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izmailoff/count_documents.sh

Created March 3, 2020 06:13
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Count MongoDB documents in all collections
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count_documents.sh
#!/bin/bash
db_name="$1"
if [ -z "$db_name" ]; then
echo "Usage: $0 <db_name or uri>"
exit 1
else
echo "Collections in db: $db_name."
mongo --quiet "$db_name" <<EOF
var collections = db.getCollectionNames();
for(var i = 0; i < collections.length; i++) {
var name = collections[i];
if(name.substr(0, 6) != 'system')
print(name + ': ' + db[name].count() + ' documents');
}
quit();
EOF
fi
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