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author | rsc <devnull@localhost> | 2005-07-13 03:49:41 +0000 |
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committer | rsc <devnull@localhost> | 2005-07-13 03:49:41 +0000 |
commit | 004aa293f360ea0f63ec50f5042f8c0fb2831e4f (patch) | |
tree | d44b801b47c82861d68d4045acf0bf7129ce6009 /man/man1/yesterday.1 | |
parent | 0c98da8bf8ea51d0288222f6c6ba3c125cf20f46 (diff) | |
download | plan9port-004aa293f360ea0f63ec50f5042f8c0fb2831e4f.tar.gz plan9port-004aa293f360ea0f63ec50f5042f8c0fb2831e4f.tar.bz2 plan9port-004aa293f360ea0f63ec50f5042f8c0fb2831e4f.zip |
Dump-like file system backup for Unix, built on Venti.
Diffstat (limited to 'man/man1/yesterday.1')
-rw-r--r-- | man/man1/yesterday.1 | 99 |
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diff --git a/man/man1/yesterday.1 b/man/man1/yesterday.1 new file mode 100644 index 00000000..b8a198ba --- /dev/null +++ b/man/man1/yesterday.1 @@ -0,0 +1,99 @@ +.TH YESTERDAY 1 +.SH NAME +yesterday \- print file names from the dump +.SH SYNOPSIS +.B yesterday +[ +.B -cCd +] [ +.B -n +.I daysago +] [ +.I \-date +] +.I files ... +.SH DESCRIPTION +.I Yesterday +prints the names of the +.I files +from the most recent dump. +Since dumps are done early in the morning, +yesterday's files are really in today's dump. +For example, if today is February 11, 2003, +.IP +.EX +yesterday /home/am3/rsc/.profile +.EE +.PP +prints +.IP +.EX +/dump/am/2003/0211/home/am3/rsc/.profile +.EE +.PP +In fact, the implementation is to select the most recent dump in +the current year, so the dump selected may not be from today. +.PP +By default, +.I yesterday +prints the names of the dump files corresponding to the named files. +The first set of options changes this behavior. +.TP +.B -c +Copy the dump files over the named files. +.TP +.B -C +Copy the dump files over the named files only when +they differ. +.TP +.B -d +Run +.B diff +to compare the dump files with the named files. +.PP +The +.I date +option selects other day's dumps, with a format of +1, 2, 4, 6, or 8 digits of the form +.IR d, +.IR dd , +.IR mmdd , +.IR yymmdd , +or +.IR yyyymmdd . +.PP +The +.B -n +option selects the dump +.I daysago +prior to the current day. +.PP +.I Yesterday +does not guarantee that the string it prints represents an existing file. +.SH EXAMPLES +.PP +See what's changed in the last week in your profile: +.IP +.EX +yesterday -d -n 7 ~/.profile +.EE +.PP +Restore your profile from yesterday: +.IP +.EX +yesterday -c ~/.profile +.EE +.SH FILES +.B /dump +.SH SOURCE +.B /usr/local/bin/yesterday +.SH SEE ALSO +.IR diff (1), +.IR hist (1) +.SH BUGS +Backups are only available on +.B amsterdam +and +.BR toil . +.PP +It's hard to use this command without singing. |