CODEWITHSUNDEEP
linuxsedcommand
swiftcode123
swiftcode123

Reputation: 125

How do I use sed to remove a double backslash

I am trying to use sed to remove these double backslashes in the front of this string so that this:

//s3.amazonaws.com/umdheader.umd.edu/app/js/main.min.js

will become:

s3.amazonaws.com/umdheader.umd.edu/app/js/main.min.js

so far I have it where it can remove one through the com

sed 's/^\///g' output

but i need to remove two! please let me know thanks :)

Upvotes: 2

Views: 1508

Answers (3)

SLePort
SLePort

Reputation: 15461

You can choose another delimiter than / in your command:

sed 's;^//;;' file

Or, if you want to escape the /:

sed 's/^\/\///' file

Upvotes: 1

RavinderSingh13
RavinderSingh13

Reputation: 133428

Or in case you don't want to escape / and simple want to substitute / starting ones with NULL then do following.

echo "//s3.amazonaws.com/umdheader.umd.edu/app/js/main.min.js" | sed 's#^//##'

Upvotes: 2

Jorge Lainez
Jorge Lainez

Reputation: 66

You can try it this way with sed:

echo  "//s3.amazonaws.com/umdheader.umd.edu/app/js/main.min.js" | sed 's/^.*amazon/amazon/g'

or by regular expressions of variables

$ variable="//s3.amazonaws.com/umdheader.umd.edu/app/js/main.min.js"
$ echo ${variable#*//}
$ s3.amazonaws.com/umdheader.umd.edu/app/js/main.min.js

Upvotes: 2

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