How do I setup user autostart and properly configure systemd user services?
On my arch server, I was setting up users restricted to their home directories. I ran:
Unix & Linux
Indirect return of all elements in an array
The Bash man page describes use of ${!a} to return the contents of the variable whose name is the contents of a (a level of indirection).
Join two files with matching columns
File1.txt
When is xargs needed?
The xargs command always confuses me. Is there a general rule for it?
How do I bind the tmux prefix to a Super?
I find even Ctrl+b to be very emacs like but I understand the point. I’m wondering if I could bind it to a single keypress of a key I don’t other wise use? namely Super_L (also known as the left windows key. for why I say Super_L start xev in a terminal and press that key)
Will Linux start killing my processes without asking me if memory gets short?
I was running a shell script with commands to run several memory-intensive programs (2-5 GB) back-to-back. When I went back to check on the progress of my script I was surprised to discover that some of my processes were Killed, as my terminal reported to me. Several programs had already successively completed before the programs that were later Killed started, but all the programs afterwards failed in a segmentation fault (which may or may not have been due to a bug in my code, keep reading).
Recursive glob?
I’d like to write something like this:
systemctl – service exit codes and status information explanation
When checking a service status via systemctl
Is there a unix command that gives the minimum/maximum of two numbers?
I was looking for a command to limit numbers read in from stdin.
How to insert text after a certain string in a file?
Right now I’m using