Create and set custom keyboard layout
I want to create and set a custom keyboard layout with setxkbmap. I created a file in ~/.xkb/prog with this content:
Unix & Linux
Why is dd so slow with a bs of 100M
I just tried to overwrite a fast ssd using dd. Using the ubuntu boot image I typed in: dd if=/dev/zero of=/dev/sda bs=100M error writing '/dev/sda': No space left on device blah blah 256 GB copied, 1195.81 s 214 MB/s Isn’t that quite slow? And where is the bottleneck? What about the choice of block size? … Read more
Activate tap to click on touchpad?
I am using Debian 8.6 LXDE on a Powerbook G4 15″ 1.67GHz and would like to enable tap to click on the touchpad. It is already double scrolling but tap to click would help to save the ageing mouse button. Two fingered tap for left click would be the icing on the cake, is this possible?
Add prefix and suffix to every line in a .txt file
I am trying to append and prepend text to every line in a .txt file.
How are parentheses interpreted at the command line?
While reading up on how to set up grub, I came across an article claiming that I need to use one of the following two syntaxes,
Resolving symbolic links (pwd)
Say I do the following:
Why dd takes too long?
I need to copy one disk to another. I tried with the command below and it takes nearly a day to copy 1 TB of disk in federo.
How can I monitor disk I/O in a particular directory?
I’ve got a few processes with a known name that all write to files in a single directory. I’d like to log the number of disk block reads and writes over a period (not just file access) to test whether a parameter change reduces the amount of I/O significantly. I’m currently using iostat -d -p, but that is limited to the whole partition.
Permanent network drive mount in fstab not working (due to network not being online whilst attempting to mount)
I have a network drive hosted on a Windows10 Machine, it mounts fine to my CentOS7 machine through the command:
Why cat, grep and other commands can’t understand files starting with minus sign?
If I have a file which name starting with single or several minus sign, for example –1 it can’t be used as a parameter of many commands. Even if I run cat –1 instead of file content I get unrecognised option error message: cat: unrecognized option '–1' Same effect appears when I type cat "–1" … Read more