GNU bug report logs - #29939
HELP:enter a "ls"command,then the os connection will closed

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From: "lil373 <at> chinaunicom.cn" <lil373 <at> chinaunicom.cn>
To: Bernhard Voelker <mail <at> bernhard-voelker.de>, "29939 <at> debbugs.gnu.org" <29939 <at> debbugs.gnu.org>
Subject: bug#29939: 回复: Re: bug#29939: HELP:enter a "ls"command, then the os connection will closed
Date: Thu, 4 Jan 2018 08:58:34 +0800

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Hi:
    Thank you for your response。

"ls" is /bin/ls

the "/usr/bin/ls" is not exist


Is there any log I can see to find the reason?


Look forward to your reply。




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Email：lil373 <at> chinaunicom.cn
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发件人： Bernhard Voelker
发送时间： 2018-01-03 21:11
收件人： lil373 <at> chinaunicom.cn; 29939 <at> debbugs.gnu.org
主题： Re: bug#29939: HELP:enter a "ls"command, then the os connection will closed
On 01/02/2018 07:25 AM, lil373 <at> chinaunicom.cn wrote:
>     When I enter a "ls " command at the directory "/root",the OS connection will closed.
 
are you sure "ls" is /usr/bin/ls?
 
  $ type ls
  ls is /usr/bin/ls
 
I.e., it could be aliased to something weird, e.g. a shell function which
calls '/usr/bin/ls' under the hood but "exit"s in certain cases:
 
  $ _ls() { /usr/bin/ls ${1+"$@"} | grep . || exit; }
 
  $ alias ls=_ls
 
  $ type ls
  ls is aliased to `_ls'
 
  $ ls
  bin
  file
  home
  ...
 
  $ ls ENOENT
  /usr/bin/ls: cannot access 'ENOENT': No such file or directory
  logout
 
Other than that, I don't see how the spawned 'ls' process could lead
to a logout of the calling shell process.
 
Have a nice day,
Berny

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