How can I create a linux command that gets the value of a variable from a text file?-CodePudding

I have a file that looks like this:

serverPass i_am_a_password

I am basically looking for a command so I can set an environment variable to i_am_a_password.

I've tried using grep with serverPass but I am not sure how to split the output and somehow pipe it to a environment variable assignment.

Any help is appreciated.

CodePudding user response：

This should do it:

PASSWORD=$(cut -d' ' -f2 password.txt)

Now you will have the password in the environment variable called PASSWORD.
Test it with echo $PASSWORD

-d is the delimiter and -f2 means the field to output.

CodePudding user response：

If sed is an option, you can try

$ var=$(sed 's/[^ ]* \(.*\)/\1/' input_file)
$ echo "$var"
i_am_a_password