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page_title: filesha1 - Functions - Configuration Language | |
description: |- | |
The filesha1 function computes the SHA1 hash of the contents of | |
a given file and encodes it as hex. | |
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# `filesha1` Function | |
`filesha1` is a variant of [`sha1`](/language/functions/sha1) | |
that hashes the contents of a given file rather than a literal string. | |
This is similar to `sha1(file(filename))`, but | |
because [`file`](/language/functions/file) accepts only UTF-8 text it cannot be used to | |
create hashes for binary files. |