LinuxQuestions.org - Bash script to edit text file

- Linux - Desktop (https://www.linuxquestions.org/questions/linux-desktop-74/)

- - Bash script to edit text file (https://www.linuxquestions.org/questions/linux-desktop-74/bash-script-to-edit-text-file-518072/)

Bash script to edit text file

I have a text file that is too big to edit by hand and I want to create a simple little script that deletes part of the entry and leaves the rest.

For example, every line has something like this:

Code:

http://user:pass@whatever.whatever.com/

I want to only have

Code:

user:pass

Can anyone help?

This is not very smart, but might do the trick:

Code:

#!/bin/sh



if [ -z $1 ]; then

        echo "Needs filename as argument."

        exit 1

elif [ -f "$1" ]; then

        fname="$1"

fi



while read a;

do



  echo "$a" | sed -e "s+http://++" -e "s+@.*$++g"



done < "$fname"

* Save this as a shell script of a name you like, e.g. url-extract.sh

* Make it executable with chmod +x url-extract.sh

* Give your filename as the first argument:
url-extract.sh filename_that_is_to_big_to_edit_by_hand.txt

and it returns only user:pass as you wanted

Ok, I shall give it a shot.

Sweet, it worked.