Linux / UNIX: bc Convert Octal To Hexadecimal or Vise Versa

You can use the bc command-line calculator tool to convert between octal and hexadecimal number systems in Linux or UNIX systems. Here’s how: Convert Octal to Hexadecimal: $ echo “ibase=8;obase=16; <octal_number>” | bc Where <octal_number> is the octal number you want to convert. Convert Hexadecimal to Octal: $ echo “ibase=16;obase=8; <hexadecimal_number>” | bc Where <hexadecimal_number> … Read more

disable Maintenance mode in laravel

To turn off maintenance mode in Laravel, you can use the following steps: Connect to your server using SSH. Navigate to the root directory of your Laravel application. Run the following Artisan command:   php artisan up This command will turn off maintenance mode and make your application accessible to visitors again. If you encounter … Read more

Maximum Number of Disks In RAID 5

The maximum number of disks in a RAID 5 configuration depends on the specific implementation of RAID 5, as well as on the hardware and software components used. In general, RAID 5 can support up to 32 disks, with one disk used for storing parity information and the rest used for storing data. However, the … Read more

Linux: Find Alternative Superblocks

In Linux, you can use the fsck command to find alternative superblocks on a file system. The superblock is a critical data structure that contains information about the file system, including the number of blocks, the size of the file system, and a list of inodes. If the superblock is damaged, the file system may … Read more

Ubuntu: Rename an Account [ User ID ]

To rename an account in Ubuntu, you can use the usermod command. The usermod command allows you to modify the properties of a user account, including the username. Here’s how to rename an account in Ubuntu: Open a terminal window. Type the following command to rename the account, replacing “old_username” with the current username and … Read more

Linux Change Password

In Linux, you can change your password using the passwd command. The passwd command is used to change the password for a user account. Here’s how to change your password in Linux: Open a terminal window. Type the following command and press enter: passwd Enter your current password when prompted. Enter your new password when … Read more

Restart Apache 2 In Mac OS X

You can restart Apache 2 in Mac OS X using the Terminal. Here’s how: Open the Terminal application. You can find it in the Utilities folder within the Applications folder. Type the following command to stop Apache 2: sudo apachectl stop You will be prompted for your password. Enter your password to continue. Type the … Read more