On 2/16/22 19:32, Kang-Che Sung wrote:
Now, for an example where it makes a difference. Consider a Bash script like this: # enable automatic error handling set -eo pipefail # check for string "issues" in a logfile cat logfile | grep issue | sort --unique If there are no issues in the logs, grep return exit code 1 and the shell interprets this as an error and exits itself.Why do we need to implement a workaround in grep while you can do this in shell to ignore the exit code of grep? { grep issue <logfile || :; } | sort --unique
In order to implement his suggestion, you need to only ignore exit code 1, while still allowing other exit codes to abort the script. (like a system error while reading the file)
But also, I've never seen ":" used as a command... where is that documented? Is it equivalent to 'true'?
-Mike C _______________________________________________ busybox mailing list busybox@busybox.net http://lists.busybox.net/mailman/listinfo/busybox
