nelhage/reptyr

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

6325 stars · 230 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

reptyr is a command-line utility that reparents an already-running process to a new terminal using ptrace. It lets you move long-running programs into a terminal multiplexer like tmux or screen so they survive closing an SSH session.

Use cases

• move a running process into tmux before closing ssh
• reattach a long-running command to a new terminal
• rescue a process started without a terminal multiplexer
• keep a job running after disconnecting from ssh
• attach an existing process to screen or tmux

When to choose

• you started a long-running process over ssh and forgot to use tmux or screen
• you need full terminal interaction including ^C, ^Z, and window resizing after reattaching
• you want a reliable alternative to the gdb-based screenify script

When to avoid

• you only need to start new processes in a multiplexer rather than move existing ones
• you are on an OS other than Linux or FreeBSD
• you need to reattach backgrounded jobs' shell job control, which reptyr cannot fully fix

Facets

cli-tool · maturity active

developer-tools terminal-ui cli developer-tools operating-systems bsd cli ptrace terminal-multiplexer process-management tmux screen command-line linux

Member repositories

For agents

markdown · JSON · MCP: product_card(name="nelhage/reptyr")