Linux Archives - Page 41 of 42

How to Fix Notice: Undefined Variable in PHP

Sometimes you may get an error Notice: Undefined Variable in PHP. Here is how to fix this error in PHP.

Grep is a powerful utility to search for strings, patterns and words in Linux. Here is how to grep multiple strings, patterns and words.

Nano is a popular text editor in Linux. Here is how to search in Nano Text Editor in Linux.

Sometimes you may need to create user and roles in MongoDB. Here is how to create user in MongoDB.

Sometimes you may need to copy file to multiple directories. Here is how to copy file to multiple directories in Linux.

Curl is a useful tool to transfer files and data across systems over a network. Here is how to use curl to download files in Linux.

Cronjobs allow you to schedule tasks in Linux system. Here is how to check cron log in Linux.

Sometimes you may need to create an empty file or blank file in Linux. Here is how to create empty file in Linux.

Sometimes you may need to find the largest directories & files on your Linux system. Here is how to find largest files & directories in Linux

Sometimes you may need to run Linux commands in background. Here is how to easily run Linux command in background.