TH HISTORY 1
SH NAME
history \- print file names from the dump
SH SYNOPSIS
B history
[
B -vDu
] [
B -d
I dumpfilesystem
] [
B -s
I yyyymmdd
]
I files ...
SH DESCRIPTION
I History
prints the names, dates, and sizes, and modifier of all versions of the named
IR 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,
IP
EX
history /adm/users
EE
PP
produces
IP
EX
May 14 15:29:18 EDT 2001 /adm/users 10083 [adm]
May 14 15:29:18 EDT 2001 /n/dump/2001/0515/adm/users 10083 [adm]
May 11 17:26:24 EDT 2001 /n/dump/2001/0514/adm/users 10481 [adm]
May 10 16:40:51 EDT 2001 /n/dump/2001/0511/adm/users 10476 [adm]
...
EE
PP
The
B -v
option enables verbose debugging printout.
PP
The
B -D
option causes
IR diff (1)
B -n
to be run for each adjacent pair of dump files, while
B -b
runs
IR diff
BR -nb .
PP
The
B -u
option causes times to be printed in GMT (UT) rather than local time.
PP
The
B -d
option selects some other dump filesystem such as
IR /n/bootesdump .
PP
Finally, the
B -s
option
sets the starting (most recent) date for the output.
SH EXAMPLES
PP
Check how often a user has been logged in.
IP
EX
history /usr/ches/tmp
EE
SH FILES
B /n/dump
SH SOURCE
B /sys/src/cmd/history.c
SH SEE ALSO
IR fs (4)
br
IR yesterday (1)
