How to replace a path with another path in sed?

Question

I have a csh script (although I can change languages if it has any relevance) where I have to:

sed s/AAA/BBB/ file

The problem is that AAA

Answer 1

sed can use any separator instead of / in the s command. Just use something that is not encountered in your paths:

s+AAA+BBB+

and so on.

Alternatively (and if you don't want to guess), you can pre-process your path with sed to escape the slashes:

pwdesc=$(echo $PWD | sed 's_/_\\/_g')

and then do what you need with $pwdesc.

Answer 2

We just needed to get the /h/ network path references out of the path. if we pointed them back to the /c/ drive they would map to non-existant directories but resolve quickly. In my .bashrc I used

PATH=`echo $PATH | sed -e "s+/h/+/c/+g"`

Answer 3

You can use parenthesis expansion ${i/p/r} to escape the slashes. In this case ${i//p/r} for escaping all occurrences.

$p1=${p1//\//\\/}
$p2=${p2//\//\\/}
sed s/$p1/$p2/ file

Or, more concise, in one line sed s/${p1//\//\\/}/${p2//\//\\/}/ file

The two fist slashes // are a separator in parenthesis expansion saying we are matching all occurrences, then \/ is for escaping the slash in the search template, the / as a second separator in the expansion, and then \\/ is the replacement, in witch the backslash must be escaped.

Answer 4

sed -i "s|$fileWithPath|HAHA|g" file

Answer 5

In my case the below method works.

sed -i 's/playstation/PS4/' input.txt

Can be also be written as

sed -i 's+playstation+PS4+' input.txt

• sed : is stream editor

• -i : Allows to edit the source file

• +: Is delimiter.

I hope the above information works for you

Answer 6

In circumstances where the replacement string or pattern string contain slashes, you can make use of the fact that GNU sed allows an alternative delimiter for the substitute command. Common choices for the delimiter are the pipe character | or the hash # - the best choice of delimiting character will often depend on the type of file being processed. In your case you can try

sed -i 's#/path/to/AAA#/path/to/BBB#g' your_file

Note: The g after last # is to change all occurrences in file if you want to change first ouccurence do not use g