How to make a variable from a subshell available in the parent shell
I’ve written a quick-and-dirty script to time some reports from a web service:
Unix & Linux
How is sudo intended to be used?
I’ve tried configuring sudo before, but I haven’t had too much luck with it. How is it different from su -l -c "x"? It seems that via the configuration file, one can make it so a user can only have access to certain commands and more. I always thought of sudo as a way of one-lining a command as another user or group. Since distros like Ubuntu and Mint make it easy by essentially giving the main user easy access to root via a password, I’m not really sure what its intended use is.
-bash: /usr/sbin/useradd: Input/output error — What does this mean?
Today, on my Centos server I tried to add a user but got the following error:
Set Xorg to use only part of the screen
My screen has 1280 x 1024 resolution. But unfortunately, rightmost belt of 200 pixels is damaged and unable do display any image.
How to debug and fix slow autocomplete in bash?
After a recent update (Ubuntu 12.04 LTS), TAB complete on the command line is slow. After entering a partial command (e.g evi [TAB]) or partial filename (e.g. evince somedocu[TAB]) the shell, sometimes though not always, hangs for several seconds.
Forward SIGTERM to child in Bash
I have a Bash script, which looks similar to this:
How to avoid /usr/bin/env being marked in systemd logs as the executable
I’ve created a systemd service to run a tomcat application based on the information found in this article. The short version of the article recommends avoiding the shell script wrappers, and executing java directly, with the appropriate environment and command line.
Why can’t certain programs (like readlink) take input from a pipe?
I have a symbolic link to a script in my $PATH whose file I wanted to edit. I forgot the filepath, so I tried to do the following:
How to make Fedora user a sudoer?
I want to give a Fedora user sudo privileges. How do I do that?
Is there any option with ‘ls’ command that I see only the directories?
Sometimes, I need to check only the directories not files. Is there any option with the command ls? Or is there any utility for doing that?