What does an ls command with "[", "]", and "?" do?
137248
regular expressions / pattern matching on ubuntu command line
73632
Use of ls with wc command
60653
What does size of a directory mean in output of 'ls -l' command?
88057
Logical operators ("and", "or") in DOS batch
709
What does '?' do in C++?
155408
What's the function of the "|" (pipe) operator?
12875
Understanding the exclamation mark (!) in bash
30195
What's the difference between [ and [[ in Bash?
37959
How do I display the nth result of an ls command?
133007
Is there any option with 'ls' command that I see only the directories?
157667
what is the meaning of \ | in a map vim command?
35350
What is the number between file permission and owner in ls -l command output?
10354
Why *not* parse `ls` (and what to do instead)?
108681
What is the $? (dollar question mark) variable in shell scripting?
76281
What does $(command) & do?
145840
What does "3>&1 1>&2 2>&3" do in a script?
119575
How are parentheses interpreted at the command line?