What is /lib64/ld-linux-x86-64.so.2 and why can it be used to execute file?
Recently, I have learned a trick that if a file lacks executable permissions, we can run that file by using /lib64/ld-linux-x86-64.so.2.
Unix & Linux
Avoiding “BASH-isms” in shell scripts
Does there exist a tool similar to Perl::Critic that will inspect your shell scripts and point out flaws, portability issues, uses of non-standard programs without fallbacks, depreciated program uses, etc?
Is there a Bash file that will be always sourced in interactive mode no matter if it is login or non-login?
As far as I know, the interactive shells may be login or not login, and the start up files for them are different.
bash: whitespace-safe procedural use of find into select
Given these file names:
Set environment variables for gnome on wayland and bash on virtual terminals (or ssh)
Gnome 3.22 uses wayland by default. Gnome on wayland does not read ~/.profile (or ~/.bash_profile or /etc/profile). See https://bugzilla.gnome.org/show_bug.cgi?id=736660.
How do I replace the last occurrence of a character in a string using sed?
How do I replace only the last occurrence of “-” in a string with a space using sed?
How do I recover from the Heartbleed bug in OpenSSL?
CVE-2014-0160 a.k.a. Heartbleed is a vulnerability in OpenSSL. It looks scary.
Is the shell ksh93 dead?
On 2013-01-10 Glenn Fowler posted this to the ast-users mailing list:
How to control systemd service using screen?
I’ve set up a systemd service to run my Minecraft server. Now, I need it to repeat the start script when the server crashes.
Here’s my code so far:
What is raw keyboard mode?
In the magic sysrq key combinations, there is the combination alt+sysrq+r which, according to wikipedia, does the following: