登录环境故障解决

# 登录环境故障-bash-4.1的原因

这种一般是因为用户删除文件的时候，把当前用户的家目录的一些隐藏文件删除所导致的。导致.bashrc .bash_profile没了，与用户有关的环境变量也没了。

首先咱们先创建一个test用户

[root@summer home]# groupadd test
[root@summer home]# useradd -g test test
[root@summer home]# echo 123 | passwd test --stdin 
Changing password for user test.
passwd: all authentication tokens updated successfully.
[root@summer home]# chage -M 99999 test

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创建完成后会在home目录下自动生成一个test用户目录

[root@summer home]# ll
total 74400
drwxr-xr-x 8 root root     4096 Oct 12 15:32 code-server-3.6.0-linux-amd64
-rw-rw-rw- 1 root root 76150543 Oct 14 22:11 code-server-3.6.0-linux-amd64.tar.gz
-rw-r--r-- 1 root root    13857 Oct 10 14:07 get-docker.sh
drwxr-xr-x 5 root root     4096 Oct 31 17:55 summer
drwx------ 2 test test     4096 Nov 18 14:11 test
[root@summer home]# su test
[test@summer home]$ ll
total 74400
drwxr-xr-x 8 root root     4096 Oct 12 15:32 code-server-3.6.0-linux-amd64
-rw-rw-rw- 1 root root 76150543 Oct 14 22:11 code-server-3.6.0-linux-amd64.tar.gz
-rw-r--r-- 1 root root    13857 Oct 10 14:07 get-docker.sh
drwxr-xr-x 5 root root     4096 Oct 31 17:55 summer
drwx------ 2 test test     4096 Nov 18 14:11 test
[test@summer home]$ exit
exit

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[root@summer home]# rm -rf test/
[root@summer home]# ll
total 74396
drwxr-xr-x 8 root root     4096 Oct 12 15:32 code-server-3.6.0-linux-amd64
-rw-rw-rw- 1 root root 76150543 Oct 14 22:11 code-server-3.6.0-linux-amd64.tar.gz
-rw-r--r-- 1 root root    13857 Oct 10 14:07 get-docker.sh
drwxr-xr-x 5 root root     4096 Oct 31 17:55 summer
drwxr-xr-x 8 root root     4096 Oct 12 20:52 vuepress-theme-vdoing-master
[root@summer home]# su test
bash-4.2$ 
bash-4.2$ 
bash-4.2$ 
bash-4.2$

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可以看到切换test用户后命令行变为了bash-4.2$

# 解决办法

把用户老家root的模板/etc/skel下面的.bash_profile和.bashrc复制到出问题的用户

在home下新建test文件夹并赋予用户和用户组

[root@summer home]# mkdir test
[root@summer home]# ll
total 74400
drwxr-xr-x 8 root root     4096 Oct 12 15:32 code-server-3.6.0-linux-amd64
-rw-rw-rw- 1 root root 76150543 Oct 14 22:11 code-server-3.6.0-linux-amd64.tar.gz
-rw-r--r-- 1 root root    13857 Oct 10 14:07 get-docker.sh
drwxr-xr-x 5 root root     4096 Oct 31 17:55 summer
drwxr-xr-x 2 root root     4096 Nov 18 14:24 test
[root@summer home]# chown -R test:test test/
[root@summer home]# ll
total 74400
drwxr-xr-x 8 root root     4096 Oct 12 15:32 code-server-3.6.0-linux-amd64
-rw-rw-rw- 1 root root 76150543 Oct 14 22:11 code-server-3.6.0-linux-amd64.tar.gz
-rw-r--r-- 1 root root    13857 Oct 10 14:07 get-docker.sh
drwxr-xr-x 5 root root     4096 Oct 31 17:55 summer
drwxr-xr-x 2 test test     4096 Nov 18 14:24 test

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复制.bash_profile和.bashrc

[root@summer home]# cd test/
[root@summer test]# su test
bash-4.2$ pwd
/home/test
bash-4.2$ cp /etc/skel/.bash* ~
bash-4.2$ exit
exit
[root@summer test]# su test
[test@summer ~]$

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