Results for “command”
Small, practical examples. Search by task or narrow things down below.
Extract a field from simple delimited text
Linux Commands: Extract a field from simple delimited text using GNU/Linux commands in an empty practice directory.
Linux Commands✓ Tested
Extract a filename from a path
Linux Commands: Use basename with an explicit suffix when removing a known extension.
Linux Commands✓ Tested
Extract a parent directory from a path
Linux Commands: Use dirname without needing the path to exist.
Linux Commands✓ Tested
Filter lines by literal text
Linux Commands: Filter lines by literal text using GNU/Linux commands in an empty practice directory.
Linux Commands✓ Tested
Find empty regular files
Linux Commands: Use the empty predicate with a file type constraint.
Linux Commands✓ Tested
Find files larger than a byte threshold
Linux Commands: Use the c suffix for exact byte units with GNU find size tests.
Linux Commands✓ Tested
Find lines common to two sorted files
Linux Commands: Use comm -12 to suppress the two columns of unmatched lines.
Linux Commands✓ Tested
Find lines unique to the first sorted file
Linux Commands: Use comm -23 to retain only records absent from the second input.
Linux Commands✓ Tested
Format a known UTC timestamp
Linux Commands: Use GNU date -u and an explicit input offset to avoid local timezone dependence.
Linux Commands✓ Tested
Format a zero-padded numeric label
Linux Commands: Use printf formatting instead of concatenating a variable number of zeroes.
Linux Commands✓ Tested
Generate a stepped sequence
Linux Commands: Use seq when a command pipeline needs a numeric sequence.
Linux Commands✓ Tested
Handle a filename that begins with a dash
Linux Commands: Use -- to terminate command options before an unusual filename.
Linux Commands✓ Tested