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Annotation of researchv10dc/man/man1/tail.1, revision 1.1.1.1

1.1       root        1: .TH TAIL 1
                      2: .if t .ds pm \*(+-
                      3: .if n .ds pm +-
                      4: .CT 1 files
                      5: .SH NAME
                      6: tail, readslow, head \- print the last part of a file
                      7: .SH SYNOPSIS
                      8: .B tail
                      9: [
                     10: .I otion ...
                     11: .BR \*(pm \fInumber\fP[ lbc ][ rf ]
                     12: ]
                     13: [
                     14: .I file
                     15: ]
                     16: .SH DESCRIPTION
                     17: .I Tail
                     18: copies the named file to the standard output beginning
                     19: at a designated place, normally 10 lines from the end.
                     20: If no file is named, the standard input is used.
                     21: The options are
                     22: .TP
                     23: .BR \*(pm \fInumber\fP[ lbc ][ rf ]
                     24: Copying begins at position
                     25: .BI + number
                     26: measured from the beginning, or
                     27: .BI - number
                     28: from the end of the input.
                     29: .I Number
                     30: is counted in lines, 1K blocks or characters,
                     31: according to the appended flag
                     32: .LR l 
                     33: (default),
                     34: .LR b ,
                     35: or
                     36: .LR c .
                     37: Further flags
                     38: .L r
                     39: and
                     40: .L f
                     41: have the effect of options 
                     42: .B -r
                     43: and
                     44: .B -l .
                     45: .TP 
                     46: .B -r
                     47: Print lines from the end of the file in reverse order.
                     48: Default line count is unbounded.
                     49: .TP 
                     50: .B -f
                     51: Follow.
                     52: After printing to the end, keep watch and
                     53: print further data as it appears.
                     54: .TP
                     55: .BI "-c \*(pm" number
                     56: .br
                     57: .ns
                     58: .TP
                     59: .BI "-n \*(pm" number
                     60: .I Number
                     61: may be signed, with sign
                     62: .B -
                     63: assumed by default.
                     64: The effect is the same as
                     65: .BI \*(pm number c 
                     66: or
                     67: .BI \*(pm number l
                     68: [sic] respectively.
                     69: .SH EXAMPLES
                     70: .TP
                     71: .B tail file
                     72: Print the last 10 lines of a file.
                     73: .TP
                     74: .B tail +0f file
                     75: Print a file, and continue to watch
                     76: data accumulate as it grows.
                     77: A similar function is sometimes called
                     78: .I readslow.
                     79: .TP
                     80: .B sed 10q file
                     81: Print the first 10 lines of a file.
                     82: A similar function is sometimes called
                     83: .I head.
                     84: .SH "SEE ALSO"
                     85: .IR dd (1)
                     86: .SH BUGS
                     87: Tails relative to the end of the file
                     88: are treasured up in a buffer, and thus
                     89: are limited in length, even under option 
                     90: .BR -r .
                     91: .br
                     92: According to custom, option
                     93: .BI + number
                     94: counts lines from 1, and counts
                     95: blocks and characters from 0.

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