Unix commands in terminal mac

UNIX: Working the Command Line in OS X

This makes a copy of myfile. If you want to copy a file and place it in another directory, use the following:. To rename a file, use the mv command:.

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This renames the file myfile. The following moves the file myFile.

Finding the Command Line

For this, you can use either cat , more , or less :. Any one of the following will assign read-only permission to myFile. The chmod command has many options; for more information, see its manpage man chmod. To zip a file or directory, use the zip command, as follows:. This zips up the file and places the myFile. Use the unzip command with the - l option to list the contents of a Zip file, as follows:. This shows that there is one file in myFile.

This unzips the file and places its contents in the current directory.

If a file with the same name is already in that directory, you will be asked what to do:. A to replace all the files with similar names. N to not replace any of the files. To archive a file or directory, use the Unix tape archive command, tar , as follows:. Verbose; this option prints the filenames onscreen as files that are added to or extracted from the archive. To peek inside a tarball to see the files it contains, use the tar command with the tvfz options:. The - t option is used to print the names of the files inside the tarball. To unpack a tarball a.

In the line of text you typed above, the command was "echo" and the argument was the text you wanted Terminal to display. You have just used the command line under Mac OS X. The echo command is certainly simple, but it demonstrates basic command syntax and how Terminal works. This is a way of showing, as mentioned above, that the previous command has completed. In the following series of commands, you will:. If you recall from looking at the Finder window, Home contains a few folders.

Type the following the first letter is lowercase L, not the digit 1 :. The ls command lists the contents of a directory. Terminal displays something like the following:.

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  • Next, Customize the Terminal.

This is a list of everything in your Home folder it may be different depending on the contents of your Home folder. You can find out by typing the following:. The -F is an option for the ls command; it is also case-sensitive: -F is not the same as -f. Options tell certain commands to do things in a slightly different way. The slashes here show us that these are directories. If any of the above items were files, there would be nothing after their names. Type the following:. The mkdir command makes new directories. The cd command changes the current working directory.

After running this command, the prompt changes to show that we are now in the Test directory:. Type this:.

A Mac User’s Guide to the Unix Command Line, Part 1

So we now have a new, empty, file called testfile sitting in the Test directory, just waiting for data to be put into it. Writing Text to a File — Since our file is doing nothing, we might as well write something to it. How about writing Hello [username]! To do so, we can use the echo command that we learned above.

This command tells Terminal to echo the text Hello [username]! Note that you have three files and two directories. Moving and renaming are the same thing.

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See cd. The first command removed a single file.

How to Use Basic UNIX Commands to Work in Terminal on Your Mac - dummies

However, a directory must be empty before it can be removed. Some Terminal basics are here and here. Install the CocoaPods library by typing in the following stream: sudo gem install cocoapods.