CentOS command line Bash:.....:command not found solution

Command line Bash:.....:command not found solution (almost all commands) command line Input command execution post "Bash:....:command not found" this is due to system path setup issues, path is not set to,    The system will not be able to find the exact command. 1. Enter at the command line: Export Path=/usr/bin:/usr/sbin:/bin:/sbin This ensures that command line commands are temporarily available.    Do not close the terminal until the command is finished.    2, enter vi/etc/profile at the command line to see if you have set the path attribute separately. In the VI editor, enter the export path= $PATN: /usr/java1.8/bin:/usr/java1.8/jre/bin Originally in the configuration of Java environment variable write error to export path= $PATH: Usr/java1.8/bin:/usr/java1.8/jre/bin : Wq Save this file in the terminal input source profile is the command line Bash:.....:command not      Found solution 3, close the terminal, re-open the terminal, Input command execution, OK, all normal. My Linux system is setting the path property to cause a command not found error when setting the Java environment variable