Set default kernel in GRUB
How can I pick which kernel GRUB2 should load by default? I recently installed a the linux realtime kernel and now it loads by default. I’d like to load the regular one by default.
linux
File permission execute only
How can I set file to be executable only to other users but not readable/writable, the reason for this I’m executing something with my username but I don’t want to give out the password. I tried :
Bash script to remove the oldest file from from a folder
I want to make a bash script to delete the older file form a folder. Every time when I run the script will be deleted only one file, the older one. Can you help me with this?
Thanks
disable transparent hugepages
We are installing SAP HANA in a RAID machine. As part of the installation step, it is mentioned that,
How does this Makefile makes C program without even specifying a compiler?
I was using a Makefile from the book “Advanced Linux Programming (2001)” [code]. It was strange for me to see that GNU make does compile the code correctly, without even specifying a compiler in the Makefile. It’s like baking without any recipe!
Showing only “interesting” mount points / filtering non interesting types
I used mount to show mounted drives, I don’t want to see the not so interesting ones (i.e. non-physical). So I used to have a script mnt that did:
alternative to “netstat -s”
netstat -s prints out a lot of very detailed protocol statistics like number of TCP reset messages received or number of ICMP “echo request” messages sent or number of packets dropped because of a missing route.
What are the minimum root filesystem applications that are required to fully boot linux?
It’s a question about user space applications, but hear me out!
How do I add X days to date and get new date?
I have Linux ( RH 5.3) machine
Creating threads fails with “Resource temporarily unavailable” with 4.3 kernel
I am running a docker server on Arch Linux (kernel 4.3.3-2) with several containers. Since my last reboot, both the docker server and random programs within the containers crash with a message about not being able to create a thread, or (less often) to fork. The specific error message is different depending on the program, but most of them seem to mention the specific error Resource temporarily unavailable. See at the end of this post for some example error messages.