Grep display both matched and umatched lines
36905
Convince grep to output all lines, not just those with matches
129249
How to use grep and cut together?
6434
grep a file, but show several surrounding lines?
139542
How to search multiple search patterns from a file with grep
131236
what's wrong with my grep command?
36074
Grep lines between start & end pattern even end pattern in next file
140097
R grep: is there an AND operator?
120998
grep'ping files for multiple strings (not necessarily on the same line)
148417
How do i find out lines of a file that are not present in another file?
74038
How do I grep for multiple patterns on multiple lines?
16874
Limit grep context to N characters on line
759
How do I match any character across multiple lines in a regular expression?
69593
Find files with matched whole lines from a file
14398
How to grep-inverse-match and exclude "before" and "after" lines
77814
How to open or list all files whose name matches two patterns in Bash
60311
Compare two files: lines present in one, not in the other, by one column comparison
125932
How to grep for text in a file and display the paragraph that has the text?