~ / bin is in PATH

[oj2wbRfi]

why the commands located in ~ / bin can be run from anywhere?

[kbw]

That's not necessarily true. However, many login scripts add ~/bin in the path.

You can see the path with:
env | egrep "\bPATH="

[oj2wbRfi]

it maybe I asked the question in incorrect way,

I mean If ~ / bin is in PATH it means that commands located in ~ / bin can be run from anywhere.

[kbw]

Yes.

[keskiverto]

From man bash:

Environment variable PATH
The search path for commands. It is a colon-separated list of directories in which the shell looks for commands

Command execution
...
If the [command] name is neither a shell function nor a builtin, and contains no slashes, bash searches each element of the PATH for a directory containing an executable file by that name.