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`ifconfig eth0`(command is used to display the configuration information of the network interface named eth0)

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The “ifconfig eth0” command is used to display the configuration information of the network interface named eth0 in Linux systems. It provides details about the network interface, including its IP
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`iptables -t filter -L`(is used to list the current firewall rules in the “filter” table of the “iptables” utility.)

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The command “iptables -t filter -L” is used to list the current firewall rules in the “filter” table of the “iptables” utility. “iptables” is a command-line tool used for managing
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`top` (command is a system monitoring utility in Linux and Unix-like operating systems.)

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The “top” command is a system monitoring utility in Linux and Unix-like operating systems. When you run the “top” command in a terminal or command prompt, it provides a real-time
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`uname -n`(command is used to print the network node hostname of the system.)

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The “uname -n” command is used to print the network node hostname of the system. When you run this command in a terminal or command prompt, it will output the
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`uname -s`(command is used to print the kernel name of the operating system.)

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The “uname -s” command is used to print the kernel name of the operating system. When you run this command in a terminal or command prompt, it will output the
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`uname -a` (command is used to print detailed system information, including the kernel name, network node hostname, kernel release, kernel version, machine hardware name, and operating system.)

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The “uname -a” command is used to print detailed system information, including the kernel name, network node hostname, kernel release, kernel version, machine hardware name, and operating system. When you
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  • `init 0`(is used to initiate a system shutdown in Linux.)
  • `uname -r`(” is used to display the kernel release information in Linux.)
  • `apt-get install package_name`
  • `cat file1 | command (sed, grep, awk, grep, etc …)> result.txt`
  • cat file1 file2 .. | command > file1_out.txt
  • `badblocks -v /dev/hda1`(is used to scan for bad blocks on the device or partition “/dev/hda1” in Linux systems.)
  • `mkfs /dev/hda1`(is used to create a file system on the device or partition)
  • `mkswap /dev/hda3`
  • `dump -0aj -f /tmp/home0.bak home` (is used to create a backup of the “home” directory using the “dump” utility.)
  • `cdrecord -v gracetime = 2 dev = /dev/cdrom -eject blank = fast -force`
  • `ifconfig eth0`(command is used to display the configuration information of the network interface named eth0)
  • `iptables -t filter -L`(is used to list the current firewall rules in the “filter” table of the “iptables” utility.)
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