Freaks City

sed Command Reference Displaying Specific Lines To print the 10th line of /etc/passwd: sed -n '10p' /etc/passwd To print lines 8 through 15 of /etc/passwd: sed -n '8,15p' /etc/passwd To print line 8 and the next 5 lines of /etc/passwd: sed -n '8,+5p' /etc/passwd Pattern Matching To print lines starting with 'nginx' in /etc/passwd: sed ...

Shell Functions Defining Functions Functions in shell scripts encapsulate reusable blocks of code. There are two common syntax styles: # Style 1: Using the function keyword function my_function { commands } # Style 2: Bash-compatible parentheses syntax my_function() { commands } Inspecting Defined Functions The declare builtin provide ...

The Shell acts as the interface between the Linux kernel and the user, serving as the primary mechanism for system management and communication. Depending on the initialization method, a Shell session operates in one of four distinct modes, defined by two criteria: authentication status (Login or Non-login) and interactivity (Interactive or Non ...

Data integrity is a critical component of server administration. Relying on manual intervention often leads to inconsistent recovery points. To mitigate this risk, an automated solution utilizing a Bash script provides a reliable mechanism for performing consistent dumps, compressing the output, and securely replicating archives to a remote ser ...