CODEWITHSUNDEEP
unixsed
Newbiee
Newbiee

Reputation: 105

UNIX: how to translate "/" when using search and replace command by sed

path=/tmp/a1

file=/tmp/a1/a.txt

file_without_path=`echo $file | sed s/'\/tmp\/a1'/''/g`

echo $file_without_path

In the code above, I have a question

If variable "path" is a dynamic veriable which allows users to self-define

e.g., user defines "path" as /usr/local/

Then I pass this value to do search and replace

However, if I pass this value without any intervention

the program may treat it as echo $file | sed s//usr/local/''/g

I tried to use tr -s '/' '\/' but it is not successful

I would like to ask how can you solve such case

Thanks.

Upvotes: 0

Views: 111

Answers (1)

Costi Ciudatu
Costi Ciudatu

Reputation: 38265

The separator for the sed "s" command is not required to be /; sed will use as separator whatever comes after "s":

sed s%'/tmp/a1'%''%g  ## no need to worry about escaping slashes any more

Upvotes: 1

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