Hi, case statements cannot use regular expressions, they use pattern matches, which have a different syntax.
Since there is no specification in this thread of what shell is going to be used, this is the best option, because a case statement works in any POSIX shell or even Bourne shell.
If your shell supports regex (modern Bash, ksh93, zsh) then you could do this (using the original example):
Code:
trap clear EXIT
DIALOG=${DIALOG=dialog}
while :
do
rfcval=$($DIALOG --title "RFC NUMBER" --clear \
--inputbox "Please enter an RFC Number" 16 17 2>&1 >/dev/tty)
retval=$?
case $retval in
0)
if [[ $rfcval =~ ^[0-9]{5,}$ ]]; then
echo "RFC Number: $rfcval" >> $accessfile
break
elif [[ $rfcval =~ ^(N/A|n/a)$ ]]; then
break
fi ;;
1)
exit 1;;
255)
rm -f "$accessfile" "$tempfile" "$sitefile"
exit 1 ;;
esac
done
exit 0
-- edit --
Just noticed the thread title mentions bash, oh well ...
Last edited by Scrutinizer; 03-19-2017 at 06:18 AM..
This User Gave Thanks to Scrutinizer For This Post:
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03-19-2017
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