coreutils: Special
19.2.7 Special settings
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‘min N’
Set the minimum number of characters that will satisfy a read until
the time value has expired, when ‘-icanon’ is set.
‘time N’
Set the number of tenths of a second before reads time out if the
minimum number of characters have not been read, when ‘-icanon’ is
set.
‘ispeed N’
Set the input speed to N.
‘ospeed N’
Set the output speed to N.
‘rows N’
Tell the tty kernel driver that the terminal has N rows.
Non-POSIX.
‘cols N’
‘columns N’
Tell the kernel that the terminal has N columns. Non-POSIX.
‘drain’
Apply settings after first waiting for pending output to be
transmitted. This is enabled by default for GNU ‘stty’. It is
useful to disable this option in cases where the system may be in a
state where serial transmission is not possible. For example, if
the system has received the ‘DC3’ character with ‘ixon’ (software
flow control) enabled, then ‘stty’ would block without ‘-drain’
being specified. May be negated. Non-POSIX.
‘size’
Print the number of rows and columns that the kernel thinks the
terminal has. (Systems that don’t support rows and columns in the
kernel typically use the environment variables ‘LINES’ and
‘COLUMNS’ instead; however, GNU ‘stty’ does not know anything about
them.) Non-POSIX.
‘line N’
Use line discipline N. Non-POSIX.
‘speed’
Print the terminal speed.
‘N’
Set the input and output speeds to N. N can be one of: 0 50 75 110
134 134.5 150 200 300 600 1200 1800 2400 4800 9600 19200 38400
‘exta’ ‘extb’. ‘exta’ is the same as 19200; ‘extb’ is the same as
38400. Many systems, including GNU/Linux, support higher speeds.
The ‘stty’ command includes support for speeds of 57600, 115200,
230400, 460800, 500000, 576000, 921600, 1000000, 1152000, 1500000,
2000000, 2500000, 3000000, 3500000, or 4000000 where the system
supports these. 0 hangs up the line if ‘-clocal’ is set.
Info Catalog
coreutils: Characters
coreutils: stty invocation