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needrestart:tldr:bdcd0
The needrestart
command is a utility used in Linux-based operating systems to determine which running processes need to be restarted after system updates or package installations.
When you update your system or install packages, some processes may still be using the old versions of the updated files. These processes need to be restarted to use the new files and apply the updates effectively.
The needrestart
command scans the running processes and checks if any of them are using outdated versions of libraries or binaries that have been updated. It presents a report showing which processes require a restart to ensure the new versions are used.
This command is especially useful for system administrators to ensure that the system is fully updated and avoids security vulnerabilities or instability caused by running outdated processes.