Unix commands
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| Terminates the current Shell | exit
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| informs the shell you want to end the login session | logout
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| changes the working directory to Dir | cd Dir
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| Changes the current directory to the user's home directory | cd
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| Lists the contents of the current directory | ls
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| Creates a directory named Dir | mkdir Dir
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| Displays the full pathname of current directory | pwd
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| Outputs a list of previously entered command lines | history
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| Re executes the most recent command line | !!
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| Re executes the most recent command number ## | !##
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| Re executes the last command that begins with xxx | !xxx
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| tells the shell to interpret newname as command | alias newname command
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| advance one screen | spacebar
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| advance one line | ENTER
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| Go back to top of the file one screen | b
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| go forward to the first target | /xxx
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| Go to the next target | n
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| outputs file1 from beg to end | cat file1
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| outputs the first 10 lines or the last 10 lines | head filename or tail filename
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| counts the lines words and chars in a filename | wc filename
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| copies file1 to file2 | cp file1 file2
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| renames file1 as file2 | mv file1 file2
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| deletes filename | rm filename
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| Asks you if you want to delete filename | rm -i filename
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| checks the spelling in filename | spell filename
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| displays users currently on | who
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| print filename on the line printer | lp filename
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| sends the output of the utility to the file filename | utility > filename
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| appends the output of the utility to the end of the file filename | utility >> filename
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| Displays manual | man
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| displays a lines in the table of contents containing any word listed in words | man -k words
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| Changes the users passwd | passwd
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| lists all the contents of the current directory | ls
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| lists a long listing of all te contents of current directory | ls -l
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| concatenates file1 and file2 outputs 1 then 2 | cat file1 file2
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| searches for lines containing a certain word in filename | grep word filename
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| counts the line, words, and chars in filename | wc filename
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| prints the #th field of file | awk '{print $#}' file
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| displays lines in a file in sorted order | sort filename
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| checks spelling in a filename | spell filename
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| removes permission to read file | chmod -r filename
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| Gives permission to read file | chmod +r filename
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| grants execute permission on the file | chmod +x filename
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| removes execute permission on the file | chmod -x filename
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| executes a variable | $var
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| matches all filename | * splatt
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| interprets the next char as an ordinary char without speical meaning | \
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| Turns off interpretation of all characters between the single quotes . seen as ordinary char | ' '
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| Lists processes | ps
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| clears terminal screen | clear
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| location of utility name | which utitliyname
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| ypcat | network database files the way cat does local
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| reads arguments and writes them to output | echo
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| Moves cursor back | ?
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| moves cursor forward | /word
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Fufuberrybunny
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