Linux 在本例中,/proc/self/fd/4会发生什么变化?
对于bash 3.00.15(1):Linux 在本例中,/proc/self/fd/4会发生什么变化?,linux,proc,Linux,Proc,对于bash 3.00.15(1): $ls/proc/self/fd 4在我的Debian/Sid上echo | ls-l/proc/self/fd 4>&1显示了fd 4,既有zsh和bashshell,也有sash $ ls /proc/self/fd 4<&1 0 1 2 3 4 $ echo | ls /proc/self/fd 4<&1 0 1 2 3 4 $ ls() { /bin/ls $*; } $ ls /proc/self/fd 4<&am
$ls/proc/self/fd 4在我的Debian/Sid上echo | ls-l/proc/self/fd 4>&1
显示了fd 4,既有zsh
和bash
shell,也有sash
$ ls /proc/self/fd 4<&1
0 1 2 3 4
$ echo | ls /proc/self/fd 4<&1
0 1 2 3 4
$ ls() { /bin/ls $*; }
$ ls /proc/self/fd 4<&1
0 1 2 3 4
$ echo | ls /proc/self/fd 4<&1 # Unexpected output
0 1 2 3