ulimit is a utility tool to set some limitations of the user process. For example, you can set the maximum core file size by using
ulimit -c command.
# It sets the max number of blocks used for the core file. $ ulimit -c 100000
ulimit does not show information about other processes. You may want to check the resource limitation put on the running processes. You can check the resource limitation of an arbitrary process by using
/proc file system.
$ cat /proc/$PID/limits Limit Soft Limit Hard Limit Units Max cpu time unlimited unlimited seconds Max file size unlimited unlimited bytes Max data size unlimited unlimited bytes Max core file size 0 unlimited bytes ...