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Sed Error Unknown option to 's' + Solution

Mar 2, 2011 · 1 minute read
Category: linux

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If you are struggling to figure out why your Sed script is failing this could well be the solution.

Every example you see using sed specifies / as a delimiter.

Now what if your pattern actually includes a slash in the body text?

If you are using a variable you might not realise that you are including a slash.

Easy thing to do, just switch the delimiter to something else like #

so

sed "s/find/$REPLACE/"

becomes

sed "s#find#$REPLACE#"

and hey presto it works!


Tags: linuxerroroptionbashsedscriptunknowndelimiter