Rahul Sahu To monitor the ZFS disk space storage pool file system, you can use the zpool and zfs commands. Here are some examples: To display information about all ZFS storage pools: zpool list To display the usage statistics for a particular ZFS storage pool: zpool list -v <pool name> To display detailed information about a particular … Read more
To install a .tbz package file in FreeBSD, you can use the pkg_add command. Here are the steps: Open the terminal on your FreeBSD system. Download the .tbz package file that you want to install. Use the pkg_add command to install the package. For example, if you have downloaded a package file named example.tbz, the … Read more
The wget utility is not installed by default in FreeBSD, but it can be easily installed using the pkg package manager. To install wget, follow these steps: Open a terminal or login to the FreeBSD system. Type the following command as the root user to update the package repository: # pkg update Type the following … Read more
The mv command is used to move or rename files and directories in Unix/Linux operating systems. Here are some examples of how to use the mv command: To rename a file: mv oldfile newfile This will rename the file oldfile to newfile. To move a file to a different directory: mv file /path/to/directory/ This will … Read more
The ping command in UNIX is used to test connectivity between two nodes in a network. It sends packets to the destination node and waits for a response. Here are some examples of how to use the ping command in UNIX: Ping a host by IP address: ping 192.168.1.1 Ping a host by hostname: ping … Read more
To search for text in a file on UNIX, you can use the grep command. grep is a command-line utility that searches for patterns in files. Here’s how to use it: Open a terminal on your UNIX system. Navigate to the directory where the file is located using the cd command. Type grep followed by … Read more
The kill command is used to send a signal to a process. The signal can be used to terminate the process or to instruct it to perform some action, such as reloading its configuration file. Here are some examples of how to use the kill command in Linux/UNIX: To terminate a process with a specific … Read more
The mv command can be used to rename files in UNIX. Here is the syntax: mv old_filename new_filename Here, old_filename is the name of the file you want to rename, and new_filename is the new name you want to give to the file. For example, to rename a file named file1.txt to newfile.txt, you would … Read more
To set a user profile in the Bash shell in Ubuntu, you can use the ~/.bashrc file. This file is executed whenever a new interactive shell is started, and it can be used to set environment variables, aliases, and other settings for the user. To set the user profile, follow these steps: Open a terminal … Read more
The /usr/sbin/userhelper program is used by the useradd, usermod, and other user administration utilities to provide a graphical interface for adding, modifying, or deleting user accounts. By default, any user can execute /usr/sbin/userhelper, which can be a security risk. To restrict the execution of /usr/sbin/userhelper to console users only, follow these steps: Edit the /etc/pam.d/userhelper … Read more