When you type the command. If directory project2 already existed before the mv command was issued,. You can use the cp command to create a duplicate copy of a directory and its contents.
To copy directory project1 to directory proj1copy, for example, you would type. Use the command rmdir to remove an empty directory. Multiple empty directories may be removed by listing them after the command:.
If you are sure that you want to remove the directory and all the files it contains, use the command. If dir2 exists, moves dir1 inside dir2. If dir2 does exist, copies dir1 inside dir2. Use with caution. Skip to main content. Create, Copy, Rename, and Remove Unix Files and Directories This document lists commands for creating, copying, renaming and removing Unix files and directories.
What Are Unix Files and Directories? Naming Unix Files and Directories Each file and directory has a name. This is just a test. For example, to create an exact copy of the file called firstfile, you would type: cp firstfile secondfile This results in two files with different names, each containing the same information. If you create a different file called thirdfile and then type the following command: cp thirdfile firstfile you will find that the original contents of firstfile are gone, replaced by the contents of thirdfile.
Renaming a File Unix does not have a command specifically for renaming files. To change the name of a file, use the following command format where thirdfile and file3 are sample file names : mv thirdfile file3 This command results in the complete removal of thirdfile , but a new file called file3 contains the previous contents of thirdfile.
Article Summary. Method 1. If not, log into the system on which you want to create a file through the console. Use cd to change to the desired directory. If you're already in the directory where you'd like to create the file you can skip this step.
Replace newfilename with the desired file name. This creates a new blank file with that name in the current directory. Method 2. Replace newfilename with whatever you'd like to call your new file.
This opens a new blank line. Type some text. Anything you type here will be added to the file. You'll need to be on a blank line to finish the cat command.
This saves the file to the current directory with the name you entered. Method 3. You'll want to be in the directory where you'd like to store your new file before opening the text editor.
This opens the Vi or Vim, depending on the version of Unix you're using text editor. To edit a specific text file with Vi, type vi filename' instead.
Press i to enter input mode. Vi has two modes—insert mode and command mode. You must be in input mode to type text into the new file. Search Forums. Show Threads. Show Posts. Insert text into a file using shell script. Registered User. Join Date: Jan Hi, I need to insert "Hello World" text into a file called hai. Kindly help me. For eg: If I open the file hai.
Join Date: Sep You can redirect the output of echo to file. Code :. Join Date: Mar That said this look very much homework Thanks for all your replies. Could be explain me with a simple example of EOF in shell. Asked 8 years, 8 months ago. Active 8 years, 8 months ago. Viewed times. Improve this question. Mohammed Mohammed 15 2 2 bronze badges.
Are you asking help with sed command, or help with passing parameters in C to system call? If sed is not the problem, please add to question the command line command which does what you want, and ask "how to do this system call from C". Or if your problem is creating a command line command which does what you want, then ask that, instead of asking a C question.
So what is the problem with your current code? Add a comment.
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