The command “ cat” prints the contents of /dev/null and is expected to show nothing. Whatever you save to the /dev/null device will be permanently lost that’s why it is called the black hole of Linux. The command /dev/null is an electronic document with file-handling procedures. Using echo Command to Empty a Log File in LinuxĮcho is a simple command that prints its arguments on display, like the example shown below:įurthermore, you may use the echo command as follows:Įcho "" > filename 4.
You can also run this command to delete a file: This command demonstrates the easiest approach to delete a file.Īlthough the preceding command is unique to Bash Shell, you may use the following command for other shells: If the file is not in use, Bash will recognize it. Clear Log Files Using the Command :> or >. For instance, setting " –s 0" means moving the previous bytes to 0 bytes, and the file content will be empty when viewed. The command –s is used to adjusting the size in bytes. The truncate command is the safest way to empty a file in Linux. Delete Log Files Using the truncate Command Where can I find the Linux command to delete an entire file? How can I remove everything from a file without erasing it? Let’s find the answers here! 1. When you remove a file's contents, the file remains intact no need to create a new empty file. The file's timestamp and other permissions will be changed, rendering the file unrecognizable. However, the wisest course of action is to refrain from doing so. One unpleasant alternative is to delete and replace the file with a new one. It often occurs while working with very big log files. 03 FAQs 6 Ways to Clear Log Files in LinuxĪt times, it may be necessary to completely erase the contents of a hard disk.
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