How to make an Ubuntu time zone change stick?
I’d like to reset the timezone through editing /etc/timezone. However, after I was done editing and saved the file, the system time did not change accordingly.
Unix & Linux
Creating a Debian package that does not remove directories after it’s purged
I’m trying to create a Debian package that doesn’t delete an empty directory after it’s purged. Specifically, I’m creating my own package containing some CA certificates I trust.
Bash script Multiply only numbers from a text file?
I am looking for a bash command that will multiply only numbers from a text file. Below is the content of my text file. I need multiply all numbers by 100.
Unexpected behaviour from Readline’s bind command
I hadn’t yet researched whether or not bracketed paste mode is supported by the version of Bash/Readline on my Ubuntu 16.04 system (it isn’t) and out of curiosity, I ran the following command presented in this Ask Ubuntu answer.
Why is the size of my IO requests being limited, to about 512K?
I read /dev/sda using a 1MiB block size. Linux seems to limit the IO requests to 512KiB an average size of 512KiB. What is happening here? Is there a configuration option for this behaviour?
How to clean stdout/stderr color output
I have a program that would output something like this:
How to kill a task that cannot be killed (uninterruptable?)
I have a task running that blocks pm-hibernate (on Linux 4.0.7-2). When I try pm-hibernate there is an error message “Freezing of tasks failed after 20.002 seconds (1 tasks refusing to freeze, wq_busy=0):” and the task is shown.
Script failing with “command not found: ^M”
When I try to run the following script in zsh, via the command /bin/zsh ~/.set_color_scheme.sh I get the following error:
Mapping otherwise conflicting or unmappable keys in terminal Vim
Resources in the network (1, 2, 3) claim that some key
combinations, among which Ctrl-Shift-letter, Ctrl-number,
Ctrl-i/Tab, Ctrl-m/Enter,
Esc/Ctrl-[, cannot be mapped reliably in Vim because the
terminal does not distinguish them from their unmodified counterparts (more
background in this Gilles’ answer and this ASCII table article). As
a concrete example, the maps