The snippet library.
Small, practical examples. Search by task or narrow things down below.
Pass a variable to one command
Linux Commands: Use env to supply a child process value without setting it permanently in the parent shell.
Linux Commands✓ Tested
Pass filenames with spaces through xargs
Linux Commands: Use null delimiters end to end instead of splitting filenames on whitespace.
Linux Commands✓ Tested
Prevent expansion with single quotes
Linux Commands: Prevent expansion with single quotes using GNU/Linux commands in an empty practice directory.
Linux Commands✓ Tested
Print a first terminal message
Linux Commands: Print a first terminal message using GNU/Linux commands in an empty practice directory.
Linux Commands✓ Tested
Print a selected range of lines
Linux Commands: Use sed -n with a line address to suppress other output.
Linux Commands✓ Tested
Print only duplicate values
Linux Commands: Use uniq -d after sorting to report each repeated value once.
Linux Commands✓ Tested
Print only the matching portions
Linux Commands: Use extended regex and -o to extract digit sequences.
Linux Commands✓ Tested
Print separate arguments safely
Linux Commands: Print separate arguments safely using GNU/Linux commands in an empty practice directory.
Linux Commands✓ Tested
Print the final lines of a file
Linux Commands: Use tail -n for a fixed-size suffix of a log.
Linux Commands✓ Tested
Read a byte prefix
Linux Commands: Use GNU head -c for a fixed number of bytes, independent of line boundaries.
Linux Commands✓ Tested
Read a byte suffix
Linux Commands: Use GNU tail -c to extract a fixed-size ending.
Linux Commands✓ Tested
Read an ISO week date
Linux Commands: Use ISO week year, week number, and weekday directives together.
Linux Commands✓ Tested