NAME
bzmore, bzless - file perusal filter for crt viewing
of bzip2 compressed text
SYNOPSIS
bzmore [ name ... ]
bzless [ name ... ]
NOTE
In the following description, bzless and
less can be used interchangeably with bzmore and
more.
DESCRIPTION
Bzmore is a filter which allows
examination of compressed or plain text files one screenful at a
time on a soft-copy terminal. bzmore works on files
compressed with bzip2 and also on uncompressed files. If a
file does not exist, bzmore looks for a file of the same
name with the addition of a .bz2 suffix.
Bzmore normally pauses after each screenful, printing
--More-- at the bottom of the screen. If the user then types a
carriage return, one more line is displayed. If the user hits a
space, another screenful is displayed. Other possibilities are
enumerated later.
Bzmore looks in the file /etc/termcap to determine
terminal characteristics, and to determine the default window size.
On a terminal capable of displaying 24 lines, the default window
size is 22 lines. Other sequences which may be typed when
bzmore pauses, and their effects, are as follows (i
is an optional integer argument, defaulting to 1) :
- i<space>
- display i more lines, (or another screenful if no
argument is given)
- ^D
- display 11 more lines (a ``scroll''). If i is given,
then the scroll size is set to i.
- d
- same as ^D (control-D)
- iz
- same as typing a space except that i, if present,
becomes the new window size. Note that the window size reverts back
to the default at the end of the current file.
- is
- skip i lines and print a screenful of lines
- if
- skip i screenfuls and print a screenful of lines
- q or Q
- quit reading the current file; go on to the next (if any)
- e or q
- When the prompt --More--(Next file: file) is printed,
this command causes bzmore to exit.
- s
- When the prompt --More--(Next file: file) is printed,
this command causes bzmore to skip the next file and continue.
- =
- Display the current line number.
- i/expr
- search for the i-th occurrence of the regular expression
expr. If the pattern is not found, bzmore goes on to
the next file (if any). Otherwise, a screenful is displayed,
starting two lines before the place where the expression was found.
The user's erase and kill characters may be used to edit the
regular expression. Erasing back past the first column cancels the
search command.
- in
- search for the i-th occurrence of the last regular
expression entered.
- !command
- invoke a shell with command. The character `!' in
"command" are replaced with the previous shell command. The
sequence "\!" is replaced by "!".
- :q or :Q
- quit reading the current file; go on to the next (if any) (same
as q or Q).
- .
- (dot) repeat the previous command.
The commands take effect immediately, i.e., it is not necessary
to type a carriage return. Up to the time when the command
character itself is given, the user may hit the line kill character
to cancel the numerical argument being formed. In addition, the
user may hit the erase character to redisplay the --More-- message.
At any time when output is being sent to the terminal, the user
can hit the quit key (normally control-\). Bzmore will stop
sending output, and will display the usual --More-- prompt. The
user may then enter one of the above commands in the normal manner.
Unfortunately, some output is lost when this is done, due to the
fact that any characters waiting in the terminal's output queue are
flushed when the quit signal occurs.
The terminal is set to noecho mode by this program so
that the output can be continuous. What you type will thus not show
on your terminal, except for the / and ! commands.
If the standard output is not a teletype, then bzmore
acts just like bzcat, except that a header is printed before
each file.
FILES
/etc/termcap Terminal
data base
SEE ALSO
more(1),
less(1),
bzip2(1),
bzdiff(1),
bzgrep(1)