background process pipe-input
if i want to display “aaa” on screen:
Unix & Linux
One file wants to belong to two users. How? Hard linking fails
Two setuid programs, /usr/bin/bar and /usr/bin/baz, share a single configuration file foo. The configuration file’s mode is 0640, for it holds sensitive information. The one program runs as bar:bar (that is, as user bar, group bar); the other as baz:baz. Changing users is not an option, and even changing groups would not be preferable.
Debian stretch failed to load firmware rtl_nic/rtl8168g-3.fw (-2)
I’m getting this error in Debian stretch during the boot process
Keep only successful commands in BASH history
Sometimes I misunderstand the syntax of a command:
What’s the difference between fork() and vfork()?
I would like to understand in detail the difference between fork() and vfork(). I was not able to digest the man page completely.
Change sshd logging file location on CentOS?
How do I change the sshd logging file location on CentOS? sshd logs to /var/log/messages instead of /var/log/secure. How can I change the setting so sshd will stop sending logs to /var/log/messages?
Ctrl+C does not work in gnome-terminal
On my Linux host, Ctrl+C does not seem to work and I do not know how to proceed to make it work. I am using Ubuntu 10.04 with bash 4.1.5(1), and working in Gnome-terminal.
Making Linux read swap back into memory
The Linux kernel swaps out most pages from memory when I run an application that uses most of the 16GB of physical memory. After the application finishes, every action (typing commands, switching workspaces, opening a new web page, etc.) takes very long to complete because the relevant pages first need to be read back in from swap.
Ubuntu upgrade from 17.04 to 18.04
I’ve installed ubuntu 17.04 and I want to upgrade it to 18.04. When I tried to do:
Detach/reattach an application run on X over SSH?
I have a development server that I leave running all the time, and a development laptop that I turn off/on everyday.