.sh check for sufix g or m on size field

Chip Camden sterling at camdensoftware.com
Mon Jul 12 15:58:11 UTC 2010

Quoth Aiza on Monday, 12 July 2010:
> Sorry miss send, was not done yet.
> Have a .sh script that accepts an -s sparse file size.
> Only 2 suffix's are valid m and g.
> Been trying to get this line of code to strip out just the single 
> letter. But it strips the letter and every thing to the right of it.
> Timagesize=`echo-n "${imagesize}" | sed 's/g.*$//'`
> I plan to strip just the m or g if its there and the result should be 
> numeric. If not numeric know invalid suffix.
> Need help with the sed syntax. Or if there is better way I want to learn 
> it.
> Thanks
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It sounds like what you want is simply:

sed 's/[gm]//'

Or am I missing something?

Sterling (Chip) Camden    | sterling at camdensoftware.com | 2048D/3A978E4F
http://camdensoftware.com | http://chipstips.com        | http://chipsquips.com
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