How do I use sed to remove a double backslash
Multi tool use
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 :)
/
@Sash, you could use following solution too by which you need not to escape
/ to remove its special meaning stackoverflow.com/a/51139804/5866580– RavinderSingh13
Jul 2 at 15:53
/
I don't understand how you could figure out that to remove
/ you use / but couldn't make the leap to using // to remove //.– Ed Morton
Jul 2 at 17:06
/
/
//
//
@MarkSetchell IMHO you don't have to be clever to figure out that if X maps to Y then XX might map to YY and give it a try! :-)
– Ed Morton
Jul 2 at 20:44
@RavinderSingh13 I upvoted to restore.
– SLePort
Jul 3 at 13:15
3 Answers
3
You can choose another delimiter than / in your command:
/
sed 's;^//;;' file
Or, if you want to escape the /:
/
sed 's/^////' file
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#^//##'
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
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you just had to add another
/... see also: How to use different delimiters for sed substitute command?– Sundeep
Jul 2 at 14:52