Have a Good Command

In this chapter, we will cover the following recipes:

• Concatenating with cat
• Recording and playing back terminal sessions
• Finding files and file listing
• Playing with xargs
• Translating with tr
• Checksum and verification
• Cryptographic tools and hashes
• Sorting unique and duplicate lines
• Temporary file naming and random numbers
• Splitting files and data
• Slicing filenames based on extensions  
• Renaming and moving files in bulk
• Spell–checking and dictionary manipulation   
• Automating interactive input
• Making commands quicker by running parallel processes
• Examining a directory, files and subdirectories in it