ln -sfn [linkbase] [linktarget]
Makes a symbolic link and if the link already exists it creates it with the new options. This does not work for files since then
parameter stand fpr directory.
mysqldump -u root -p [DB-NAME] | gzip > [DB-NAME].sql.gz
dump a DB and gzip it.zcat [DB-NAME].sql.gz | mysql -u root -p [DB-NAME]
import a gzipped dumb to DB.
git clone [repo url] --branch [branch name]
to clone a repo with a specific branch