Where I can find the manpage of IF condition of bash?
69079
if/then/else man page
123684
Test for non-zero length string in Bash: [ -n "$var" ] or [ "$var" ]
31087
How to check if a string contains a substring in Bash
13826
In Bash scripting, what's the meaning of " $! "?
8641
Which are the (Bash) shell special parameters/variables?
104624
Why don't shell builtins have proper man pages?
32654
How to know where shell variables and functions are set?
128374
what is $$ in bash?
79418
use regular expression in if-condition in bash
49762
Which is more idiomatic in a bash script: `|| true` or `|| :`?
145362
Open man page and search for string in a single command
16920
grep the man page of a command for hyphenated options
44877
How can I search within a manpage?
119181
How to debug bash script?
43775
Checking the success of a command in a bash `if [ .. ]` statement
29812
How do I test if a variable is a number in Bash?
19908
How can I compare numbers in Bash?