ubuntu 12.04 命令行不显示用户名和路径了

ddd010

请各位帮我看看这是咋个回事。


Welcome to Ubuntu 12.04.2 LTS (GNU/Linux 3.5.0-23-generic x86_64)

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

  System information as of Wed Feb 26 02:08:34 CST 2014

  System load:  0.0                Processes:           177
  Usage of /:   76.1% of 31.55GB   Users logged in:     2
  Memory usage: 40%                IP address for eth0: 172.16.1.15
  Swap usage:   0%                 IP address for eth1: 192.168.1.12

  Graph this data and manage this system at https://landscape.canonical.com/

*** /dev/sdc1 will be checked for errors at next reboot ***
*** /dev/sdc2 will be checked for errors at next reboot ***
*** /dev/sdc3 will be checked for errors at next reboot ***

Last login: Wed Feb 26 02:07:37 2014 from 10.0.17.139
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amarant

设置环境变量PS1

ddd010

回复 2# amarant


    版主你还，我设置过PS1，

1. $ cat /etc/bash.bashrc
   
2. # System-wide .bashrc file for interactive bash(1) shells.
   
3. 
   
4. # To enable the settings / commands in this file for login shells as well,
   
5. # this file has to be sourced in /etc/profile.
   
6. 
   
7. # If not running interactively, don't do anything
   
8. [ -z "$PS1" ] && return
   
9. 
   
10. # check the window size after each command and, if necessary,
    
11. # update the values of LINES and COLUMNS.
    
12. shopt -s checkwinsize
    
13. 
    
14. # set variable identifying the chroot you work in (used in the prompt below)
    
15. if [ -z "$debian_chroot" ] && [ -r /etc/debian_chroot ]; then
    
16.     debian_chroot=$(cat /etc/debian_chroot)
    
17. fi
    
18. 
    
19. # set a fancy prompt (non-color, overwrite the one in /etc/profile)
    
20. PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
    
21. 
    
22. # Commented out, don't overwrite xterm -T "title" -n "icontitle" by default.
    
23. # If this is an xterm set the title to user@host:dir
    
24. #case "$TERM" in
    
25. #xterm*|rxvt*)
    
26. #    PROMPT_COMMAND='echo -ne "\033]0;${USER}@${HOSTNAME}: ${PWD}\007"'
    
27. #    ;;
    
28. #*)
    
29. #    ;;
    
30. #esac
    
31. 
    
32. # enable bash completion in interactive shells
    
33. #if [ -f /etc/bash_completion ] && ! shopt -oq posix; then
    
34. #    . /etc/bash_completion
    
35. #fi
    
36. 
    
37. # sudo hint
    
38. if [ ! -e "$HOME/.sudo_as_admin_successful" ] && [ ! -e "$HOME/.hushlogin" ] ; then
    
39.     case " $(groups) " in *\ admin\ *)
    
40.     if [ -x /usr/bin/sudo ]; then
    
41.         cat <<-EOF
    
42.         To run a command as administrator (user "root"), use "sudo <command>".
    
43.         See "man sudo_root" for details.
    
44. 
    
45.         EOF
    
46.     fi
    
47.     esac
    
48. fi
    
49. 
    
50. # if the command-not-found package is installed, use it
    
51. if [ -x /usr/lib/command-not-found -o -x /usr/share/command-not-found/command-not-found ]; then
    
52.         function command_not_found_handle {
    
53.                 # check because c-n-f could've been removed in the meantime
    
54.                 if [ -x /usr/lib/command-not-found ]; then
    
55.                    /usr/bin/python /usr/lib/command-not-found -- "$1"
    
56.                    return $?
    
57.                 elif [ -x /usr/share/command-not-found/command-not-found ]; then
    
58.                    /usr/bin/python /usr/share/command-not-found/command-not-found -- "$1"
    
59.                    return $?
    
60.                 else
    
61.                    printf "%s: command not found\n" "$1" >&2
    
62.                    return 127
    
63.                 fi
    
64.         }
    
65. fi

复制代码

ddd010

amarant 发表于 2014-02-25 18:56
设置环境变量PS1

找到原因了，是/etc/passwd的权限问题。

昨天把这个文件的权限改成了600，然后就处问题了。
应该是644.