Linux/Unix Snippets

Table of Contents

Raw

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

Raw

2.md

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

Raw

3.md

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.

Raw

4.md

Copy all files (including hidden ones) from source/ to destination/, excluding the .git directory.

rsync -av --progress source/ destination/ --exclude='.git'