$ ls -l /dev/stdin /dev/fd/0
lrwx------ 1 tim tim 64 2011-08-07 09:53 /dev/fd/0 -> /dev/pts/2
lrwxrwxrwx 1 root root 15 2011-08-06 08:14 /dev/stdin -> /proc/self/fd/0
$ ls -l /dev/pts/2 /proc/self/fd/0
crw--w---- 1 tim tty 136, 2 2011-08-07 09:54 /dev/pts/2
lrwx------ 1 tim tim 64 2011-08-07 09:54 /proc/self/fd/0 -> /dev/pts/2
- / dev / fd /和/ proc / self / fd /之间有什么区别和关系?两者
fd
的均值both floppy disk
,均为file descriptor
还是均等于一个? - / proc / self和/ proc通常做什么?