Welcome to bashoneliners.com, a curated collection of practical and well-explained Bash one-liners, snippets, tips and tricks. We aim to make each published one-liner to be of high quality: useful, easy to read, follows best practices, with clear, detailed, accurate explanation. These one-liners should help you automate tasks, troubleshoot problems, whether it be in system administration, file management, networking or programming.
is_int() { [[ $1 =~ ^[0-9]+$ ]]; }
expected_checksum=...; sha512sum path/to/file | { read actual_checksum _; [ "$actual_checksum" = "$expected_checksum" ] && printf "\033[0;32mValid\n" || printf "\033[0;31mInvalid\n"; }
perl -ne 'print tr/,//, "\n"' < file.csv | sort -u