Categories
SysOps

How to get service PID using systemctl

Use systemctl to get process identifier for specified service.

Categories
SysOps

How to wipe partition-table signatures with one exception

Today I will extend the how to fix device excluded by a filter blog post to include information on how to wipe filesystem or partition-table signatures except for LVM2 members, which is a great idea for automation.

Categories
SysOps

How to write an operating system to microSD card using graphical user interface

Write an operating system to microSD card using Raspberry Pi Imaging Utility.

Categories
Uncategorized

How to display process statistics

Use system performance tools for Linux to display process statistics.

Categories
Uncategorized

How to manage systemd services remotely

Manage systemd services remotely over SSH protocol.

Categories
Uncategorized

How to edit file in-place

Use sponge utility to read standard input and safely write it out to the same file.

Categories
SysOps

How to fix device excluded by a filter

Fix “device excluded by a filter” LVM error.

Categories
DevOps

How to install Nexus Repository Manager 3

Install Nexus Repository Manager (NXRM) 3.

Categories
SysOps

How to use templates inside shell scripts

Use templates inside shell scripts by substituting environment variables.

Categories
SysOps

How to display strace summary

I have already described how to strace PHP-FPM processes, but you can also display a strace summary to get detailed information about count time, calls, and errors for each syscall.