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Bourne: search for a non-numeric character in $VAR

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# 1  
Old 12-14-2007
Bourne: search for a non-numeric character in $VAR
if $1 = "123x456", how can I test for the non-numeric character 'x' in that string. I've tried expr with "[^0-9]" but it did not find the x. Any ideas? Can this perhaps be done with sed?

Thanks.
# 2  
Old 12-14-2007
If only for unsigned integers:

bash3

Code:
bash 3.2.25(1)$ [[ 12345x6 =~ [^0-9] ]]&&printf "No digit found: %s\n" "$BASH_REMATCH"
No digit found: x

Otherwise:

Code:
v="12345x6"
case $v in (*[!0-9]*) printf "No digit found: %s\n" "$v";;esac

For old, old sh use this syntax:

Code:
case $v in *[!0-9]*) printf "No digit found: %s\n" "$v";;esac

P.S. Just noticed "Bourne" Smilie If not bourne again 3, then [23] Smilie
Last edited by radoulov; 12-14-2007 at 01:06 PM..
# 3  
Old 12-14-2007
I had a feeling it might require case. Thank you so much.
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