prlimit

Get or set process resource limits

TLDR

Display all limits for current process

$ prlimit

Display limits for specific process

$ prlimit -p [pid]

Run command with custom file limit

$ prlimit -n [1024] [command]

SYNOPSIS

prlimit [-p pid] [limit=value] [command]

prlimit gets or sets process resource limits. It can query limits for a running process or run a new command with specified limits. Limits can be set as soft:hard or just a single value for both.The tool provides finer control than ulimit, allowing modification of another process's limits and setting both soft and hard limits simultaneously.

PARAMETERS

-p, --pid _pid_

Process ID to query or modify

-n, --nofile _limit_

Maximum number of open files

-u, --nproc _limit_

Maximum number of processes

-s, --stack _limit_

Maximum stack size

-v, --as _limit_

Maximum virtual memory size

-m, --rss _limit_

Maximum resident set size

INSTALL

sudo apt install util-linux

sudo dnf install util-linux

sudo pacman -S util-linux

sudo apk add util-linux-misc

sudo zypper install util-linux

brew install util-linux

nix profile install nixpkgs#util-linux

CAVEATS

Modifying another process requires appropriate privileges. Hard limits can only be raised by root. Some limits may not be adjustable on all systems.

HISTORY

prlimit is part of util-linux, providing a modern interface to the prlimit system call. It offers more flexibility than the shell built-in ulimit command.