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.TH ZMORE 1 
.SH NAME 
zmore \- file perusal filter for crt viewing of compressed text 
.SH SYNOPSIS 
.B zmore 
[ name ...  ] 
.SH DESCRIPTION 
.I  Zmore 
is a filter which allows examination of compressed or plain text files 
one screenful at a time on a soft-copy terminal. 
.I zmore 
works on files compressed with 
.I compress, pack 
or 
.I gzip, 
and also on uncompressed files. 
If a file does not exist, 
.I zmore 
looks for a file of the same name with the addition of a .gz, .z or .Z suffix. 
.PP 
.I Zmore 
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. 
.PP 
.I Zmore 
looks in the file 
.I /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. 
To use a pager other than the default 
.I more, 
set environment variable PAGER to the name of the desired program, such as 
.I less. 
.PP 
Other sequences which may be typed when 
.I zmore 
pauses, and their effects, are as follows (\fIi\fP is an optional integer 
argument, defaulting to 1) : 
.PP 
.IP \fIi\|\fP 
display 
.I i 
more lines, (or another screenful if no argument is given) 
.PP 
.IP ^D 
display 11 more lines (a ``scroll''). 
If 
.I i 
is given, then the scroll size is set to \fIi\|\fP. 
.PP 
.IP d 
same as ^D (control-D) 
.PP 
.IP \fIi\|\fPz 
same as typing a space except that \fIi\|\fP, if present, becomes the new 
window size.  Note that the window size reverts back to the default at the 
end of the current file. 
.PP 
.IP \fIi\|\fPs 
skip \fIi\|\fP lines and print a screenful of lines 
.PP 
.IP \fIi\|\fPf 
skip \fIi\fP screenfuls and print a screenful of lines 
.PP 
.IP "q or Q" 
quit reading the current file; go on to the next (if any) 
.PP 
.IP "e or q" 
When the prompt --More--(Next file:  
.IR file ) 
is printed, this command causes zmore to exit. 
.PP 
.IP s 
When the prompt --More--(Next file:  
.IR file ) 
is printed, this command causes zmore to skip the next file and continue. 
.PP  
.IP = 
Display the current line number. 
.PP 
.IP \fIi\|\fP/expr 
search for the \fIi\|\fP-th occurrence of the regular expression \fIexpr.\fP 
If the pattern is not found, 
.I zmore 
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. 
.PP 
.IP \fIi\|\fPn 
search for the \fIi\|\fP-th occurrence of the last regular expression entered. 
.PP 
.IP !command 
invoke a shell with \fIcommand\|\fP.  
The character `!' in "command" are replaced with the 
previous shell command.  The sequence "\\!" is replaced by "!". 
.PP 
.IP ":q or :Q" 
quit reading the current file; go on to the next (if any) 
(same as q or Q). 
.PP 
.IP . 
(dot) repeat the previous command. 
.PP 
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. 
.PP 
At any time when output is being sent to the terminal, the user can 
hit the quit key (normally control\-\\). 
.I Zmore 
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. 
.PP 
The terminal is set to 
.I 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. 
.PP 
If the standard output is not a teletype, then 
.I zmore 
acts just like 
.I zcat, 
except that a header is printed before each file. 
.SH FILES 
.DT 
/etc/termcap		Terminal data base 
.SH "SEE ALSO" 
more(1), gzip(1), zdiff(1), zgrep(1), znew(1), zforce(1), gzexe(1)