Grep: how to add an "OR" condition?
71826
How do I grep for multiple patterns with pattern having a pipe character?
23849
Test condition in if command
20911
Grep word boundaries
125932
How to grep for text in a file and display the paragraph that has the text?
13444
Can grep show only words that match search pattern?
50456
What does the 'grep' command do?
101892
Alternatives to "and/or"?
57165
How do I grep lines ending on a specific expression
52106
bash if -a vs -e option
53709
find command: -or option doesn't work
150490
Using grep to find a string
79025
grep for expression containing variable
50708
How to use OR condition in a JavaScript IF statement?
4982
How to combine multiple conditions to subset a data-frame using "OR"?
56072
How do I compare two string variables in an 'if' statement in Bash?
66648
In what cases should I use a comma before "or"?
151275
grep. Find multiple AND patterns in any order using single condition