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5
votes
4answers
2k views

Why can't I get the exit values of a command in this bash script?

So I was writing this little nautilus script for transcoding video into mp3: #! /bin/bash -x if [ -z "$1" ] then zenity --warning --text="Error - No file selected !" exit 1 fi ...
118
votes
15answers
47k views

Get exit status of process that's piped to another

I have two processes foo and bar, connected with a pipe: $ foo | bar bar always exits 0; I'm interested in the exit code of foo. Is there any way to get at it?
2
votes
3answers
1k views

dhclient exits with status 0 but still no address

I've been trying to find out with the man page and some other sources if the exit status doesn't necessarily mean you achieved an address but I'm thinking I maybe didn't read it correctly. Does anyone ...
9
votes
4answers
4k views

Why should a child of a vfork or fork call _exit() instead of exit()?

From the man page of vfork(): vfork() differs from fork() in that the parent is suspended until the child makes a call to execve(2) or _exit(2). The child shares all memory with its ...