如何使用sed删除echo output的部分行

Question

I want to remove some lines. I already have git@gitlab.com:awg-roi-new/roi4cio-catalogs-fe.git and I need to leave only roi4cio-catalogs-fe . I used the next code but it isn't work proprely.

echo git@gitlab.com:awg-roi-new/roi4cio-catalogs-fe.git | sed -r 's/.*\///' | sed -r 's/\.+//'

Answer 1

Your command does not give you the right result because you are repeating 1 or more times a dot here:

sed -r 's/.*\///' | sed -r 's/\.+//'
                              ^^^
                     

But you want to match 1 or more characters after the dot:

sed -r 's/.*\///' | sed -r 's/\..+//'
                              ^^^^ 

---

To keep only the part between the last / till before the last occurrence of a . you can use a single command with a capture group and a backreference:

echo git@gitlab.com:awg-roi-new/roi4cio-catalogs-fe.git | 
    sed -E 's/.*\/([^/]+)\.[^./]+$/\1/'

Output

roi4cio-catalogs-fe

Answer 2

1st solution: With awk you could try following code. Where setting field separator(s) as .com OR / OR .git and printing 3rd field as per need.

echo "git@gitlab.com:awg-roi-new/roi4cio-catalogs-fe.git" | 
awk -F'\\.com:|\\/|\\.git' '{print $3}'

2nd solution: Using GNU grep please try following solution.

echo "git@gitlab.com:awg-roi-new/roi4cio-catalogs-fe.git" |
grep -oP '^.*?\/\K.*(?=\.git$)'

Answer 3

Using awk :

echo git@gitlab.com:awg-roi-new/roi4cio-catalogs-fe.git |
    awk -F'[/.]' '{print $3}'

Using sed :

echo git@gitlab.com:awg-roi-new/roi4cio-catalogs-fe.git |
    sed -E 's|.*/([^\.]+)\..*|\1|' 

Using only bash :

IFS='/.' read _ _ var _ <<< git@gitlab.com:awg-roi-new/roi4cio-catalogs-fe.git
echo "$var"

or using parameter expansion :

x='git@gitlab.com:awg-roi-new/roi4cio-catalogs-fe.git'
x=${x%.git}
x=${x##*/}"
echo "$x"

Or using BASH_REMATCH :

[[ $x =~ /([^\.]+)\. ]] && echo "${BASH_REMATCH[1]}"

Using Perl :

echo git@gitlab.com:awg-roi-new/roi4cio-catalogs-fe.git |
    perl -lne 'print $1 if m|/([^.]+)\.|'

Using grep :

echo git@gitlab.com:awg-roi-new/roi4cio-catalogs-fe.git |
    grep -oP '(?<=/)([^.]+)'

Ouput

roi4cio-catalogs-fe

Answer 4

Using sed

$ echo git@gitlab.com:awg-roi-new/roi4cio-catalogs-fe.git | sed -r 's~.*/|\..*~~g'
roi4cio-catalogs-fe