Regex with bash get specific string from multiline file and store as var

Question

I had a working script which could store in a var a single string without carriage returns or spaces or tabulations of a multi-line file: the git config file.

But it no longer works as github has changed that file's syntax.

What the file currently looks like :

[core]
    repositoryformatversion = 0
    filemode = true
    bare = false
    logallrefupdates = true
[remote "origin"]
    url = [email protected]:user/repo.git
    fetch = +refs/heads/*:refs/remotes/origin/*
#commented line

What I'm currently using to extract the desired string :

var3=$(sed 's/^[ \t]*//' .git/config | sed ':a;N;$!ba;s/\n//g' | sed -rn 's/.*https:\/\/(.*?)fetch.*/\1/p')
echo "this is repo" 
echo $var3

What I want it to return :

"this is repo"
"[email protected]:user/repo.git"

What I get :

"this is repo"
""

So far as I can see the data does not contain https, so it won't find anything. code isn't usable so far as I can tell with bash. :this regex is not bash it is sed, so the shell should make little or no difference (bash does support regular expressions, but you are not using them here). — cdarke
– cdarke, Commented May 9, 2018 at 16:36

builder-7000 · Accepted Answer · 2018-05-09 16:52:14Z

2

You could do:

echo -e "\"this is repo\"\n\"$(sed -n "s/.*url = \(.*\)/\1/p" inputfile.txt)\""

output:

"this is repo"
"[email protected]:user/repo.git"

sed's command : sed -n s/.*url = \(.*\)/\1/p will print lines that start with anything (.*) followed by url = followed by an URL. Matching lines will get replaced by the URL, which will get printed (by sed's p command).

edited May 9, 2018 at 16:52

answered May 9, 2018 at 16:39

builder-7000

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