| HIST(1) | HIST(1)
| NAME
| hist, history – print file names from the dump
SYNOPSIS
| `hist` [ `−vdu` ] [ `−s` yyyymmdd ] files ...
DESCRIPTION
| Hist prints the names, dates, and sizes of all versions of the named files, looking backwards in time, stored in the dump file system. If the file exists in the main tree, the first line of output will be its current state. For example,
| `hist ~rsc/.bash_history
`
produces
| `May 19 16:11:37 EDT 2005 /home/am3/rsc/.bash_history 6175 May 18 23:32:16 EDT 2005 /dump/am/2005/0519/home/am3/rsc/.bash_history 5156 May 17 23:32:31 EDT 2005 /dump/am/2005/0518/home/am3/rsc/.bash_history 5075 May 16 07:53:47 EDT 2005 /dump/am/2005/0517/home/am3/rsc/.bash_history 5065
`
The `−v` option enables verbose debugging printout.
The `−d` option causes diff(1) `−c` to be run for each adjacent pair of dump files, while `−b` runs diff `−cb`.
The `−u` option causes times to be printed in GMT (UT) rather than local time.
Finally, the `−s` option sets the starting (most recent) date for the output.
EXAMPLES
| Examine changes in block.c:
| `hist −d block.c`
FILES
| `/dump` by convention, root of dump file system
SOURCE
| `/usr/local/plan9/src/cmd/hist.c`
SEE ALSO
| yesterday(1), vbackup(8)
BUGS
| Should be called history, but that name is taken by sh(1).