Splunk foreach command examples

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The Splunk foreach SPL command is pretty useful for building powerful queries. Here are some examples that I've created as a reference for how to use this powerful command.

The first example demonstrates MATCHSEG1. This can be used to construct a new field (matchseg1_field) from the part of the field name that matched the wildcard (field_*). The double quotes are required ("<<MATCHSEG1>>").

| makeresults count=1
| eval field_a="foo", field_b="bar", field_c="baz"
| eval matchseg1_field=""
| foreach field_*
    [ eval matchseg1_field=matchseg1_field + "<<MATCHSEG1>>" ]

I'll add more examples soon, maybe!