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I am trying to understand a shell script that uses sed. I found that there were some places where sed was invoked with the -e option.

I tried to see the man page and it just mentions,

-e command

Append the editing commands specified by the command argument to the list of commands.

which is not very clear to me.

Can someone kindly explain to me what the -e does? Thanks.

PS: I am using sed in mac

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migrated from Apr 15 '13 at 11:56

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up vote 4 down vote accepted

The -e parameters tells sed that you wish to supply multiple commands:

sed -e 's/string1/string2/g' -e 's/string4/string5/g'

This will replace string1 with string2 and string4 with string5.

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Thanks. That explains it. Now the cryptic message in the man command makes sense. – Sudar Apr 15 '13 at 11:06
:-) glad to be of help – Sean Landsman Apr 15 '13 at 11:07

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