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Editorial Team
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Asked: 2026-06-13T11:15:37+00:00

I am trying to export from a mongo database using the following mongoexport command

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I am trying to export from a mongo database using the following mongoexport command to search out text emoticons :

mongoexport -d <db> -c <col> -f text -q '{text: /.*:\)/}'

But when I try to execute the command mongoexport returns:

assertion: 10340 Failure parsing JSON string near: text: /.*:

I have tried to use the hex escape for the right paren:

mongoexport -d <db> -c <col> -f text -q '{text: /.*:\x29/}'

but I get the same error at the same location. It appears the mongoexport parser halts when it encounters ‘\’. I have a difficulty believing that mongoexport has this limitation (since it makes using regular expressions nearly impossible), so what am I doing wrong?

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1 Answer

  1. Editorial Team

    Can I ask why you are trying to escape the right paren? I tried your query without the escape before the right paren and it worked : '{text: /.*:)/}'

    As an alternative, if you need the escape in the query then you have to escape the escape symbol, since the string is getting parsed twice (the shell, then the database) : '{text: /.*:\\)/}'

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