Count Number of Files in Directory

Get a count of the number of files in a directory.

# using ls
ls | wc -l
ls -Aq | wc -l
# include hidden files 
find . ! -name . -prune -print | grep -c /
find .//. ! -name . -print | grep -c //
# using tree if installed. yum install tree. apt-get install tree

Display Octal Permissions

If you’re working on the command line, listing a directory to display permissions of files is not always the most user-friendly. Here’s an example of listing the files in a directory using the ‘ls -al’ command.

$ ls -al
total 20
drwxrwsr-x  2 ulysses www-data 4096 Feb 26 13:31 .
drwxrwsr-x 10 ulysses www-data 4096 Feb 26 02:30 ..
-rw-rw-r--  1 ulysses www-data    0 Feb 26 13:31 display.txt
-rwxrwxr-x  1 ulysses ulysses   659 Dec  3 06:40
-rw-r--r--  1 ulysses ulysses   181 Feb 26 13:26
-rwxrwxr-x  1 ulysses ulysses   244 Feb 26 13:23

There has to be a better way to display permissions?

Well, there is. It’s a command called “stat” that displays the detailed status about a file or file system. On one of the switches of the stat command, is an option that allows you to display the file status in human readable format. Here’s an example using the stat from the command line.

$ stat -c '%A %a %n' *
664 display.txt

The result is a list of files in a directory with the file permissions in human readable format!