Find out the number of CPU cores on Linux
How to find out the number of CPU cores on a Linux host.
Use the command nproc.
$ nproc
nproc – print the number of processing units available: man page of nproc.
How to find out the number of CPU cores on a Linux host.
Use the command nproc.
$ nproc
nproc – print the number of processing units available: man page of nproc.
Controlling the mounting of filesystems is a useful technique for managing Linux systems. The mounting configurations are mostly in the /etc/fstab file. In this post, we will discuss 2 common and useful techniques for controlling the filesystem mounting by playing with the /etc/fstab file: allowing non-root users to mount/unmount filesystems and avoiding mounting failures blocking…
In this blog Dynamics CRM consultants are sharing a step-by-step guide to explain how to filter another lookup field value based on one Lookup field value. In this Lead entity, they are having two fields Branch and Sub Branch and you will learn how they filter Subbranch based on Branch field. Based on one Lookup…
How to show the list view in iOS 7’s calendar? Is it deleted? The list view is still available in iOS 7’s calendar. To find it, just click the magnifying glass on the top right and you will see the list view. Read more: Synchronizing Thunderbird Calendar with Apple iCloud Calendar How to count the…
How to check whether a key already exists in a dict in Python since version 2.6? If d is a dict(), you can directly test whether a key k is in d in Python by the in keyword like if k in d: .. Read more: How to get the value of a default value…
Readers may ask “there are lots Q&A sites. Why do you set up ask.fclose.com?”. There are mainly two reasons: I have some tips to share which are short and fit into the Q&A model very well. These tips sometimes do not fit into a relative long blog post. Hence, I post them as Q&As. Some…
VitualBox is installed on Fedora 21 by # yum install VirtualBox The following packages are installed kmod-VirtualBox-3.18.7-200.fc21.x86_64-4.3.20-4.fc21.4.x86_64 VirtualBox-4.3.20-3.fc21.x86_64 There is the kernel modules package installed. However, when running virtualbox (after reboot), it reports: [zma@laptop:~]$ virtualbox WARNING: The vboxdrv kernel module is not loaded. Either there is no module available for the current kernel (3.18.7-200.fc21.x86_64) or…