V8/usr/man/man1/newer.1

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.TH NEWER 1
.SH NAME
newer \- test file modification dates
.SH SYNOPSIS
.B newer
file1 file2
.SH DESCRIPTION
.I Newer
yields a zero return code if
.I file1
exists and
.I file2
does not, or if
.I file1
and
.I file2
both exist and
.IR file1 's
modification time is at least as recent
as that of
.IR file2 .
It yields a non-zero return code otherwise.