The snippet library.
Small, practical examples. Search by task or narrow things down below.
Set owner-only file permissions
Linux Commands: Use chmod 600 to allow only the owner to read and write a file.
Linux Commands✓ Tested
Show line numbers beside matches
Linux Commands: Use grep -n so a result identifies its position in the source file.
Linux Commands✓ Tested
Show the current directory
Print the absolute path of your current working directory before running commands that depend on relative paths.
directory✓ Tested
Show the first lines of a file
Read only the first three lines of a text file, useful for checking a header or previewing a large log.
head✓ Tested
Show the Linux distribution version
Read the distribution-provided operating system name and version from os-release.
os✓ Tested
Sort a small set of lines
Linux Commands: Sort a small set of lines using GNU/Linux commands in an empty practice directory.
Linux Commands✓ Tested
Sort and deduplicate lines
Sort lines alphabetically and remove duplicate lines in a predictable C locale.
sort✓ Tested
Sort lines by numeric value
Linux Commands: Use sort -n so 10 sorts after 2 instead of before it.
Linux Commands✓ Tested
Sort records by a delimited field
Linux Commands: Select the exact sort key to avoid including later columns.
Linux Commands✓ Tested
Sort values in descending order
Linux Commands: Combine numeric sorting with reverse order.
Linux Commands✓ Tested
Sort version-like labels naturally
Linux Commands: Use GNU version sort to compare embedded digit runs numerically.
Linux Commands✓ Tested
Split a file into fixed line-count pieces
Linux Commands: Use numeric suffixes for predictable filenames when splitting a large text file.
Linux Commands✓ Tested