What does $# mean in shell?
What does $# mean in shell?
Unix & Linux
How to switch between users on one terminal?
I’d like to log in as a different user without logging out of the current one (on the same terminal). How do I do that?
Why do most systemd examples contain WantedBy=multi-user.target?
I have read what is multi-user.target and the systemd documentation, which states that the multi-user.target is a special target. Further, a lot of the systemd examples contain that line.
How can I remove the BOM from a UTF-8 file?
I have a file in UTF-8 encoding with BOM and want to remove the BOM. Are there any linux command-line tools to remove the BOM from the file?
How does _netdev mount option in /etc/fstab work?
I’d like to know what is the exact mechanism (implementation) used to defer mounting until after network interface is up when one uses _netdev option in /etc/fstab?
Does systemd alter this behavior?
Also, what does delay_connect option to sshfs provide what _netdev does not?
Lightest way to run GUI applications in Linux?
I realized I can use a window manager without a desktop environment and don’t lose any functionality I care about. Applications still work fine, I can still arrange application windows as I please. This pretty much eliminates the need for lightweight desktop environments such as LXDE and XFCE for use cases like mine. I wonder … Read more
How to recover a crashed Linux md RAID5 array?
Some time ago I had a RAID5 system at home. One of the 4 disks failed but after removing and putting it back it seemed to be OK so I started a resync. When it finished I realized, to my horror, that 3 out of 4 disks failed. However I don’t belive that’s possible. There are multiple partitions on the disks each part of a different RAID array.
Insert text from file inline after matching pattern in another file
I’m trying to take the contents of a file and insert it after a matching pattern in another file using sed. My question is very similar to this question, but I wish to insert the contents of a file inline rather than on a new line. How can I do this?
How to rename terminal tab title in gnome-terminal?
Used to be able to right click on the tab and change the title. Not sure how to do this anymore. Just upgraded to Fedora 21.