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A file named core appeared on my desktop after a reboot. I checked it using file core and it seemed that it was created by VLC. The strange thing is when I checked the limit on core files' size using ulimit -c it returned 0. So how did this file created?
EDIT: I forgot to mention that this file was huge. Its size was around 512MiB.
ulimit is a shell builtin (Verify with type ulimit) and only affects the shell and its descendents, you want to check/edit /etc/security/limits.conf for system wide settings.
