Useful tips for everyday
How do I launch Kdenlive? Enter your admin password and you should see the application installing. Now that Kdenlive is installed we can start it…
How to add a kernel boot parameter in Grub? Find the line starting with GRUB_CMDLINE_LINUX_DEFAULT and append foo=bar to its end. For example: Save the…
How do you check if a file exists in a Bash script? In Bash, you can use the test command to check whether a file…
What is Linux Device Mapper? The device mapper is a framework provided by the Linux kernel for mapping physical block devices onto higher-level virtual block…
How to count number of matches in grep? grep’s -o will only output the matches, ignoring lines; wc can count them: grep -o ‘needle’ file…
How do I check Solaris memory? On Solaris, you can use the command prtconf to determine how much physical memory the computer has. This command…
How do I fix disk quota exceeded? This message indicates there is no space left in ether a home directory or a group disk. When…
Why is Task Manager CPU usage so high? The process is used to monitor a large number of systems on a given network, and if…
How do I run tty? You can use function keys Ctrl+Alt with function keys F3 to F6 and have four TTY sessions open if you…
What happens if I remove the cache device from bcache? I used bcache only in a writethrough configuration, and IIRC even then bcache doesn’t like…