UNIX Commands Table

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UNIX® Commands Table

Command name: cd

Command properties
Your response
Common parameters
-L force symbolic links to be followed
-P Use the physical directory structure without rolling symbolic links
Primary use
This command is used when chaining the directories are required
Common results (including errors)
Change the current directory. IF an error message appears it will state directory does not exist.

Command name: ls

Command properties
Your response
Common parameters
-a do not ignore entries starting with “.”
-d list directory entires instead of contents, and do not deference symbolic

Primary use
This command is used to list the files with in a directory.
Common results (including errors)
Display everything with in that directory

Command name: mkdir

Command properties
Your response
Common parameters
-m set file mode
—help display a help message
Primary use
If the directory does not exist then mkddir creates it.
Common results (including errors)
If there is an error then a error message would be sent out.

Command name: rm

Command properties
Your response
Common parameters
-f ignore nonexistent files and never prompt before removing
-i prompt before every removal.
Primary use
Removes specified file. By default it will not remove directories
Common results (including errors)
Used to disgard files and directories.

Command name: more

Command properties
Your response
Common parameters
-num set the number of lines that makes up a screenful
-d this will prompt the user with the message press space to continue.
Primary use is a filter for paging through text one screen at a time.
Common results (including errors)
Allows the user to read only on specific files not allowing them to change the file.

Command name: du

Command properties
Your response
Common parameters
-a write counts for all files
-c display a grand total.
Primary use
Estimates and displays the disk space being used
Common results (including errors)