Pdf Not Generated using wkhtmltopdf using automated linux Bash Shell Script?

I am trying to generate pdf using automated bash shell script, that script after every min checks the content of a file url.txt which conatins all urls line by line and i am using wkhtmltopdf for pdf generation

But the problem is pdf is not generated in the automated process but if i manually invoke that script pdf is generated. If anyone knows the solution please provide it to me? Code of script is:

while read line; do wkhtmltopdf $line /var/www/images/Upload_fi开发者_开发问答les/name_of_file.pdf done < /var/www/url/url.txt

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If you run it in cron then the most likely reason that it wouldn't work is because lack of an X server. In that case one solution is to use Xvfb

Try running your wkhtmltopdf using xvfb-run like this in a no-X environment, say, by ssh-ing to localhost and verify that the $DISPLAY environment variable is not set:

$ xvfb-run -e /tmp/xvfb-error.log -s'-screen 0 1024x768x24' wkhtmltopdf somefile.html output.pdf

If that works fine then put in in a cron job that runs every 1 minute to test whether that one liner works under cron.

Otherwise check the /tmp/xvfb-error.log file to see if xvfb gives any error.

It would be helpful if you can state the error message that you got when it doesn't work