| 87 |
|
.PP |
| 88 |
|
A count can be given as the number of lines to read before |
| 89 |
|
computing a result. |
| 90 |
< |
By default, |
| 90 |
> |
Normally, |
| 91 |
|
.I total |
| 92 |
< |
reads each file to its end before producing its result, but the |
| 92 |
> |
reads each file to its end before producing its result, |
| 93 |
> |
but this behavior may be overridden by inserting blank lines in |
| 94 |
> |
the input. |
| 95 |
> |
For each blank input line, total produces a result as if the |
| 96 |
> |
end-of-file had been reached. |
| 97 |
> |
If two blank lines immediately follow each other, total closes |
| 98 |
> |
the file and proceeds to the next one (after reporting the result). |
| 99 |
> |
The |
| 100 |
|
.I \-N |
| 101 |
|
option (where N is a decimal integer) tells |
| 102 |
|
.I total |
| 105 |
|
In addition, the |
| 106 |
|
.I \-r |
| 107 |
|
option can be specified to override reinitialization and thus |
| 108 |
< |
give a running total every N lines. |
| 108 |
> |
give a running total every N lines (or every blank line). |
| 109 |
|
If the end of file is reached, the current total is printed |
| 110 |
|
and the calculation is reset before the next file (with or without the |
| 111 |
|
.I \-r |
| 116 |
|
option can be used to specify the input and output tab character. |
| 117 |
|
The default tab character is TAB. |
| 118 |
|
.PP |
| 112 |
– |
At least one set of totals is produced for each input file. |
| 119 |
|
If no files are given, the standard input is read. |
| 114 |
– |
If a file contains any blank lines, then the total is reported |
| 115 |
– |
at that point as if it constituted the end of file, and the tallies |
| 116 |
– |
are reset. |
| 120 |
|
.SH EXAMPLE |
| 121 |
|
To compute the RMS value of colon-separated columns in a file: |
| 122 |
|
.IP "" .2i |
| 123 |
< |
total -t: -m -s2 input |
| 123 |
> |
total \-t: \-m \-s2 input |
| 124 |
|
.PP |
| 125 |
|
To produce a running product of values from a file: |
| 126 |
|
.IP "" .2i |
| 127 |
< |
total -p -1 -r input |
| 127 |
> |
total \-p \-1 \-r input |
| 128 |
|
.SH BUGS |
| 129 |
|
If the input files have varying numbers of columns, mean values |
| 130 |
|
will certainly be off. |
