Bash commands not found

Question

I use CentOS 7 and I install anaconda and some tools, after that  some basic command like clear which not work.

[zhilevan@localhost ~]$ clear
bash: clear: command not found...

when I echo $PATH I see below results

[zhilevan@localhost ~]$ echo $PATH
/usr/lib64/qt-3.3/bin:/home/zhilevan/perl5/bin:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin:/home/zhilevan/.local/bin:/home/zhilevan/bin

Also, when I try to  sudo yum install which but It says already installed.

Also I try export PATH=$PATH:/bin:/usr/local/bin but not correct.

where is the problem and how can I solve this problem?

forquare · Accepted Answer

It looks as though some of your commands have been modified/removed outside of yum.

You need to reinstall the missing commands like so:

yum reinstall which

You can give multiple packages as you identify them:

yum reinstall which clear

If you find that lots of commands have been removed, it may be easier to reinstall your whole system.

uxking · Answer

yum install ncurses

or
dnf install ncurses

clear command should then be available

Laith Leo Alobaidy · Answer

I would try to search for the missing command by its name.

find / -name which

Assuming 'which' is the missing command, then you can add it to you PATH.

Bash commands not found

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