# Bash ### General * `pwd` - shows the current directory path * `ls` - lists the files in the current path * `touch ` - creates a new file in the current path * `cd ` - checkout to the path #### Terminal command - Navigate * `ctrl` + `a` - to move the cursor to the beginning of the line * `ctrl` + `e` - to move the cursor to the end of the line #### Terminal command - Delete * `ctrl` + `w` - to delete the last word * `ctrl` + `u` - to delete all the way back to the start of the line * `ctrl` + `k` - to delete to the end of the line #### Permission * `sudo chgrp -R admin /usr/local` - set write permission for admin for certain dir * `sudo chown -R $(whoami) /usr/local` - makes `/usr/local` writeable for the user #### Port Find port usage ```sh ps -ef | grep puma ``` Kill all processes running on a port ```sh lsof -ti:9000 | xargs kill ``` where 9000 is the port number here #### Advanced * `ctrl` + `r` - Search through the command history (after pressing, type to search, press ctrl-r repeatedly to cycle through more matches, press Enter to execute the found command, or hit the right arrow to put the result in the current line to allow editing) **Open VSCode from the terminal**

```sh code . ```