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This article gives references to useful syntax related to user limit configurations with ulimit.


ulimit: usage: ulimit [-SHabcdefilmnpqrstuvxT] [limit]

List All Limits

ulimit -a


core file size          (blocks, -c) 0
data seg size           (kbytes, -d) unlimited
scheduling priority             (-e) 0
file size               (blocks, -f) unlimited
pending signals                 (-i) 15505
max locked memory       (kbytes, -l) 64
max memory size         (kbytes, -m) unlimited
open files                      (-n) 1024
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
real-time priority              (-r) 0
stack size              (kbytes, -s) 8192
cpu time               (seconds, -t) unlimited
max user processes              (-u) 15505
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited

List Hard Limit

ulimit -Hn

List Soft Limit

ulimit -Hn

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