Collection of small usefull bash scripts

Main idea is collectiong small bash scripts that can be usefull in dayly work

GIT

Remove local branches

Remove all local branches except develop, master, release

git branch | grep -ve "develop\|master\|release" | xargs git branch -D

Remove remote branches

Remove all remote branches from origin, except develop, master, release

git branch -r| grep -ve "[^-]develop\|master\|release" | sed 's/origin\///g' | xargs git push origin --force --delete 

Move files/folders with saving history

# Create destination folder recursively
mkdir -p libs/static

# Move folders and files except 'libs' folder
ls | grep -v "libs" | xargs -L1 -I{} git mv {} libs/static/

Merge files from other repo

git remote add static -f git@github.com/repo-to-merge.git
git merge static/master --allow-unrelated-histories
git commit -am "Merge files from repo-to-merge"
git remote remove static
git push origin master

Fix commit username, email

Change the author and committer name and e-mail of multiple commits in Git

git filter-branch -f --env-filter '
OLD_EMAIL="admin@localhost"
CORRECT_NAME="John Doe"
CORRECT_EMAIL="john@doe.com"
if [ "$GIT_COMMITTER_EMAIL" = "$OLD_EMAIL" ]
then
    export GIT_COMMITTER_NAME="$CORRECT_NAME"
    export GIT_COMMITTER_EMAIL="$CORRECT_EMAIL"
fi
if [ "$GIT_AUTHOR_EMAIL" = "$OLD_EMAIL" ]
then
    export GIT_AUTHOR_NAME="$CORRECT_NAME"
    export GIT_AUTHOR_EMAIL="$CORRECT_EMAIL"
fi
' --tag-name-filter cat -- --branches --tags

Folders

Remove folder fast

Remove node_modules without put into the Trash folder and without confirmations

rm -rf node_modules 

Network

Show open ports and what program is using them

netstat -lptn

netstat --tcp --listening --programs --numeric

Fether Reading

https://www.usenix.org/sites/default/files/conference/protected-files/lisa19_maheshwari.pdf