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98 lines
1.7 KiB
Groff
98 lines
1.7 KiB
Groff
.TH YESTERDAY 1
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.SH NAME
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yesterday \- print file names from the dump
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.SH SYNOPSIS
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.B yesterday
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[
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.B -cCd
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] [
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.B -n
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.I daysago
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] [
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.I \-date
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]
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.I files ...
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.SH DESCRIPTION
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.I Yesterday
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prints the names of the
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.I files
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from the most recent dump.
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Since dumps are done early in the morning,
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yesterday's files are really in today's dump.
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For example, if today is February 11, 2003,
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.IP
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.EX
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yesterday /home/am3/rsc/.profile
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.EE
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.PP
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prints
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.IP
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.EX
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/dump/am/2003/0211/home/am3/rsc/.profile
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.EE
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.PP
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In fact, the implementation is to select the most recent dump in
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the current year, so the dump selected may not be from today.
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.PP
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By default,
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.I yesterday
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prints the names of the dump files corresponding to the named files.
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The first set of options changes this behavior.
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.TP
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.B -c
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Copy the dump files over the named files.
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.TP
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.B -C
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Copy the dump files over the named files only when
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they differ.
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.TP
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.B -d
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Run
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.B diff
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to compare the dump files with the named files.
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.PP
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The
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.I date
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option selects other day's dumps, with a format of
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1, 2, 4, 6, or 8 digits of the form
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.IR d,
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.IR dd ,
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.IR mmdd ,
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.IR yymmdd ,
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or
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.IR yyyymmdd .
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.PP
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The
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.B -n
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option selects the dump
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.I daysago
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prior to the current day.
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.PP
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.I Yesterday
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does not guarantee that the string it prints represents an existing file.
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.SH EXAMPLES
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.PP
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See what's changed in the last week in your profile:
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.IP
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.EX
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yesterday -d -n 7 ~/.profile
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.EE
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.PP
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Restore your profile from yesterday:
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.IP
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.EX
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yesterday -c ~/.profile
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.EE
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.SH FILES
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.TF /dump
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.B /dump
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by convention, root of the dump file system
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.PD
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.SH SOURCE
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.B \*9/bin/yesterday
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.SH SEE ALSO
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.MR diff (1) ,
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.MR hist (1) ,
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.MR vbackup (8)
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.SH BUGS
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It's hard to use this command without singing.
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