Issue
I am new to bash scripting and was looking into what kid of command will help me replace a specific string in an xml file.
uri='file:/var/lib/abc/cde.repo/r/c/e/v/1.1/abc-1.1.jar'
Should be replaced with
uri='file:/lib/abc-1.1.jar'
The strings vary as the jars vary too. First part of the string "file:/var/lib/abc/cde.repo/r/" is constant and is across all strings. The 2nd half is varying
This needs to be done across entire file. Please note that replacing one is easier then doing it for each an every string that varies. I am trying to look for solution to do it in one single command.
I know we can use sed but how? Any pointers are highly appreciated
Thanks
Solution
With sed:
sed "s~uri='file:/var/lib/abc/cde.repo/r/c/e/v/1\.1/abc-1.1.jar~uri='file:/lib/abc-1\.1\.jar'~g"
Basically it is:
sed "s~pattern~replacement~g"
where s is the command substitute and the trailing g means globally. I'm using ~ as the delimiter char as this helps to avoid escaping all that / in the paths. (thanks @Jotne)
Update: In order to make the regex more flexible, you may try this:
sed 's~file.*/\(.*\.jar\)\(.*\)~file:///lib/\1\2~' a.txt
It searches for file: ... .jar links, grabs the name of the jar file and builds the new links.
Answered By - hek2mgl Answer Checked By - David Marino (WPSolving Volunteer)