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Editorial Team
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Asked: 2026-05-14T15:34:08+00:00

I have written a Perl script that runs as a daily crontab job that

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I have written a Perl script that runs as a daily crontab job that uploads files to Amazon S3 via CURL. I want the output of the cron job emailed to me which works fine but I don’t want that email to include messages related to the CURL upload (only those message my script is outputting). Here are the CURL related messages I’m seeing in the daily email right now:

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed

  0  230M    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
  0  230M    0     0    0  544k      0  1519k  0:02:35 --:--:--  0:02:35 1807k
  0  230M    0     0    0 1744k      0  1286k  0:03:03  0:00:01  0:03:02 1342k
  1  230M    0     0    1 2880k      0  1219k  0:03:13  0:00:02  0:03:11 1250k
  1  230M    0     0    1 4016k      0  1198k  0:03:17  0:00:03  0:03:14 1218k
  2  230M    0     0    2 5168k      0  1186k  0:03:19  0:00:04  0:03:15 1202k
  2  230M    0     0    2 6336k      0  1181k  0:03:19  0:00:05  0:03:14 1157k
  3  230M    0     0    3 7488k      0  1177k  0:03:20  0:00:06  0:03:14 1147k
  3  230M    0     0    3 8592k      0  1167k  0:03:22  0:00:07  0:03:15 1142k
  4  230M    0     0    4 9744k      0  1166k  0:03:22  0:00:08  0:03:14 1145k
  4  230M    0     0    4 10.6M      0  1163k  0:03:23  0:00:09  0:03:14 1142k
  5  230M    0     0    5 11.7M      0  1161k  0:03:23  0:00:10  0:03:13 1140k
  5  230M    0     0    5 12.8M      0  1158k  0:03:23  0:00:11  0:03:12 1133k
  6  230M    0     0    6 13.9M      0  1155k  0:03:24  0:00:12  0:03:12 1138k
  6  230M    0     0    6 15.0M      0  1155k  0:03:24  0:00:13  0:03:11 1138k
  7  230M    0     0    7 16.1M      0  1152k  0:03:25  0:00:14  0:03:11 1131k
  7  230M    0     0    7 17.2M      0  1152k  0:03:25  0:00:15  0:03:10 1132k
  7  230M    0     0    7 18.4M      0  1152k  0:03:24  0:00:16  0:03:08 1140k

I am using a simple Perl system() call to invoke CURL. Does anyone know what command line argument I can supply CURL to turn off the reporting of the upload progress?

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1 Answer

  1. Editorial Team

    For some reason my version of CURL wasn’t recognizing the -s or –silent which I know makes no sense. As @Friedo suggested I tried using backticks or the qx operator which also didn’t get rid of unwanted upload progress reporting. Ultimately I went the very unelegant route of adding >/dev/null 2>&1 to the end of the system call which resolved the issue.

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