Open a terminal window and go to your MP3 folder. Run the following command (you might have to install eyeD3 first for our linux distribution.) :
eyeD3 *.mp3 --remove-all-images
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Zentyal – How to restart services
open an SSH session to your server and use the following command:
sudo zs samba restartCheck if it is running:
sudo zs samba statusReplace ‘samba’ with the service you want to restart.
If you get the error message “The trust relationship between this workstation and the primary domain failed”, here is how you can fix it.
Open a PowerShell as Administrator and enter the following commands:
Test-ComputerSecureChannelThis will show true or false. If it shows false, enter the following commands (replace domain.lan with your domain name, adminaccount with your administrator username, and domainserver with the name of your domainserver)
$credential = Get-Credential domain.lan\adminaccount
Reset-ComputerMachinePassword -server domainserver
-credential $credentialThis should fix the problem without having to leave and rejoin the domain.
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How to get into your laptops Bios
| Brand | Key |
| Lenovo (laptops, excl ThinkPads) | F2 or FN+F2 |
| Lenovo (desktops) | F1 |
| Lenovo (ThinkPads) | Enter, followed by F1 |
| Dell | F2 or F12 |
| HP | F1, F10 or DEL |
| ASRock | F2 or DEL |
| ASUS | F2 |
| Acer | F2 or DEL |
| Gigabyte | F2 or DEL |
| MSI | DEL |
| Samsung | F2 |
| Toshiba | F2 |
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Windows changes my printer ports. Help!?
Windows 10 (and presumably Windows 11 as well) has the very annoying ‘feature’ of thinking it can manage your printer better than you can yourself.
If you printer stops working for some inexplicable reason, then the changes are great that Windows had decided to change your printer port to a WSD port, even if you installed it with an IP port.
To avoid this behaviour, delete the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Monitors\WSD Port
Suppose you have a variable containing a directorypath:
#!/bin/bash
directorytouse="/home/myhome/whateverdirectory/"If you try to test in your bash script if the directory exists, then it will fail because of the trailing slash:
if [ ! -d "${directorytouse} ]
then
echo -e "directory does not exist!"
fiThe easiest way to remove this / if it is present is to use shell parameter expansion:
if [ ! -d "${directorytouse%/}" ]
then
echo -e "directory does not exist!"
fiThis will get rid of the trailing slash if there is one. If there is no trailing slash present, then nothing will happen.
If you have ever used cat or tail to accidentally show a binary file, you will have noticed your terminal show graphical garbage instead of readable text. As shown in the screenshot below:
You will find several suggested fixes on the internet for this, including:
- type CTRL-C a few times to make sure you are on a new line and then enter ‘reset‘ and tap enter.
- output the ASCII SI (shift in) character, decimal value 15. This can be entered with CTRL+O and should work if the reset command doesn’t work. Just enter ‘echo CTRL+V CTRL+O’ on the command line
- enter the command ‘stty sane’, followed by ‘tput rs1’ on the command line.
The only one that worked for me is entering the following (blindly, since you can ‘t read what your are typing) on the terminal prompt:
echo -e "\033c"A good practice is to define an alias in your startup script with the following command:
alias resetterminal='echo -e "\033c"'Next time you have this problem, you can then type (blindly) ‘resetterminal’ to fix the problem.
If your Vi or Vim session is hanging and is not responding to anything, then it might be because you pressed CTRL+S accidentally (out of habbit). To fix this, just press CTRL+Q to unblock the session.
If your wifi card is not available after booting your Dell XPS-15 laptop (with Ubuntu 20.04 or 22.04), or your external monitor refuses to display anything, please try the following:
start up your laptop without your power supply plugged in, connect with wifi, and/or your external monitor and only then plug in your power supply.
This fix works everytime for me.
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Ubuntu: reset monitor settings to default
If you want to reset your monitor settings to default through the terminal (your second screen is broken and the settings are ‘shown’ there and you don’t want to restart your laptop), you can use the following command:
xrandr -s 0