[root@localhost ~]# ls -l /proc/2504/fd/
total 0
lrwx------ 1 root root 64 Aug 28 14:51 0 -> /dev/pts/0
lrwx------ 1 root root 64 Aug 28 14:51 1 -> /dev/pts/0
lr-x------ 1 root root 64 Aug 28 14:51 10 -> /var/lib/rpm/Basenames
lrwx------ 1 root root 64 Aug 28 14:51 11 -> /var/cache/yum/52x86_64/filelists.xml.gz.sqlite
lr-x------ 1 root root 64 Aug 28 14:51 12 -> /var/cache/yum/52x86_64/filelists.xml.gz
lrwx------ 1 root root 64 Aug 28 14:51 13 -> /var/cache/yum/52x86_64/filelists.xml.gz.sqlite-journal
lr-x------ 1 root root 64 Aug 28 14:51 14 -> /var/cache/yum/52x86_64
lrwx------ 1 root root 64 Aug 28 14:47 2 -> /dev/pts/0
lrwx------ 1 root root 64 Aug 28 14:51 3 -> socket:[10345]
l-wx------ 1 root root 64 Aug 28 14:51 4 -> /var/log/yum.log
lrwx------ 1 root root 64 Aug 28 14:51 5 -> /var/cache/yum/52x86_64/primary.xml.gz.sqlite
lr-x------ 1 root root 64 Aug 28 14:51 6 -> /var/lib/rpm/Packages
lr-x------ 1 root root 64 Aug 28 14:51 7 -> /var/lib/rpm/Name
lr-x------ 1 root root 64 Aug 28 14:51 8 -> /var/lib/rpm/Requirename
lr-x------ 1 root root 64 Aug 28 14:51 9 -> /var/lib/rpm/Providename