Recently, I had the need to use it on a different computer, and instead of just a one-off copy/paste, I actually added it to my main set of portable commands, phxutils. There are also ways to rename multiple files in the command line. Setting your domain, assuming you have a resolvconf binary: In /etc/resolvconf//head, you'll add then line domain (not your FQDN, just the domain name). ![]() Then, run sudo hostname (cat /etc/hostname). Its primary purpose is moving files and folders, but it can also rename them, since the act of renaming a file is interpreted by the filesystem as moving it from one name to another. You can rename individual files in this way. You'll want to edit /etc/hostname with your new hostname. A simple way to rename files in Linux is with the mv command (shortened from move). Replace 'OLDNAME' and 'NEWNAME' with the current file name and the name that you wish to rename it with, respectively. I actually wrote that command for this specific use case, which I encounter frequently and have been using it as a bash/ zsh function for a long time, which I named chext: chext() /")" In the terminal, you can use the mv command to rename a file in Ubuntu: mv OLDNAME NEWNAME. You can also rename a file from the propertieswindow. Type the new name and press Enteror click Rename. To rename a file or folder: Right-click on the item and select Rename, or select the file and press F2. I realize OP tagged bash specifically, and for that reason, the accepted answer will work just fine, but if you wanted to use this command in a shell script on a system using sh or dash, you could use the version I posted above, which utilizes any version of sed (GNU/BSD/anything), and will work just fine, while not relying specifically on bash itself. Rename a file or folder As with other file managers, you can use Filesto change the name of a file or folder. You can go here to see all the reasons why this method is better than all the other answers, but basically, the accepted answer is not POSIX-compliant since it relies on bash parameter expansion. ![]() It will replace all special characters,except. I am posting this because I have not seen another answer that details this method and why it could potentially be superior to the accepted answer. Rename Files with the mv Command The Linux mv (move) command is used to move files and directories from the terminal. The script will rename every file and directory in the current directory. Mv - "$f" "$(echo "$f" | sed "s/\.old_ext$/.new_ext/")" You can use the built-in Linux command mv to rename files.
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