Check file status on Linux with the stat command All the information you need about any file or file system is just one Linux command away.
Check free disk space in Linux with ncdu Get an interactive report about disk usage with the ncdu Linux command.
Short option parsing using getopt in C Use the command line to make your programs more flexible by allowing users to tell them what to do.
Parse command-line arguments with argparse in Python Use the argparse module to enable options in your Python applications.
Schedule a task with the Linux at command The at command is the Linux terminal's method of allowing you to schedule one-time jobs for a specific time and date.
Parse command options in Java with commons-cli Let your users modify how your Java application runs with command-line options.
