Answer by Notiz Me for Is there a simple test for anything printed on stderr...
The most voted answer will work in most cases. But since I use set +o errexit in bash it errored out. This should work better in bash:fail_if_stderr() ( # save current options bash_options="${-}" #...
View ArticleAnswer by Stéphane Chazelas for Is there a simple test for anything printed...
You could do (POSIXly):if { cmd 2>&1 >&3 3>&- | grep '^'>&2; } 3>&1; then echo there was some output on stderrfiOr to preserve the original exit status if it was...
View ArticleAnswer by DopeGhoti for Is there a simple test for anything printed on stderr...
# output "NOK" if standard error has any output; "OK" otherwise:errlog=$(mktemp)somecommand 1>> "$stdlog" 2> "$errlog"if [[ -s "$errlog" ]]; then # File exists and has a size greater than zero...
View ArticleIs there a simple test for anything printed on stderr in shell/Bash?
I'd like invoke a command inside a shell script for Continuous Integration purposes. Exit status 0 means succes, otherwise failure. I'm writing a wrapper script to run several commands and fail if any...
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