During theme adjustments I often have to figure out where things are. I often use this to search for divs or content in Theme files on my server:
$ grep -rnw '/srv/users/developer/apps/appname/public' -e "genesis_header"
MySQL Database related
The commands for import and export of database.
// For export we use: $ mysqldump -p -u user dbname > filename.sql // For import we use: $ mysql -p -u user dbname < filename.sql // Keep your database password ready, you will need it.
More commands to follow, comment below if you want me to add any other ones.