What is the difference between ‘env’ and ‘printenv’?
What is the difference between the two commands env and printenv? They both show the environment variables, and the output is exactly the same aside from _.
Unix & Linux
What does <<-EOC means?
I’d like to know what the minus (-) and the EOC in the command below means. I know some languages like Perl allows you to chose any combination of character (not bound to EOF) but is that the case here? And the minus is a complete mystery for me. Thanks in advance!
Becoming root from inside Vim
Sometimes I start editing configuration files in /etc using Vim, but forget to use sudo to start Vim. The inevitable result then is that after finishing my edits I encounter the dreaded notice that I don’t have the permission to save the file.
grep on a variable
Let’s say I have a variable
journalctl shows very old boots which are not recycled
The system has very old boots (2 and 3 years old), which are not recycled and I haven’t been able to vacuum them:
Copy image from clipboard to file
Is it possible to take an image from the clipboard and output it to a file (using X)?
Kali Linux is Installed but not showing in boot manager
I recently bought a new Laptop:
Lenovo IdeaPad 320e
Intel i5 7200 2.5GHz processor
8Gb RAM
2Gb NVidia 940mx Graphics
1TB HDD
Change the location of .bashrc
Is it possible to change the location of .bashrc from /home/orhanc/.bashrc to some other directory?
SSH connection refused from inside my LAN
I’m on Fedora 19 and I have a problem with ssh.
hard disks spin up by processes / applications that simply get a list of disks? How to prevent?
I have a 24/7 always-on Debian Jessie based headless home server that has a large 1TB SSD for the OS and all of my frequently accessed files. This same system has 4 larger hard disk drives in a SnapRAID array. These are mainly for archiving infrequently accessed Blu-rays and want those drives to remain spun down in standby unless I actually read or write to them. They are all formatted as ext4 and mounted with noatime and nodiratime enabled.