot

Yup thats what i did in the terminal, thanks also for pointing me out where to find the man page since on my thougth why i can't find the man page for set cause i used man set which it should be in the man page of bash..Thanks

Yup i just want to confirm on the meaning i try it on my terminal and its the same happens as you explain..

Thanks once again.

set is built into bash, but it's also a POSIX feature expected of any shell, which is why there's two man pages.