DR800 view command output

[34973]

how i can see command output on dr800s??
i try use script run from sd card, witch redirect command output to file and store to sd card. But this doesn't work

this is the script:
# !/bin/bash
mkdir -p /media/mmcblk0p1/System/.test
ls -al / > /media/mmcblk0p1/System/.test/output.txt

can any one help me? I have a few cross complied application i don't know if it working or not

[Iñigo]

Originally Posted by 34973

how i can see command output on dr800s??
i try use script run from sd card, witch redirect command output to file and store to sd card. But this doesn't work

this is the script:
# !/bin/bash
mkdir -p /media/mmcblk0p1/System/.test
ls -al / > /media/mmcblk0p1/System/.test/output.txt

can any one help me? I have a few cross complied application i don't know if it working or not

I was thinking this same problem a few days ago. There isn't an easy way to see the logs.
Maybe compile zenity or xdialog and create a program link which opens the output.

Other solution could be to create the output file on another not hidden directory (not inside a directory whose name starts with a dot) and open it as a normal document.

Anyway, if you are serious about creating software for DR800 you should use the environment and the emulator to test the programs. There is a virtual machine with the proper environment ready to run.

[Mr. X]

Redirection does work, I uploaded a script that ran dmesg and a bunch of other commands in another thread. One thing to watch out for is filesystem write caching... In the emulator especially make sure to throw a 'sync' command in at the end or the writes never reach disk.

Also, remember that most standard commands are busybox not the normal unix variants... I'm not sure if mkdir supports -p for example... If you use the emulator you can ssh in and run your script and get useful feedback

[34973]

Originally Posted by Mr. X

Redirection does work, I uploaded a script that ran dmesg and a bunch of other commands in another thread. One thing to watch out for is filesystem write caching... In the emulator especially make sure to throw a 'sync' command in at the end or the writes never reach disk.

Also, remember that most standard commands are busybox not the normal unix variants... I'm not sure if mkdir supports -p for example... If you use the emulator you can ssh in and run your script and get useful feedback

Can you please give me example how can i use redirection?

[Mr. X]

The script attached to https://www.mobileread.com/forums/sho...&postcount=155 uses redirection

[Iñigo]

Originally Posted by 34973

Can you please give me example how can i use redirection?

Look at the first message in this thread:

ls -al / > /media/mmcblk0p1/System/.test/output.txt

See the > char here? that redirects previous command (ls, list files, similar to dir command on MSDOS) output to a file.

Another example could be:

ls -al / > /media/mmcblk0p1/System/.test/output.txt 2>&1

that redirects both standard output and standard error to the file.

But note that if the destination file is inside a hidden directory (one that starts with a dot, as .test) you won't be able to navigate into it with the DR800, as the device don't show those folders.
Read the second message for other alternatives.

[34973]

Thanks! It work like charm!
Problem was mostly in editor what i used, script was good but in dos mod