diff options
| -rwxr-xr-x | rc/bin/console | 16 | ||||
| -rw-r--r-- | sys/man/8/kbdfs | 33 |
2 files changed, 44 insertions, 5 deletions
diff --git a/rc/bin/console b/rc/bin/console new file mode 100755 index 000000000..87f24a726 --- /dev/null +++ b/rc/bin/console @@ -0,0 +1,16 @@ +#!/bin/rc + +if(~ $#* 0) + *=(rc -i) + +a=$console(1) +if(! ~ $#a 0){ + if(! ~ $a /* '#'*) + a=/dev/eia^$a + if(test -e /dev/kbd){ + @{rfork ns; aux/kbdfs; exec $* </dev/cons >/dev/cons >[2=1]} | tee $a + exit + } +} +aux/kbdfs $a +exec $* </dev/cons >/dev/cons >[2=1] diff --git a/sys/man/8/kbdfs b/sys/man/8/kbdfs index 9ed2b9268..20619dfa7 100644 --- a/sys/man/8/kbdfs +++ b/sys/man/8/kbdfs @@ -1,6 +1,6 @@ .TH KBDFS 8 .SH NAME -kbdfs \- keyboard and console filesystem +kbdfs, console \- keyboard and console filesystem .SH SYNOPSIS .B aux/kbdfs [ @@ -12,7 +12,7 @@ kbdfs \- keyboard and console filesystem .B -m .I mntpnt ] [ -.I filename +.I consfile ] .nf @@ -24,6 +24,12 @@ kbdfs \- keyboard and console filesystem .B /dev/kbin .B /dev/kbmap .fi +.PP +.B console +[ +.I cmd +.I args... +] .SH DESCRIPTION .PP Started on @@ -81,6 +87,17 @@ mounts itself on otherwise on .B /dev (the default). +.PP +The +.B console +command executes +.I cmd +(defaults to the system shell) +under its own +.I kbdfs +instance providing a serial console if +.B $console +environment variable is set. .SS Console .PP Reading the @@ -151,14 +168,17 @@ to causes the characters to be printed on the console screen. .PP When a -.I filename +.I consfile is passed to .IR kbdfs (8) as its last argument, it reads and processes the characters from that file and forwards them to the .BR cons file with the same text processing applied as on keyboard input. -This is used on serial consoles. +This is used to provide a serial console when +.B $console +environment variable is set. (see +.IR plan9.ini (8)). .SS Keyboard A read on the .BR kbd @@ -254,11 +274,14 @@ to represent a control character. .IR cons (3), .IR keyboard (6), .IR utf (6), -.IR kbd (3) +.IR kbd (3), +.IR plan9.ini (8) .SH FILES .B /sys/lib/kbmap/* .SH SOURCE .B /sys/src/cmd/aux/kbdfs +.br +.B /rc/bin/console .SH HISTORY .I Kbdfs first appeared in 9front (May, 2011). |