Case-Insensitive Comparing between Files
By default, `diff`
is case-sensitive. To perform a case-insensitive comparison, use the `-i`
option:
The diff
command is then used to compare these files with the -i
option, which makes the comparison case-insensitive.
diff -i file1.txt file2.txt
2d1
: This indicates a change in line 2 of the first file (file1.txt
). Thed
stands for delete, and it says to delete line 2 from the first file.< mv
: This line signifies the content of the line to be deleted. In this case, it is “mv.”
3a3
: This indicates an addition in line 3 of the first file (file1.txt
). Thea
stands for add, and it says to add a line at position 3.> diff
: This line represents the content to be added. In this case, it is “diff.”
In summary, the output tells us that to make both files identical (ignoring case), we need to delete the line containing “mv” from the first file (file1.txt
) and add the line “diff” at the same position. The diff
command, with the -i
option, allows for a case-insensitive comparison, making it consider “mv” and “MV” as the same during the analysis.
How to Compare Files Line by Line in Linux | diff Command
In the world of Linux, managing and comparing files is a common task for system administrators and developers alike. The ability to compare files line by line is crucial for identifying differences, debugging code, and ensuring the integrity of data. One powerful tool that facilitates this process is the diff
command. In this article, we will explore how to use the diff
command to compare files line by line in Linux.
Table of Content
- Basic Syntax of diff Command
- Options Available in diff Command
- Pratical Implementaion of How to compare files line by line in Linux? :
- Comparing Two Files
- Deleting a Line in Files using diff Command
- Viewing Differences in Context Mode
- Viewing Differences in Unified Mode
- Case-Insensitive Comparing between Files
- Displaying diff Version