CentOS7.6：ANY COMMAND无手动输入

Question

我的系统是CentOS7.6

我不能用 man 来搜索任何东西

$ man pthread_create
No manual entry for pthread_create
$ man bind
No manual entry for bind
$ man man
No manual entry for man
$ man ls
No manual entry for ls

我已经尝试更新，伙计仍然无法正常工作

# yum update
Loaded plugins: fastestmirror, langpacks, product-id, search-disabled-repos, subscription-manager

This system is not registered with an entitlement server. You can use subscription-manager to register.

Repository epel is listed more than once in the configuration
Loading mirror speeds from cached hostfile
 * centos-sclo-rh: mirrors.ustc.edu.cn
 * centos-sclo-sclo: mirrors.njupt.edu.cn
No packages marked for update

# yum install man-pages
Loaded plugins: fastestmirror, langpacks, product-id, search-disabled-repos, subscription-manager

This system is not registered with an entitlement server. You can use subscription-manager to register.

Repository epel is listed more than once in the configuration
Loading mirror speeds from cached hostfile
 * centos-sclo-rh: mirrors.ustc.edu.cn
 * centos-sclo-sclo: mirrors.njupt.edu.cn
Package man-pages-3.53-5.el7.noarch already installed and latest version
Nothing to do

我怎样才能让man恢复正常？

Answer 1

问题是环境价值

$ echo $MANPATH
/opt/rh/devtoolset-11/root/usr/share/man

环境值链接到 gcc，这是错误的

yum reinstall man-pages

检查人安装路径

# whereis man
man: /usr/bin/man /usr/share/man /usr/share/man/man7/man.7.gz /usr/share/man/man1/man.1.gz /usr/share/man/man1p/man.1p.gz

将其添加到您的环境值中

export MANPATH=/usr/share/man

问题将得到解决

---

您需要做的最后一件事是将其添加到~/.bashrc

MANPATH=/usr/share/man

或者/etc/bashrc

export MANPATH=/usr/share/man

编辑配置文件时要小心，编辑前一定要备份