Bash sort array according to length of elements?
Given an array of strings, I would like to sort the array according to the length of each element.
Unix & Linux
How can you schedule a computer to boot at a specific time?
Usually BIOSes have an option to schedule a time to which to boot at. Is there a Unix/Linux interface to specify the scheduled boot?
tomcat 8 will not start after initial install
I am trying to install tomcat on a new CentOS 7 virtual machine. I successfully installed apache httpd, and am able to get the apache test page when I type the ip of the virtual machine into a web browser on another computer in the network. But I am getting the following error message when I type systemctl start tomcat:
Is interrupting badblocks risky?
I’m running badblocks to check for bad segments on an external drive, and it’s been about an hour and it has not yet finished. Now, I need to go and consider cancelling. Is this somehow risky? Should I avoid this?
How do I resolve samba share to IP address or host name
I have a list of hosts in the network providing shares via SAMBA. How can I determine either IP address or the host name of one particular host, e.g. the one with the name “SASAK02”.
btrfs — Is it dangerous to defragment subvolume which has readonly snapshots?
If you open the defragment section of btrfs-filesystem(8), you will see the following ominous inscription left by the developers:
How to emulate Process Substitution in Dash?
In bash, I can use Process Substitution and treat output of a process as if it was a file saved on disk:
where does lspci gather its information from?
In kernel.org’s documentation on proc I found “[The latest version of this document is available online“. There I says: “… lspci is a synonym for cat /proc/pci“.
How updated and relevant is “The Linux Documentation Project”?
I have been advised by many senior Unix/Linux Administrators to go through “The Linux Documentation Project” on the site www.tldp.org.