How do I empty a file in Unix?

How do you delete the contents of a file in Unix?

Deleting files (rm command)

1. To delete the file named myfile, type the following: rm myfile.
2. To delete all the files in the mydir directory, one by one, type the following: rm -i mydir/* After each file name displays, type y and press Enter to delete the file. Or to keep the file, just press Enter.

How do you delete a file in Linux?

Type the rm command, a space, and then the name of the file you want to delete. If the file is not in the current working directory, provide a path to the file’s location. You can pass more than one filename to rm . Doing so deletes all of the specified files.

How do I delete all contents of a file in Linux?

Linux Delete All Files In Directory

1. Open the terminal application.
2. To delete everything in a directory run: rm /path/to/dir/*
3. To remove all sub-directories and files: rm -r /path/to/dir/*

How do I empty a log file?

How to clean log files in Linux

1. Check the disk space from the command line. Use the du command to see which files and directories consume the most space inside of the /var/log directory. …
2. Select the files or directories that you want to clear: …
3. Empty the files.

How do you open a file in Linux?

There are various ways to open a file in a Linux system.
…
Open File in Linux

1. Open the file using cat command.
2. Open the file using less command.
3. Open the file using more command.
4. Open the file using nl command.
5. Open the file using gnome-open command.
6. Open the file using head command.
7. Open the file using tail command.

How do I delete a file without confirmation in Linux?

Remove a file without being prompted

While you can simply unalias the rm alias, a simpler and generally used method to remove files without being prompted is to add the force -f flag to the rm command. It is advisable that you only add the force -f flag if you really know what you are removing.

How do I delete a file using command prompt?

To do this, start by opening the Start menu (Windows key), typing run , and hitting Enter. In the dialogue that appears, type cmd and hit Enter again. With the command prompt open, enter del /f filename , where filename is the name of the file or files (you can specify multiple files using commas) you want to delete.

How do you create a file in Linux?

How to create a text file on Linux:

1. Using touch to create a text file: $ touch NewFile.txt.
2. Using cat to create a new file: $ cat NewFile.txt. …
3. Simply using > to create a text file: $ > NewFile.txt.
4. Lastly, we can use any text editor name and then create the file, such as:

How do I erase everything on Ubuntu?

WIPE

1. apt install wipe -y. The wipe command is useful to remove files, directories partitions or disk. …
2. wipe filename. To report on progress type:
3. wipe -i filename. To wipe a directory type:
4. wipe -r directoryname. …
5. wipe -q /dev/sdx. …
6. apt install secure-delete. …
7. srm filename. …
8. srm -r directory.

How do I empty a file in Ubuntu?

Permanently delete a file

1. Select the item you want to delete.
2. Press and hold the Shift key, then press the Delete key on your keyboard.
3. Because you cannot undo this, you will be asked to confirm that you want to delete the file or folder.

How do I delete all folders?

To remove a directory and all its contents, including any subdirectories and files, use the rm command with the recursive option, -r . Directories that are removed with the rmdir command cannot be recovered, nor can directories and their contents removed with the rm -r command.