diff options
Diffstat (limited to 'Doc/help/ttyctl')
| -rw-r--r-- | Doc/help/ttyctl | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/Doc/help/ttyctl b/Doc/help/ttyctl index 937fdf913..bcccb3453 100644 --- a/Doc/help/ttyctl +++ b/Doc/help/ttyctl @@ -1,22 +1,22 @@ ttyctl [ -fu ] - The -f option freezes the tty (i.e. terminal or terminal emula- - tor), and -u unfreezes it. When the tty is frozen, no changes + The -f option freezes the tty (i.e. terminal or terminal emula- + tor), and -u unfreezes it. When the tty is frozen, no changes made to the tty settings by external programs will be honored by - the shell, except for changes in the size of the screen; the + the shell, except for changes in the size of the screen; the shell will simply reset the settings to their previous values as soon as each command exits or is suspended. Thus, stty and sim- - ilar programs have no effect when the tty is frozen. Freezing - the tty does not cause the current state to be remembered: in- + ilar programs have no effect when the tty is frozen. Freezing + the tty does not cause the current state to be remembered: in- stead, it causes future changes to the state to be blocked. - Without options it reports whether the terminal is frozen or + Without options it reports whether the terminal is frozen or not. - Note that, regardless of whether the tty is frozen or not, the - shell needs to change the settings when the line editor starts, - so unfreezing the tty does not guarantee settings made on the - command line are preserved. Strings of commands run between - editing the command line will see a consistent tty state. See + Note that, regardless of whether the tty is frozen or not, the + shell needs to change the settings when the line editor starts, + so unfreezing the tty does not guarantee settings made on the + command line are preserved. Strings of commands run between + editing the command line will see a consistent tty state. See also the shell variable STTY for a means of initialising the tty - before running external commands and/or freezing the tty around + before running external commands and/or freezing the tty around a single command. |