grep regex and variables
158457
Using | pipe character from a $variable makes it treat as just another argument in bash; how to escape it?
158360
How can I "grep" patterns across multiple lines?
23494
How to make  grep display only the matching regexp?
119908
nginx httpMapModule regex variables
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grep and escaping a dollar sign
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use regular expression in if-condition in bash
29334
sed substitution with Bash variables
123684
Test for non-zero length string in Bash: [ -n "$var" ] or [ "$var" ]
95065
Grep -H not always returning file path when two matches are on the same line
129249
How to use grep and cut together?
115783
Losing newline after assigning grep result to a shell variable
22147
JavaScript regex pattern concatenate with variable
140827
Bash regex =~ operator
65125
Bash Brace Expansion & Variables
81426
How do I grep file paths out of a text file?
131236
what's wrong with my grep command?
26063
How to use a variable inside a regular expression?