Useful tips for everyday
How do I change the display color? Close all open programs. Click Start, and then click Control Panel. In the Control Panel window, click Appearance…
How to extract a word beginning with a specific character? To extract the words that begin with a specific character or text from each cell,…
Does disk cache improve performance? A soft disk cache works by storing the most recently accessed data in the RAM cache. Because computers can access…
How are Makefiles used in the Linux kernel? The kbuild Makefile uses information from the .config file to construct various file lists used by kbuild…
How do I run Kali Linux in VMware workstation? Step 1 – Download Kali Linux ISO image. Step 2 – Locate the downloaded file. Step…
What are the chains in iptables filter table? Iptables’s filter table has the following built-in chains. INPUT chain – Incoming to firewall. For packets coming…
What is the use of rsync? Rsync, or Remote Sync, is a free command-line tool that lets you transfer files and directories to local and…
Why is there no library on the LD LIBRARY PATH? It is possible that despite LD_LIBRARY_PATH, a library is not found because of ABI mismatch.…
What is passing the usr bin env for in the shebang? In addition to the answers given above, the use of /usr/bin/env allows your Python…
What is / proc / < PID > / net / Dev? /proc/net/dev contains statistics about network interfaces, while /proc/ /net/dev contains statistics about network…