UNIX Command Line Tips & Tricks
I routinely use the following commands in my daily work. They might be helpful to other web developers out there.
##Files & Directories
ls - Lists files in a given directory.
la - Same as above, except this is a link to
ls -la which shows all files (including hidden files) and their permissions.
$ ls ~ //Look in the current users home directory Applications Dropbox Projects Archive Creative Cloud Files Library Public Desktop Movies VirtualBox VMs Documents Music bin Downloads Pictures tmp
$ la /Applications total 64 -rw-r--r--@ 1 ken admin 21K Jun 12 10:00 .DS_Store -rw-r--r-- 1 root wheel 0B Aug 25 2013 .localized drwxrwxrwx 4 root admin 136B May 27 14:56 Adobe drwxrwxr-x@ 9 root admin 306B May 19 07:53 Adobe Bridge CS5 drwxr-xr-x@ 5 root admin 170B Jul 16 19:04 Adobe Creative Cloud drwxrwxr-x@ 5 root admin 170B May 19 07:52 Adobe Device Central CS5 drwxrwxr-x@ 8 root admin 272B May 19 07:51 Adobe Extension Manager CS5 ...
cat - Outputs entire contents of a file to the terminal.
less - Outputs the contents of a file to the terminal and breaks it into pages which you can scroll with arrow keys.
$ cat README.md kenhowardpdx-blog ================= My personal blog about Front-End Web Development and Web Design
vim- As complex as you need it to be. I use it for simple editing.
echo - Not really for editing, but you can use it to append to a file (add a new line).
$ echo "the string to add" >> myfile.txt
For more useful commands, check out Jon de la Motte’s Linux Cheat Sheet.