YESTERDAY(1)                                         YESTERDAY(1)

     NAME
          yesterday - print file names from the dump

     SYNOPSIS
          yesterday [ -c ] [ -date ] files ...

     DESCRIPTION
          Yesterday prints the names of the 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 March 17, 1992,

               yesterday /adm/users

          prints

               /n/dump/1992/0317/adm/users

          In fact, the implementation is to select the most recent
          dump in the current year, so the dump selected may not be
          from today.

          With option -c, yesterday copies the dump file to the cur-
          rent directory.

          The date option selects other day's dumps, with a format of
          2, 4, 6, or 8 digits of the form dd, mmdd, yymmdd, or
          yyyymmdd.

          Yesterday does not guarantee that the string it prints rep-
          resents an existing file.

     EXAMPLES
          Back up to yesterday's MIPS binary of vc:

               cd /mips/bin
               yesterday -c vc

          Temporarily back up to March 1's MIPS C library to see if a
          program runs correctly when loaded with it:

               bind `{yesterday -0301 /mips/lib/libc.a} /mips/lib/libc.a
               rm v.out
               mk
               v.out

     FILES
          /n/dump

     SOURCE

     YESTERDAY(1)                                         YESTERDAY(1)

          /rc/bin/yesterday

     SEE ALSO
          fs(4)

     BUGS
          It's hard to use this command without singing.