I have a directory /home/ubuntu/uploads . I need to check if it contains any zip file. if it contains then I need to move the oldest modified file according to date to a different directory called /home/ubuntu/temp. Then I need to unzip the zip file we got in /home/ubuntu/temp to a directory ...

I notice there are (at least) 3 different SE sites that a Linux-related question could get asked: here, StackOverflow or Unix & Linux. There could be others too. But where is best to ask my questions regarding Linux? I don't really know what the differences between Ubuntu, Unix and Linux are (I'...

I have an Ubuntu 18.04 acting as router with 3 interfaces. Two of them end up in the same device (they are used as dual path since depending on the situation one of the paths can be down or viceversa). The other interface is the local network where there is other device (lets call it device2) tha...

I am learning at Node size with B+trees,it seems that storage speed is very important. I looked around and tried this sudo hdparm -Tt /dev/sda Output /dev/sda: Timing cached reads: 11956 MB in 1.99 seconds = 5993.51 MB/sec Timing buffered disk reads: 818 MB in 3.00 seconds = 272.52 MB/s...

Our Zabbix server was running fine up until yesterday when all of a sudden I couldn't open the dashboard in my web browser. If I try and restart Apache i get the below - administrator@SRV004MON:~$ sudo systemctl restart apache2 [sudo] password for administrator: Job for apache2.service faile...

I've got a simple chroot system, built using bind mounts. It resides in /opt/chroot.skel and it's built on Alpine. Whenever I create a new user, I copy the files from /opt/chroot.skel, to a /opt/chroot/{username} then mount /home/{username} to /opt/chroot/{username}/home/{username}. Everything...

I'm trying to create a remote PowerShell connection between a Windows 10 x64 machine and an Ubuntu 16.04 x64 machine through WSMan --- I know that for PowerShell Core SSH can be used but I'm interested in WSMan at this moment. First, I've installed PowerShell 7.0.1, then omi-psrp-server on the ...

I just want to know if I have no DSA key just an RSA key if my ISO is ok. I ran everything, It says the ISO is OK when I check it and verifies with the RSA key but is this OK with no DSA key or is there something else I should do, or something i missed? Sorry for the formatting and any mistakes ...

I have an old machine with Intel D2700DC board (https://ark.intel.com/content/www/us/en/ark/products/56456/intel-desktop-board-d2700dc.html) I use it as a home server for some side projects. I have there Ubuntu 32-bit installed, but recently figured out that D2700DC is actually a 64-bit processo...

I recently installed a Virtual Box and Ubuntu and I've tried starting it. However once it starts I encounter an error. It reads as follows: VT-x/AMD-V hardware acceleration is not available on your sytem. Your 64-bit guest will fail to detect a 64-bit CPU and will not be able to boot. I've trie...