bash: ifconfig: command not found debian centos ubuntu rhel

This article will be helpful for Ubuntu, CentOS, RHEL, Debian, Raspbian OS users.

ifconfig is a very commonly used command to find the ipaddress of a linux machine. Sometimes we may get an error like

bash: ifconfig: command not found

The reason for this can be because of one of the following reasons.

  • The ifconfig command is not available in the system.
    • In case of this issue, we have to install the net-tools package
  • The ifconfig script is not available in the PATH
    • In this case, we have to try executing /sbin/ifconfig command

In these cases, we can get the ip address details by using another command. We don’t have to install any additional package for issuing the following command

ip addr

If the net-tools package is missing in the system, we can enable ifconfig by installing the package. The command to install the package is given below.

For Ubuntu, Raspbian, Debian OS use the following command

sudo apt-get install net-tools

For RHEL / CentOS users, use the following command

sudo yum install net-tools

Now try ifconfig in the commandline and you will be able to see the ip address details.

 

Disable Sleep mode in CentOS7/RHEL7 laptop on lid close

The following tip will help you to disable the powersaving or sleep mode behavior of your CentOS or RHEL laptop or desktop. If GUI is present, the following steps will help.

Applications => Utilities => Tweak Tool => Shell => Don't suspend on lid close => ON

But if GUI is not installed, then the only option is to disable this from the commandline. It is very easy, don’t worry. Who cares about the GUI in Linux. ? 🙂 (I love the black screen)

Open /etc/systemd/logind.conf, then make edit in the following configuration. By default, the value of this config will be suspend

HandleLidSwitch=ignore

man logind.conf will provide the complete details about this configuration file. Hope this tip helps.