251 lines
4.8 KiB
Groff
251 lines
4.8 KiB
Groff
.TH STTY 1
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.SH NAME
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stty \- set terminal parameters
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.SH SYNOPSIS
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.de SP
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.if t .sp 0.4
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.if n .sp
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..
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.in +4n
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.ti -4n
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.B stty
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.RB [ \-ag]
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.SP
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.ti -4n
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.B stty
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.I encoded-form
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.SP
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.ti -4n
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.B stty
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.I speed
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.B ispeed
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.I speed
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.B ospeed
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.I speed
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.B "cs5 cs6 cs7 cs8"
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.RB [ \- ] parenb
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.RB [ \- ] parodd
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.RB [ \- ] hupcl
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.RB [ \- ] cstopb
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.RB [ \- ] cread
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.RB [ \- ] clocal
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.RB [ \- ] ignbrk
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.RB [ \- ] brkint
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.RB [ \- ] ignpar
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.RB [ \- ] parmrk
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.RB [ \- ] inpck
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.RB [ \- ] istrip
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.RB [ \- ] inlcr
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.RB [ \- ] igncr
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.RB [ \- ] icrnl
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.RB [ \- ] ixon
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.RB [ \- ] ixoff
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.RB [ \- ] ixany
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.RB [ \- ] opost
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.RB [ \- ] onlcr
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.RB [ \- ] xtabs
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.RB [ \- ] onoeot
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.RB [ \- ] isig
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.RB [ \- ] icanon
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.RB [ \- ] iexten
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.RB [ \- ] echo
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.RB [ \- ] echoe
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.RB [ \- ] echok
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.RB [ \- ] echonl
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.RB [ \- ] noflsh
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.RB [ \- ] tostop
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.RB [ \- ] lflusho
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.BR eof =\fIc
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.BR eol =\fIc
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.BR erase =\fIc
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.BR erase =\fIc
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.BR intr =\fIc
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.BR kill =\fIc
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.BR quit =\fIc
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.BR susp =\fIc
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.BR start =\fIc
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.BR stop =\fIc
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.BR rprnt =\fIc
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.BR lnext =\fIc
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.BR flush =\fIc
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.BR min =\fIn
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.BR time =\fIn
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.B rows
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.I n
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.B cols
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.I n
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.B xpixels
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.I n
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.B ypixels
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.I n
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.B cooked
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.B raw
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.RB [ \- ] evenp
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.RB [ \- ] parity
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.RB [ \- ] oddp
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.RB [ \- ] nl
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.B ek
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.B sane
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.in -4n
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.SH DESCRIPTION
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.B Stty
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shows or changes the parameters of the terminal connected to standard input.
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.B Stty
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takes a myriad of arguments most of which are mapped directly to
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the flags and special characters described in
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.BR tty (4),
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so we won't describe them here.
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.PP
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.B Stty
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has three forms of operation. First, without any arguments
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.B stty
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shows all terminal attributes that are different from the default state.
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Option
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.B \-a
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makes
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.B stty
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print all terminal attributes, and
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.B \-g
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lets
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.B stty
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print the attributes in a special encoded form, a simple row of colon separated
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hexadecimal numbers.
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.PP
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In the second form of operation
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.B stty
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takes an encoded form as produced by the
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.B \-g
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option and sets the terminals attributes to its decoded value.
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.PP
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In the third form
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.B stty
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interprets a series of flags and parameters settings and modifies the
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terminal attributes accordingly. Flags can be given as
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.B icanon
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or
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.B \-icanon
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for instance, either setting or clearing the
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.B ICANON
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flag.
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Special character values can by set like
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.B "intr=^C"
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for example, which sets the interrupt character to CTRL-C. You can either
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use a real CTRL-C, or the two characters `^' and `C'. In any case
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it is probably necessary to use quotes to guard it from the shell:
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.BR "intr='^C'" .
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.PP
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A number alone is interpreted as a baud rate setting for both the input and
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output rate. The input or the output rate can be set separately with use
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of the
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.B ispeed
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and
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.B ospeed
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prefixes to the number. The character size can be set with
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.BR cs5 ,
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.BR cs6 ,
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.BR cs7
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or
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.BR cs8 .
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.PP
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The
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.B MIN
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and
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.B TIME
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value, the number of rows and columns, and the xpixels and ypixels of the
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window can also be set using one of the keywords
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.BR min ,
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.BR time ,
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.BR rows ,
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.BR cols ,
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.BR xpixels
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or
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.BR ypixels ,
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followed by a decimal number that is the value of the setting.
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.PP
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.B Stty
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accepts several keywords that are not named by corresponding flags or
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parameters in
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.BR tty (4).
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They set several attributes at once:
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.TP
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.B cooked
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Same as
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.BR "icrnl ixon opost onlcr isig icanon iexten echo" ,
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setting all the attributes that are needed for line oriented mode.
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.TP
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.B raw
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Same as
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.BR "\-icrnl \-ixon \-opost \-onlcr \-isig \-icanon \-iexten \-echo" ,
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setting all the attributes for a raw data channel.
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.TP
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.B evenp parity
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These synonyms are equal to
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.BR "cs7 parenb \-parodd" ,
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setting the line to 7 bits even parity.
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.TP
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.B oddp
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Same as
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.BR "cs7 parenb parodd" ,
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setting the line to 7 bits odd parity.
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.TP
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.B "\-parity \-evenp \-oddp"
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All synonyms for
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.BR "cs8 \-parenb" ,
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setting the line to 8 bits, no parity.
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.TP
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.B nl
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Same as
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.BR icrnl ,
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setting carriage return to line feed input translation.
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.TP
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.B \-nl
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Same as
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.BR "\-icrnl \-inlcr \-igncr" ,
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disabling any carriage return or line feed handling.
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.TP
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.B ek
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Set the
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.B ERASE
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and
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.B KILL
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special characters back to the default.
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.TP
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.B sane
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Set all attributes to the default except things like the line speed and
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parity, because their "sane" value is probably what it is right now.
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The default values are compiled into
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.B stty
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from the <termios.h> include file. Use
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.B "stty sane; stty -a"
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to know what they are.
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.SH FILES
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.TP 15n
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.B /etc/ttytab
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The
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.B init
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field of this file may contain an
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.B stty
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command to set the attributes to match an attached RS232 terminal or modem.
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.SH "SEE ALSO"
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.BR tty (4),
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.BR ttytab (5).
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.SH NOTES
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The
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.BR cooked ,
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.BR raw ,
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.BR rows ,
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.BR cols ,
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.BR xpixels
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and
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.BR ypixels
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keywords are MINIX 3 additions beyond the keywords defined by POSIX.
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.B Rows
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and
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.B cols
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are common UNIX extensions, however.
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There are more MINIX 3 specific flags that match the MINIX 3 specific attributes
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described in
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.BR tty (4).
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.SH AUTHOR
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Kees J. Bot <kjb@cs.vu.nl>
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