Check target file for duplicate entry before copy data from source file
26517
Is there a tool to get the lines in one file that are not in another?
127314
How to insert the content of a file into another file before a pattern (marker)?
60311
Compare two files: lines present in one, not in the other, by one column comparison
49250
Can the C preprocessor be used to tell if a file exists?
41391
How to perform replacements defined in one file on another file
103743
Compare two similar directories and list differences between files
93912
How to skip the for loop when there are no matching files?
9472
Detecting whether a file is locked by another process (or indeed the same process)
14151
Checking for duplicates in a vector
92406
Require duplicates to be imported in Shotwell
76043
Remove entire row in a file if first column is repeated
27245
How to find (and delete) duplicate files
90913
Compare two files with first column and remove duplicate row from 2nd file in shell script
97526
How to confirm that a file has copied to a new disk without any errors?
90399
Carrying counters over to another file
3358
What's the best way to check if a file exists in C?
84894
How to find and delete duplicate files within the same directory?