prlimit

Display all limits for current process

$ prlimit

$ prlimit -p [pid]

$ prlimit -n [1024] [command]

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.

-p, --pid _pid_

Process ID to query or modify

Maximum number of open files

Maximum number of processes

Maximum stack size

Maximum virtual memory size

Maximum resident set size

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

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.

ulimit(1), getrlimit(2)