What does the operator `-gt` in shell scripts mean?
45325
Starting with bash: -lt and -gt arguments
12822
GNU find and masking the {} for some shells - which?
91653
Why does `at` warn me that commands will be executed using /bin/sh? What if I want a different shell?
96938
What's the difference between using > and >> in shell?
74331
Are there naming conventions for variables in shell scripts?
11423
Understand the meaning of `$_`
61676
Syntax of bash alias definition
121705
What is the purpose of "~" in the command "sed 's~ ~~g'"?
137445
Why is $ the default symbol for a user shell and # the default symbol for a root shell?
41303
When do we need curly braces around shell variables?
58687
What is the difference between $(command) and `command` in shell programming?
120214
What's the difference between <<, <<< and < < in bash?
83409
Difference between $ and # in Linux environment
42711
What does $$ mean in the shell?
50456
What does the 'grep' command do?
57007
What is the meaning of $? in a shell script?
13826
In Bash scripting, what's the meaning of " $! "?