Question

在Windows 7中，当运行使用open通过ssh与远程Linux PC交互的Tcl脚本时，可以看到远程PC的提示。代码示例：

set fh [open "|./plink -ssh $user@$ip -pw $password" w+]

catch {fconfigure $fh -blocking 0 -buffering none -translation binary} output

set i 0
while {1} {
    puts -nonewline stdout "iter $i. "
    set data [read -nonewline $fh]
    puts -nonewline $data
    if {$i > 3} {
        puts $fh "ls -l\r"
    }
    after 1000
    incr i
}

具有以下输出（ls的某些输出被修剪以提高可读性）：

C:\test>tclsh openInWindows.tcl
iter 0. iter 1. Welcome to Ubuntu 12.04.4 LTS (GNU/Linux 3.5.0-45-generic i686)

 * Documentation:  https://help.ubuntu.com/

99 packages can be updated.
62 updates are security updates.

Last login: Mon Apr  7 13:17:20 2014 from 1.2.3.4
←]0;root@MyPC: ~root@MyPC:~# iter 2. iter 3. iter 4. iter 5. ls -l
total 1876
drwxr-xr-x 2 root root   4096 Apr  3 13:34 ←[01;34mDesktop←[0m
drwxr-xr-x 2 root root   4096 Apr  3 13:34 ←[01;34mDocuments←[0m
drwxr-xr-x 3 root root   4096 Apr  3 13:34 ←[01;34mDownloads←[0m
drwxr-xr-x 2 root root   4096 Apr  3 13:34 ←[01;34mMusic←[0m
drwxr-xr-x 2 root root   4096 Apr  3 13:34 ←[01;34mPictures←[0m
drwxr-xr-x 2 root root   4096 Apr  3 13:34 ←[01;34mPublic←[0m
drwxr-xr-x 2 root root   4096 Apr  3 13:34 ←[01;34mTemplates←[0m
drwxr-xr-x 2 root root   4096 Apr  3 13:34 ←[01;34mVideos←[0m
←]0;root@MyPC: ~root@MyPC:~# ^C
C:\test>

但是当在Linux中运行相同的脚本（稍作修改）时，远程PC的提示不会出现（尽管它仍然可以执行命令并获得结果）。

Linux的代码：

set fh [open "|sshpass -p $password ssh $user@$ip" w+]

catch {fconfigure $fh -blocking 0 -buffering none -translation binary} output

set i 0
while {1} {
    puts -nonewline stdout "iter $i. "
    set data [read -nonewline $fh]
    puts -nonewline $data
    if {$i > 3} {
        puts $fh "ls -l"
    }
    after 1000
    incr i
}

具有以下输出（ls的某些输出被修剪以提高可读性）：

root@MyUbuntu:~# tclsh openInLinux.tcl
iter 0. iter 1. Welcome to Ubuntu 12.04.4 LTS (GNU/Linux 3.5.0-45-generic i686)

 * Documentation:  https://help.ubuntu.com/

99 packages can be updated.
62 updates are security updates.
iter 2. iter 3. iter 4. iter 5. total 1876
drwxr-xr-x 2 root root   4096 Apr  3 13:34 Desktop
drwxr-xr-x 2 root root   4096 Apr  3 13:34 Documents
drwxr-xr-x 3 root root   4096 Apr  3 13:34 Downloads
drwxr-xr-x 2 root root   4096 Apr  3 13:34 Music
drwxr-xr-x 2 root root   4096 Apr  3 13:34 Pictures
drwxr-xr-x 2 root root   4096 Apr  3 13:34 Public
drwxr-xr-x 2 root root   4096 Apr  3 13:34 Templates
drwxr-xr-x 2 root root   4096 Apr  3 13:34 Videos^C
root@MyUbuntu:~#

（我必须尽快点击CTRL + C，否则ls命令将被执行多次）

为什么Linux和Windows之间存在这种差异？当此代码在Linux下运行时，是否可以显示远程PC的提示？

＆＃34; open＆＃34;的区别是什么？ Windows与Linux之间？

0 个答案: