From Newsgroup: comp.unix.shell

#!/bin/sh

<<'NOTES'

pauses your script then continues on either a single key press
or mouse click, works here with an xterm compatible terminal

Michael Sanders 2025

NOTES

pause() {
msg=${1:-"Press any key or click..."} # default message
printf '%s' "$msg"
old=$(stty -g)
printf '\033[?1000h'
stty raw -echo
dd bs=1 count=1 < /dev/tty 2>/dev/null
printf '\033[?1000l'
stty "$old"
}

pause "Your script has finished"

# eof
--
Mike Sanders
:wq
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From Newsgroup: comp.unix.shell

On 24.10.2025 02:11, Michael Sanders wrote:

#!/bin/sh

<<'NOTES'

pauses your script then continues on either a single key press
or mouse click, works here with an xterm compatible terminal

Michael Sanders 2025

NOTES

pause() {
msg=${1:-"Press any key or click..."} # default message
printf '%s' "$msg"
old=$(stty -g)
printf '\033[?1000h'
stty raw -echo
dd bs=1 count=1 < /dev/tty 2>/dev/null
printf '\033[?1000l'
stty "$old"
}

pause "Your script has finished"

# eof

What are all these ANSI terminal control commands doing?


Bash users may prefer terser and clearer solutions, like

pause() {
msg=${1:-"Press any key or click..."}
read -n1 -s -p "$msg"
echo
}

(Personally I'm using Ksh with its own variant of that.)

Janis

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From Newsgroup: comp.unix.shell

On 2025-10-24, Janis Papanagnou <janis_papanagnou+ng@hotmail.com> wrote:

On 24.10.2025 02:11, Michael Sanders wrote:

#!/bin/sh

<<'NOTES'

pauses your script then continues on either a single key press
or mouse click, works here with an xterm compatible terminal

Michael Sanders 2025

NOTES

pause() {
msg=${1:-"Press any key or click..."} # default message
printf '%s' "$msg"
old=$(stty -g)
printf '\033[?1000h'
stty raw -echo
dd bs=1 count=1 < /dev/tty 2>/dev/null
printf '\033[?1000l'
stty "$old"
}

pause "Your script has finished"

# eof

What are all these ANSI terminal control commands doing?

1000h enables mouse events being reported; 1000l disables it.

I've messed with these in the past in an attempt to disable "paste
bracketing" being turned on, when I didn't want that.

( "paste bracketing" is when you use the mouse to paste some
text into the terminal, and it is preceded by a certain prologue
sequence and terminated by an epilogue. Applications can detect
that and then use that to distinguish pasted text from typed.

For instance you know how in Vim you have to sometimes use
:set paste in order to capture pasted data verbatim (i.e. not
do any autoindent on the lines). That's the kind of situation where the
editor could recognize a paste automatically, and preserve its
formatting. )
--
TXR Programming Language: http://nongnu.org/txr
Cygnal: Cygwin Native Application Library: http://kylheku.com/cygnal
Mastodon: @Kazinator@mstdn.ca
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From Newsgroup: comp.unix.shell

On Fri, 24 Oct 2025 03:03:11 +0200, Janis Papanagnou wrote:

What are all these ANSI terminal control commands doing?

Kaz nailed it spot on down-thread.
--
Mike Sanders
:wq
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: comp.unix.shell

On 24.10.2025 03:31, Kaz Kylheku wrote:

On 2025-10-24, Janis Papanagnou <janis_papanagnou+ng@hotmail.com> wrote:

On 24.10.2025 02:11, Michael Sanders wrote:

printf '\033[?1000h'
printf '\033[?1000l'

What are all these ANSI terminal control commands doing?

1000h enables mouse events being reported; 1000l disables it.

Thanks.

Incidentally I encountered some similar codes just recently and
wondered what they are doing; the following I could not resolve

033 [ 1 ; 2 8 r
033 ( B
033 [ 4 l
033 [ ? 7 h
033 [ ? 1 2 l

Can someone shed some light on that?

In my attempts to find some lists of ANSI control codes I found
a lot of pages, but obviously none complete. - Any hints on that?

(The problem is surely that there's so many terminal types, and
that not all are supported or standardized?)

Janis

[...]

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From Newsgroup: comp.unix.shell

On Fri, 24 Oct 2025 04:08:02 +0200, Janis Papanagnou wrote:

Incidentally I encountered some similar codes just recently and wondered
what they are doing; the following I could not resolve

033 [ 1 ; 2 8 r 033 ( B 033 [ 4 l 033 [ ? 7
h 033 [ ? 1 2 l

Can someone shed some light on that?

033[1;28r Set scroll region from line 1 to 28
033(B Select default character set (ASCII)
033[4l Disable underline mode
033[?7h Enable line wrapping
033[?12l Disable blinking cursor

I *think* these are correct.

In my attempts to find some lists of ANSI control codes I found a lot of pages, but obviously none complete. - Any hints on that?

Everything I come across seems either incomplete or in some cases,
have differing meanings from one reference to another...

(The problem is surely that there's so many terminal types, and that not
all are supported or standardized?)

I think this too.
--
Mike Sanders
:wq
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: comp.unix.shell

On 24.10.2025 04:20, Michael Sanders wrote:

On Fri, 24 Oct 2025 04:08:02 +0200, Janis Papanagnou wrote:

Incidentally I encountered some similar codes just recently and wondered
what they are doing; the following I could not resolve

033 [ 1 ; 2 8 r 033 ( B 033 [ 4 l 033 [ ? 7
h 033 [ ? 1 2 l

Can someone shed some light on that?

