Unix Commands Quick Reference

%CODE{bash}% cd put/target/directory/here %ENDCODE% Changes the working directory to whatever path is typed after cd. Without an additional argument, cd brings one back to the home directory.

%CODE{bash}%

%CODE{bash}% find word* %ENDCODE% Locates and gives file names of all files in the working directory containing word in the beginning of the file name. The * represents a wildcard so it can be placed before, after, or both in order to find files that contain the given query in a particular part of the file name.

%CODE{bash}% kill process %ENDCODE% Ends a particular process. Note that you can type killall to end multiple processes that match the name that is input.

%CODE{bash}% ls %ENDCODE% Lists the contents of the working directory. Add -a to include invisible files. Add -l to show more information about each file such as its owner and permission flags.

%CODE{bash}% mkdir directoryname %ENDCODE% Makes a directory with a name specified by the user.

%CODE{bash}% nl yourfile.txt %ENDCODE% Numbers all the lines of a file.

%CODE{bash}% ps %ENDCODE% Lists all process currently running.

%CODE{bash}% pwd %ENDCODE% Prints the working directory path to the console.

%CODE{bash}% rm yourfile.txt %ENDCODE% Deletes a given file.

%CODE{bash}% rmdir yourdirectory %ENDCODE% Deletes a given directory.

%CODE{bash}% source yourfile %ENDCODE% Reads and executes commands from the given file in the current environment.

%CODE{bash}% which yourprogram %ENDCODE% Prints the the full path of the program to the console (note that its directory must be in your $PATH). Adding an -a after which prints all instances of the program.