Linux

neofetch command is a command line tool that displays system information next to an image within the terminal. It displays the system configurations and specifications along with an ASCII image of the logo of the operating system. This neofetch command line system information tool is written in bash. By default, it displays the ASCII image […]

netstat means network statics. It is a command line tool that displays network connections, masquerade connections, multicast memberships,  routing tables and interface statistics. It can also be used for troubleshooting, configuration and monitoring the network. Check netstat command is installed or not. netstat command line tool may not be preinstalled on Linux computer. You need

ps ps –help ps a   ps -A ps -a ps -ax ps aux ps au ps -a -N ps -d ps -e ps -ef ps -eF   ps -T ps -X ps -u ubuntu

man man –help man -V man –version man sleep man -f sleep man 1 sleep man -a sleep   man -k sleep man -w sleep man -wa sleep man -I sLeep man sLeep

nproc nproc –help nproc –version nproc –all nproc –ignore=3

touch command in Linux/Unix touch –help touch –version touch abc.txt touch 123.c def.txt 123.txt hello.html touch file{1..5} touch 987{a..e} touch -a abc.txt touch -m abc.txt touch -t YYMMDDHHMM filename   touch -t 1905290815 abc.txt touch -d yesterday abc.txt touch -am abc.txt touch -r abc.txt 123.txt

bc –help bc –version bc echo “5+5” | bc echo “5*5” | bc echo “5^2” | bc x=`echo “5*5” | bc` echo $x

kmod command in Linux is used to manage kernel modules. i.e.- Insert, list, load and unload the kernel modules. To get help with kmod command, use kmod –help command. kmod –help To know kmod installed version, use kmod –version in terminal. kmod –version To list currently loaded modules, use command kmod –list in terminal. kmod

gzip command compresses single or multiple files. The compressed file ending with the extension (.gz), generally size of compressed file will be less than the size of the original file. The gzip command uses a deflate algorithm, deflate algorithm a lossless data compression that creates smaller file sizes to make file transfer much faster. gzip

groups –help groups –version groups groups extra groups root cat /etc/group