$ curl cheat.sh/
# nsenter
# Run a new command in a running process' namespace.
# Particularly useful for docker images or chroot jails.
# More information: <https://manned.org/nsenter>.

# Run a specific command using the same namespaces as an existing process:
nsenter --target pid --all command command_arguments

# Run a specific command in an existing process's network namespace:
nsenter --target pid --net command command_arguments

# Run a specific command in an existing process's PID namespace:
nsenter --target pid --pid command command_arguments

# Run a specific command in an existing process's IPC namespace:
nsenter --target pid --ipc command command_arguments

# Run a specific command in an existing process's UTS, time, and IPC namespaces:
nsenter --target pid --uts --time --ipc -- command command_arguments

# Run a specific command in an existing process's namespace by referencing procfs:
nsenter --pid=/proc/pid/pid/net -- command command_arguments

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