Cron won't run hackrf_transfer
Closed this issue · 3 comments
Have you read the HackRF documentation?
yes
What outcome were you hoping for?
cron find hackrf_transfer & execute.
hackrf_transfer executes from command like without a problem.
What outcome actually happened?
cron debug output shows:
/bin/sh: 1: hackrf_transfer: not found
Crontab -l shows
-
-
-
-
- hackrf_transfer -h >/home/pi/error.log 2>&1
-
-
-
What operating systems are you seeing the problem on?
raspbian legacy lite
What is the output of hackrf_info?
hackrf_info version: git-cc7f5996 (0.5)
Are you using any third-party software?
NO
Hackrf was installed with
cmake
make
sudo make install
sudo ldconfig
Are you using any third-party hardware?
NO
It is likely that cron cannot find hackrf_transfer - from a quick Google search:
Ensure the script or command your cron job tries to run has the appropriate permissions and that you use absolute paths. Cron jobs run in a limited environment with a minimal PATH definition, so specifying the full path to any command or script is crucial.
It is likely that cron cannot find hackrf_transfer - from a quick Google search: Ensure the script or command your cron job tries to run has the appropriate permissions and that you use absolute paths. Cron jobs run in a limited environment with a minimal PATH definition, so specifying the full path to any command or script is crucial.
What path do I use for hackrf_transfer?
It is likely that cron cannot find hackrf_transfer - from a quick Google search: Ensure the script or command your cron job tries to run has the appropriate permissions and that you use absolute paths. Cron jobs run in a limited environment with a minimal PATH definition, so specifying the full path to any command or script is crucial.
What path do I use for hackrf_transfer?
On your command line / terminal type: which hackrf_transfer and it will show you the full path of where the command is located. You'll want to use that full path when calling it from cron.
On a side note, it's kind of unusual to be calling hackrf_transfer from a schedule like cron, and I'm assuming the example you listed above is just for testing since -h doesn't do anything but print the help text.