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@@ -1,26 +1,23 @@
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# https://cuddly-octo-palm-tree.com/posts/2021-10-31-better-bash-functions/
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f() (
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# code
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- var1=${1:-"default value"}
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+ var1=${1:-"default"}
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- # Always return numeric status (that's all bash supports)
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- #
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- # 0 == succuess
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- # other == failure
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+
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+ if [ "${var1}" == "default" ]; then
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+ echo errors and warning messages to stderr 1>&2
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+ return 1 # error, outut undefined
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+ fi
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- echo errors and warning messages to stderr 1>&2
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-
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- echo "string return value to stdout - var1 is $var1"
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- return 1
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+ echo "stirng value to stdout"
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+ return 0 # success, output defined
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)
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-f
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+return=`f` && echo SUCCESS return value is $return || echo FAILURE no return
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echo
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-f foo
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+return=`f FOO` && echo SUCCESS return value is $return || echo FAILURE no return
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echo
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-f bar
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-echo
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