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Command Parameters
Most unix commands have parameters or options that affect what they do. You
can find then by looking at the "man" pages for them. Type man
commandname to display them.
Here are some (but not all) useful parameters for ls and
chmod.
ls
| -l | long listing |
| -a | show hidden files |
| -F | Flag filenames with: / for directories, * for executables, @ for symbolic links |
| -R | Recursively list subdirectories |
| -d | Displays the names of directories without displaying their contents |
chmod
| -R | Recursively change permissions (watch it with this one!) on all files and directories that match the pattern. |