thist.1 - plan9port - [fork] Plan 9 from user space
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       thist.1 (1419B)
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            1 .TH HIST 1
            2 .SH NAME
            3 hist, history \- print file names from the dump
            4 .SH SYNOPSIS
            5 .B hist
            6 [
            7 .B -vdu
            8 ] [
            9 .B -s
           10 .I yyyymmdd
           11 ]
           12 .I files ...
           13 .SH DESCRIPTION
           14 .I Hist
           15 prints the names, dates, and sizes of all versions of the named
           16 .IR files ,
           17 looking backwards in time,
           18 stored in the dump file system.
           19 If the file exists in the main tree, the first line of output will be its current state.
           20 For example,
           21 .IP
           22 .EX
           23 hist ~rsc/.bash_history
           24 .EE
           25 .PP
           26 produces
           27 .IP
           28 .EX
           29 .nf
           30 May 19 16:11:37 EDT 2005 /home/am3/rsc/.bash_history 6175
           31 May 18 23:32:16 EDT 2005 /dump/am/2005/0519/home/am3/rsc/.bash_history 5156
           32 May 17 23:32:31 EDT 2005 /dump/am/2005/0518/home/am3/rsc/.bash_history 5075
           33 May 16 07:53:47 EDT 2005 /dump/am/2005/0517/home/am3/rsc/.bash_history 5065
           34 .fi
           35 .EE
           36 .PP
           37 The
           38 .B -v
           39 option enables verbose debugging printout.
           40 .PP
           41 The 
           42 .B -d
           43 option causes
           44 .MR diff (1)
           45 .B -c
           46 to be run for each adjacent pair of dump files, while
           47 .B -b
           48 runs
           49 .IR diff
           50 .BR -cb .
           51 .PP
           52 The
           53 .B -u
           54 option causes times to be printed in GMT (UT) rather than local time.
           55 .PP
           56 Finally, the
           57 .B -s
           58 option
           59 sets the starting (most recent) date for the output.
           60 .SH EXAMPLES
           61 .PP
           62 Examine changes in block.c:
           63 .IP
           64 .EX
           65 hist -d block.c
           66 .EE
           67 .SH FILES
           68 .TF /dump
           69 .TP
           70 .B /dump
           71 by convention, root of dump file system
           72 .PD
           73 .SH SOURCE
           74 .B \*9/src/cmd/hist.c
           75 .SH SEE ALSO
           76 .MR yesterday (1) ,
           77 .MR vbackup (8)
           78 .SH BUGS
           79 Should be called
           80 .IR history ,
           81 but
           82 that name is taken by
           83 .MR sh (1) .