cwebp does not run as a cron job

[ahmadtr...@gmail.com]

 I have a bash script that checks a directory and if there is no webp file for each jpg or png file, creates it using cwebp. this script runs perfectly when I call it manually, however when I schedule a cron job to, for example, run it every minute, cwebp does nothing. other commands in my bash script run without a problem, like rm. so I know this is not a permission issue. can anyone help me? what am I missing? I'm using Ubuntu 14.04.

here is my script:

#!/bin/bash




uploadDir=/home/behnood/webptest/*


for file in $uploadDir
do
   
    if [[ $file = *.jpg || $file = *.png ]]
    then
        if ! [[ -f "$file".webp ]]
        then
           # there is no .webp file for this .jpg file, let's create it!
            cwebp "$file" -o "$file".webp
   
        fi
    elif [[ $file = *.webp ]]
    then
        if ! [[ -f "${file%.*}" ]]
        then
            #we have a .webp file but the original .jpg file is missing. let's delete it!
            rm "$file"
        fi
    fi
done

[Pascal Massimino]

Hi,

On Sat, Jan 9, 2016 at 12:41 AM, <ahmadtr...@gmail.com> wrote:

 I have a bash script that checks a directory and if there is no webp file for each jpg or png file, creates it using cwebp. this script runs perfectly when I call it manually, however when I schedule a cron job to, for example, run it every minute, cwebp does nothing. other commands in my bash script run without a problem, like rm. so I know this is not a permission issue. can anyone help me? what am I missing? I'm using Ubuntu 14.04.

here is my script:

#!/bin/bash




uploadDir=/home/behnood/webptest/*


for file in $uploadDir
do
   
    if [[ $file = *.jpg || $file = *.png ]]
    then
        if ! [[ -f "$file".webp ]]
        then
           # there is no .webp file for this .jpg file, let's create it!
            cwebp "$file" -o "$file".webp

maybe it's because your script can't access 'cwebp' or doesn't know where to find it when in the 'cron' context.

Did you check your $PATH variable to make sure it can reach 'cwebp'. Or tried, for the sake of experiment, to copy

'cwebp' into /usr/bin and see if that's the right diagnostic?

hope it helps,

skal/

 

   
        fi
    elif [[ $file = *.webp ]]
    then
        if ! [[ -f "${file%.*}" ]]
        then
            #we have a .webp file but the original .jpg file is missing. let's delete it!
            rm "$file"
        fi
    fi
done

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