Rahul Sahu The “df” command in Linux and Unix is used to display the amount of disk space used and available on the file system. The command can be used with various options to display the information in different formats. Some examples of how to use the “df” command are: To display information about all file systems … Read more
To upgrade a ZFS storage pool version on FreeBSD, you can use the “zpool upgrade” command. The command will upgrade the specified pool to the most recent version supported by the system. For example: zpool upgrade poolname It is recommended to backup your data before upgrading. And also you may need to take the pool … Read more
To install lftp on a FreeBSD system using the command line interface (CLI), you can use the pkg package manager. First, update the package index by running the following command: sudo pkg update To install lftp, you can use the install command. This command will download and install the package and its dependencies: sudo pkg … Read more
There are several ways to find and replace all IP addresses with a new one in a Linux system. One way is to use the sed command, which is a powerful text processing tool. First, you will need to find all of the IP addresses in the files you want to modify. You can use … Read more
There are several ways to find the number of RAM slots in a Linux system. One of the most common methods is to use the dmidecode command, which retrieves hardware information from the BIOS. Open a terminal window and run the following command: sudo dmidecode -t memory This will display information about the memory installed … Read more
In Ansible, the when statement is used to conditionally execute a task based on the outcome of a test. You can use multiple when statements in a task by using the and and or operators to join multiple tests. To use multiple when statements with the and operator, you can use the and keyword followed … Read more
Alpine Linux uses the apk package manager to manage software packages. To see what package updates are available, you can use the apk update command to update the package index, and then run the apk version command to check for updates. Update the package index by running the following command: apk update Check for package … Read more
ZFS on Linux uses the Adaptive Replacement Cache (ARC) to store frequently accessed data in memory. On Ubuntu/Debian, you can set the size of the ARC by modifying the kernel parameters. Check your current ARC size by running the following command: cat /proc/spl/kstat/zfs/arcstats To set the ARC size, you will need to add a kernel … Read more
To copy files remotely on Linux using scp, the basic syntax is: scp [source file] [username]@[remote host]:[destination] For example, to copy a file called “file.txt” from your local machine to a remote host called “example.com” in the user’s home directory, you would use the following command: scp file.txt user@example.com:~/ To copy files remotely on Linux … Read more
There are a few ways to convert a man page to HTML on Linux and Unix. One method is to use the command line tool “groff” to format the man page as HTML. Here is an example command: groff -mandoc -Thtml manpage.1 > manpage.html Another method is to use the command line tool “man2html” to … Read more