Bash clear commands path cache

有时候，命令从$PATH环境变量的一个路径移动到另一个路径时，执行命令，bash提示文件不存在。这是由于Bash有缓存机制。

Tobu:

bash does cache the full path to a command. You can verify that the command you are trying to execute is hashed with the type command:
$ type svnsync
svnsync is hashed (/usr/local/bin/svnsync)
To clear the entire cache:
$ hash -r
Or just one entry:
$ hash -d svnsync
For additional information, consult help hash and man bash.

执行hash -d commands，清除该命令的缓存即可。

参考:

https://unix.stackexchange.com/questions/5609/how-do-i-clear-bashs-cache-of-paths-to-executables

ILD