Dtach
dtach is a program that emulates the detach feature of screen, allowing you to run a program in an environment that is protected from the controlling terminal. Useful for remote sessions that you want to persist after disconnecting.
dtach: Emulate Screen Detach Feature
A program to create isolated environments for running programs, useful for persistent remote sessions
What is Dtach?
Dtach is a small utility program that emulates the detach feature of GNU screen. It allows you to run a program in an environment that is protected from the controlling terminal and attach to it later. Some key features of dtach:
- It keeps programs running even if their controlling terminal hangs up
- Programs keep running even if SSH connection dies or the session is closed
- You can reconnect to detached programs multiple times
- Lightweight with very few dependencies compared to GNU screen
Some examples of how dtach can be useful:
- Run long-running processes over SSH without having them interrupted if your connection drops
- Deploy daemons in a terminal-independent environment
- Provides similar protection to nohup/disown but with the ability to reattach later
So in summary, dtach is a simple but effective utility for detaching processes from terminals, allowing them to persist after you disconnect. Its lightweight nature makes it popular for remote SSH sessions and server deployments.
Dtach Features
Features
- Allows processes to continue running after terminal is closed/disconnected
- Can reattach to a detached process later
- Lightweight and simple
- Works over SSH
Pricing
- Open Source
Pros
Enables remote sessions to persist without screen
Good for simple process detach/reattach needs
Small memory and resource footprint
Cons
Less full-featured than screen
No multiplexing of sessions like screen
Limited configuration options
Official Links
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