I have a small shellscript, which checks a website, loads down some content, builds a small icon, and this icon is sent to a Button in FvwmButtons.
*FvwmShelf: (6x2, Frame 0, Padding 2 0, Left, Id "Meteo",Icon /path/to/meteo_fetch_icon_button.png)
And the only code-snippet in the shellscript, wich updates this Button:
FvwmCommand "CHANGE_ICON Meteo $DIR'meteo_fetch_icon_button.png'"
The called function “CHANGE_ICON” is this:
- I SendToModule FvwmButtons ChangeButton $0 Icon $1[/code]
The shellscript is called every 20 Minutes, and is the only one process, which changes this Icon with a cronjob.
And every 20 Minutes i receive an email from cron-daemon:
“No such file or directory FvwmCommand error in opening message fifo”
$ ps aux|grep FvwmCommand
jakob 20092 0.0 0.0 13404 704 ? S 00:27 0:00 /usr/lib/fvwm/2.6.5/FvwmCommandS 11 4 none 0 8
FvwmCommandS is running… and there are two Named-Pipes in the $FVWM_USERDIR…