根据打开文件句柄查找文件

[oracle@june2 ~]$ vi 1.sh

while :
do
sqlplus scott/oracle<<!
select seq1.nextval from dual;
exit
!
done
~

通过lsof 查看打开文件的进程
[root@june2 fd]# lsof | grep 1.sh
vim       6665    oracle    4u      REG        3,3      12288    5200006 /oracle/.1.sh.swp


打开程序为vim  进程为6665 文件描述符为4

[root@june2 ~]# cd /proc/
[root@june2 proc]# ls
1     1671  1843  2086  2281  2379  346   6215  77         execdomains  loadavg     stat
10    1673  1885  2087  2295  2381  347   6424  79         fb           locks       swaps
11    1698  1906  2094  2297  2383  348   6470  8          filesystems  mdstat      sys
1278  17    1927  2100  2307  2385  358   6472  9          fs           meminfo     sysrq-trigger
1279  1701  1947  2108  2357  2387  371   6473  acpi       ide          misc        sysvipc
1280  1713  1958  2171  2359  2389  399   6512  buddyinfo  interrupts   modules     tty
1310  1726  1963  2174  2363  2391  4     6547  bus        iomem        mounts      uptime
147   1751  1978  2175  2365  2403  433   6548  cmdline    ioports      mtrr        version
148   1777  1989  2182  2367  2419  4545  6615  cpuinfo    irq          net         vmcore
149   1778  2     2188  2369  2421  4564  6665  crypto     kallsyms     partitions  vmstat
15    1786  2020  2189  2371  2423  5     6673  devices    kcore        schedstat   zoneinfo
150   1805  2041  2190  2373  2463  6     7     diskstats  keys         scsi
151   1816  2074  2278  2375  3     6105  73    dma        key-users    self
16    1822  2075  2280  2377  309   6109  74    driver     kmsg         slabinfo

[root@june2 proc]# cd 6665
[root@june2 6665]# cd fd
[root@june2 fd]# ls
0  1  2  4
[root@june2 fd]# cat 4
3210#"! Utp