Extract several lines from large text file
6550
What's the best way to take a segment out of a text file?
47616
Grep in couple thousands files
5212
How to remove duplicate lines inside a text file?
69593
Find files with matched whole lines from a file
32721
Removing lines from text file that contain string at beginning and string at end - and keep one
36616
How Does One Remove Duplicate Text Lines From Files Larger Than 4GB?
10205
Lazy Method for Reading Big File in Python?
81426
How do I grep file paths out of a text file?
22055
How to find files containing two strings in different lines
105275
What is the efficient way to find some pattern in a big text?
117829
Extract random sample of N lines based on pattern
3374
Determine the number of lines within a text file
147031
Split a large file into smaller files and then integrate them to get the original file
59985
split a large file to new file with unique file names
43864
Splitting very big numbers over several lines
54896
Break a long command to multiple lines
20432
Processing lines from one text file to another