38 lines
762 B
Markdown
38 lines
762 B
Markdown
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---
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title: filename_increment
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id: filename_increment
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weight: 90
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draft: false
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author: "people"
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---
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## NAME
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filename_increment
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## SYNOPSIS
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add a two digit increment to a filename
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## USAGE
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```
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local df = require "lib/dtutils.file"
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local result = df.filename_increment(filepath)
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```
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**filepath** - _string_ - filename to increment
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## DESCRIPTION
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**filename_increment** solves the problem of filename conflict by adding an
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increment to the filename. If the supplied filename has no increment then
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"01" is added to the basename. If the filename already has an increment, then
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1 is added to it and the filename returned.
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## RETURN VALUE
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**result** - _string_ - the incremented filename
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## LIMITATIONS
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The filename will be incremented to a maximum of 99.
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