[ solved ]M1xx custom whit bash command

I write a custom M101 code that contains this symple code

but not work ... where is my error?

To make a custom M-code work there are several things that must be set up right.

1) The file must be saved in the directory specified in your ini file in the [RS274NGC] Section by USER_M_PATH

2) The file needs to be named with a capitol M and 1xx number, with no extension.

3) You have to set the permission of the file as executable.

4) The file must exist before starting Linuxcnc.

linuxcnc.org/docs/html/gcode/m-code.html#sec:M100-to-M199

I do a big mistake ..... I'm in a fresh installation of Ubuntu .... the right path are /k1/foo.txt not foo.text ....... the old habbit is hard to die....... sorry for steal time.