033[1;28r Set scroll region from line 1 to 28

Darn. - I now recall I even used that one in one of my programs!
The problem was I took that from an isolated source, not one of
the many lists I inspected and where it was missing.

033(B Select default character set (ASCII)

This one is a bit misleading; is ASCII per definition the default?
(I wonder what happens in an ISO 8859-15 or UTF-8 encoded system
context.)

033[4l Disable underline mode
033[?7h Enable line wrapping
033[?12l Disable blinking cursor

I *think* these are correct.

Thanks.

In my attempts to find some lists of ANSI control codes I found a lot of
pages, but obviously none complete. - Any hints on that?

Everything I come across seems either incomplete or in some cases,
have differing meanings from one reference to another...

Oh! This sounds even worse.

(The problem is surely that there's so many terminal types, and that not
all are supported or standardized?)

I think this too.

Janis

--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: comp.unix.shell

Bug fix (of course!)

pause() {
msg=${1:-"Press any key or click..."} # default message
printf '%s' "$msg"
old=$(stty -g)
# enable mouse tracking (emits multiple bytes!)
printf '\033[?1000h'
stty raw -echo
# blocking: consume 1st byte only
dd bs=1 count=1 < /dev/tty >/dev/null 2>&1
# non-blocking: consume remaining bytes if any
dd bs=1 iflag=nonblock < /dev/tty >/dev/null 2>&1
# disable mouse tracking
printf '\033[?1000l'
stty "$old"
echo
}

On Fri, 24 Oct 2025 00:11:51 -0000 (UTC), Michael Sanders wrote:

#!/bin/sh

<<'NOTES'

pauses your script then continues on either a single key press or mouse click, works here with an xterm compatible terminal

Michael Sanders 2025

NOTES

pause() {
msg=${1:-"Press any key or click..."} # default message printf '%s'
"$msg"
old=$(stty -g)
printf '\033[?1000h'
stty raw -echo dd bs=1 count=1 < /dev/tty 2>/dev/null printf
'\033[?1000l'
stty "$old"
}

pause "Your script has finished"

# eof

--
Mike Sanders
:wq
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: comp.unix.shell

On Fri, 24 Oct 2025 02:20:25 -0000 (UTC), Michael Sanders wrote:

033[1;28r Set scroll region from line 1 to 28
033(B Select default character set (ASCII)
033[4l Disable underline mode
033[?7h Enable line wrapping
033[?12l Disable blinking cursor

I *think* these are correct.

<https://manpages.debian.org/console_codes(4)> covers just the Linux text console, which is already pretty extensive; I think most if not all the
GUI terminal emulators implement supersets of that.
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From Newsgroup: comp.unix.shell

Janis Papanagnou <janis_papanagnou+ng@hotmail.com> writes:
[...]

In my attempts to find some lists of ANSI control codes I found
a lot of pages, but obviously none complete. - Any hints on that?

(The problem is surely that there's so many terminal types, and
that not all are supported or standardized?)

I usually refer to this web page :

https://invisible-island.net/xterm/ctlseqs/ctlseqs.html
--
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
void Void(void) { Void(); } /* The recursive call of the void */
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: comp.unix.shell

On Fri, 24 Oct 2025 04:44:13 -0000 (UTC), Lawrence DrCOOliveiro wrote:

<https://manpages.debian.org/console_codes(4)> covers just the Linux
text console, which is already pretty extensive; I think most if not all
the GUI terminal emulators implement supersets of that.

Appreciate it.
--
Mike Sanders
:wq
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: comp.unix.shell

Final update for me, works well it seems. Thanks to all.

#!/bin/sh

<<'NOTES'

pauses your script then continues on either a single key press
or mouse click, works here with an xterm compatible terminal

updated with comments, etc

Michael Sanders 2025

001 default message
002 print formatted message
003 save terminal cfg
004 X10: enable mouse mode, use X10 or SGR not both
005 SGR: enable mouse mode
006 input byte-for-byte, no line buffering
007 blocking: consume 1st byte only
008 non-blocking: consume remaining bytes
009 X10: disable mouse mode, use X10 or SGR not both
010 SGR: disable mouse mode
011 restore terminal cfg
012 new-line after reset

NOTES

pause() {
msg=${1:-'Press any key or click...'} # 001
printf '%b' "$msg" # 002
cfg=$(stty -g) # 003
# printf '\033[?1000h' # 004
printf '\033[?1002h\033[?1006h' # 005
stty raw -echo # 006
dd bs=1 count=1 < /dev/tty >/dev/null 2>&1 # 007
dd bs=1 iflag=nonblock < /dev/tty >/dev/null 2>&1 # 008
# printf '\033[?1000l' # 009
printf '\033[?1002l\033[?1006l' # 010
stty "$cfg" # 011
echo # 012
}

for x in 3 2 1; do echo $x; done

pause 'Your script has finished'

# eof
--
Mike Sanders
:wq
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: comp.unix.shell

On 24.10.2025 12:23, Keith Thompson wrote:

Janis Papanagnou <janis_papanagnou+ng@hotmail.com> writes:
[...]

In my attempts to find some lists of ANSI control codes I found
a lot of pages, but obviously none complete. - Any hints on that?

(The problem is surely that there's so many terminal types, and
that not all are supported or standardized?)

I usually refer to this web page :

https://invisible-island.net/xterm/ctlseqs/ctlseqs.html

Noted. Looks good. Thanks.

Janis

--- Synchronet 3.21a-Linux NewsLink 1.2