Videos, and the schedule Review: Logging into isoptera and looking around User commands: who w last finger File tree tour: Tour of each directory on / Shortcuts: ~ - cd with nothing after pushd popd To print out a file: cat for text files Other files vary Couple other fast things: Up arrow for previous command tab for autocomplete ctrl+r to search previous commands Long and short options Example: weather Print metric with both -m and --metric Forcast and not Taking these in a program: Example from Python Pipes grep can search files What if it was going to read from 0 instead? We can search the output of a command that way! Example head, tail, ifconfig and /sbin