UNIX COMMAND

General Commands

• ls – (List Schema) This command will list the contents of your current directory. It only returns files that are not (.) "dot" files.
• mkdir - (Make Directory). With this command will create a subdirectory in your home directory.
• cd - (Change Directory) With this command you can move from your current working directory to a new directory.
• pwd - (Print Working Directory). The pwd command, when evoked, will display the absolute pathname for the directory you are currently in..
• cp – (copy). This command will copy a file from one directory to another.
• mv – (Move) this allows you to move a file from one place to another
• rm - (Remove) This command is used to delete a file.
• rmdir – (Remove Directory) This command is used to delete directories.
• clear - Clear the terminal window.
• cat – (Concatenate) Can be used to display the contents of a file on the screen.
• more – The more command is used to view files just like cat except that the more command lets you view the information 1 page at a time.
• head – The head command writes the first 10 lines of a file to the screen.
• tail - The tail command writes the last ten lines of a file to the screen.
• grep – The grep command will search a file for specified words or patterns and prints out each line in which the word or pattern occurs.
• wc – (Word Count) this gives a word count for a specific filename.
• Ping – allows to determine if a hosts Ethernet configuration is good.
• Traceroute – allows you see the path that a packet must travel to get to its destination.
• Ns lookup - allows you to invoke DNS to lookup a host or IP address.
• Whois – Script that Queries the InterNic Database for information on a particular host.
• chmod – Change access modes on files.
• csplit - Break files at specific locations.
• file – Determine a files type.
• install – Set up system files.
• ln – Create filename aliases.
• rcp – Copy files to a remote system.
• split – Splits files evenly.
• banner – Make posters from words.
• pc – Precision Calculator.
• cal – Display Calendar.
• calendar – Check for reminders.
• kill – Terminate a running command.
• nice – Reduce a jobs priority.
• nohup – Preserve a job after logging out.
• passwd – Set a password.
• script – produce a transcript of your login session.
• spell – report misspelled words.
• su – Become a superuser.