ulimit - get and set user limits
## Set user limit for CPU, Hard Disk, Memory, Stack, File size
vi /etc/security/limits.conf
Check Server Stack Size
[kevin] ulimit -s
[kevin] 10240
Contab will execute sequence1.pl every minute and will limit memory usage to 128M
* * * * * ulimit -d 131072 -m 131072 -v 131072; /usr/bin/nice ./sequence1.pl >> /dev/null 2>&1;
vi ~/.bashrc
limit -t 1800
spider@la:~$ ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 20
file size (blocks, -f) unlimited
pending signals (-i) 16382
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) 1800
max user processes (-u) unlimited
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
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