A.10.1.2 Line formats
Line formats control how each line taken from an input file is
output as part of a line group in if-then-else format.
For example, the following command outputs text with a one-column
change indicator to the left of the text. The first column of output
is `-' for deleted lines, `|' for added lines, and a space
for unchanged lines. The formats contain newline characters where
newlines are desired on output.
cvs diff \
To specify a line format, use one of the following options. You should
quote format, since it often contains shell metacharacters.
formats lines just from the first file.
formats lines just from the second file.
formats lines common to both files.
formats all lines; in effect, it sets all three above options simultaneously.
In a line format, ordinary characters represent themselves;
conversion specifications start with `%' and have one of the
stands for the contents of the line, not counting its trailing
newline (if any). This format ignores whether the line is incomplete.
stands for the contents of the line, including its trailing newline
(if any). If a line is incomplete, this format preserves its
stands for `%'.
where C is a single character, stands for C.
C may not be a backslash or an apostrophe.
For example, `%c':'' stands for a colon.
where O is a string of 1, 2, or 3 octal digits,
stands for the character with octal code O.
For example, `%c'\0'' stands for a null character.
where F is a
printf conversion specification,
stands for the line number formatted with F.
For example, `%.5dn' prints the line number using the
"%.5d". See section Line group formats, for
more about printf conversion specifications.
The default line format is `%l' followed by a newline character.
If the input contains tab characters and it is important that they line
up on output, you should ensure that `%l' or `%L' in a line
format is just after a tab stop (e.g. by preceding `%l' or
`%L' with a tab character), or you should use the `-t' or
Taken together, the line and line group formats let you specify many
different formats. For example, the following command uses a format
diff's normal format. You can tailor this command
to get fine control over
cvs diff \