-index.md

Linux/Unix Snippets

Table of Contents

1. Sort the Contents of a File
2. Find Files
3. Count Files

1.md

Sort the Contents of a File

This command sorts the lines in the input.txt file:

sort ./input.txt

This command sorts the lines in the input.txt file and removes duplicates:

sort ./input.txt | uniq

This command sorts the lines in the input.txt file, removes duplicates and writes the output in the file:

sort ./input.txt | uniq > output.txt

2.md

Find Files

Find files in the current directory and its subdirectories with a name containing the specified string.

find . -name "*string*" -print

Find files in the current directory (not-recursive) with a name containing the specified string.

find . -maxdepth 1 -name "*string*" -print

Find files in the current directory (not-recursive) with a name containing the specified string, but avoid files with a name containing "readme".

find . -maxdepth 1 -name "*string*" ! -name "*readme*" -print

3.md

Count Files

Count files in the current directory.

find . -type f | wc -l

To include directories (and symbolic links) in the count, remove the -type f.

It's possible this command will overcount if filenames can contain newline characters.