Hdi2u S04

Listing files and directories

• ls is the most common command of all. It lists files and folders in your current location.
• By default it requires no arguments and will list in alphabetical order
• Although it has options, using it with wild card (especially the asterisk) can help control it

Some practice

• List all the files in the directory hdi2u_files. that start with the letters tes

ls tes*

• List all the files in your directory that start with tes, and end in 1.embl, 2.embl or 3.embl

ls tes*[123].embl

Questions

• Prefix the asterisk wildcard with a dot, what do you get?
• Try the -l option, what type to listing are you getting?
• What does it tell you about the whatsinaname.fasta?
• Specify the directory to ls, did something unexpected happen?
• ls has what should be called a companion command: pwd. Try it.
• If ls is the most commmon command, what might the most common typo be?