| .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 |
| .TF /dump |
| .B /dump |
| by convention, root of the dump file system |
| .PD |
| .SH SOURCE |
| .B \*9/bin/yesterday |
| .SH SEE ALSO |
| .IR diff (1), |
| .IR hist (1), |
| .IR vbackup (8) |
| .SH BUGS |
| It's hard to use this command without singing. |