Bash Scripts: Unterschied zwischen den Versionen
Amir (Diskussion | Beiträge) |
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| (5 dazwischenliegende Versionen von einem anderen Benutzer werden nicht angezeigt) | |||
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<pre> | <pre> | ||
#!/bin/bash | #!/bin/bash | ||
PREPARE=; ENTER=; CLEAN=; VERBOSE=; | PREPARE=; ENTER=; CLEAN=; VERBOSE=; X=; Y=; | ||
RUN=/bin/bash | RUN="/bin/bash" | ||
CONFIG= | CONFIG= | ||
DISPLAY= | |||
function verbose { [ $VERBOSE ] && echo $@; $@ 1> /dev/null; } | function verbose { [ $VERBOSE ] && echo $@; $@ 1> /dev/null; } | ||
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function error { echo "error: $1" >&2; exit 1; } | function error { echo "error: $1" >&2; exit 1; } | ||
function usage { | function usage { | ||
[ "$1" ] && error "$1" | |||
cat <<EOF | cat <<EOF | ||
Usage: chrtsetup [ | Usage: chrtsetup [OPTIONS] [CHRTCONF] | ||
-v, --verbose print actions | -v, --verbose print actions | ||
-p, --prepare perform mount sequence only | -p, --prepare perform mount sequence only | ||
-c, --clean perform umount sequence only | -c, --clean perform umount sequence only | ||
-e, --enter enter chroot only | -e, --enter enter chroot only | ||
-x DISPLAY configures the xsession defined by DISPLAY | |||
to allow all connections from localhost | |||
(xhost +localhost) and sets the DISPLAY | |||
variable inside the chroot accordingly to | |||
support connecting X11 clients from inside the | |||
chroot to your X11 server. | |||
-y DISPLAY does the same like -x but additionally sets the | |||
window manager name of the xsession to a | |||
non-reparenting window manager (wmname LG3D) to | |||
avoid problems with some jdk versions running | |||
with awesome wm. (shouldn't interfere with | |||
conventional use-cases :) | |||
-r, --run=COMMAND run specified COMMAND after entering the chroot | -r, --run=COMMAND run specified COMMAND after entering the chroot | ||
CHRTCONF is the name of the chroot configuration stored in /etc/chrtsetup/. | CHRTCONF is the name of the chroot configuration stored in /etc/chrtsetup/. | ||
If neither -p, -c nor -e is set | If neither -p, -c nor -e is set -pce is assumed. | ||
Examples: | Examples: | ||
chrtsetup ubuntu | chrtsetup ubuntu # executed setup defined in /etc/chrtsetup/ubuntu, enter chroot and clean up after | ||
chrtsetup -c ubuntu | chrtsetup -c ubuntu # undo mounts performed to setup the chroot | ||
chrtsetup -pe ubuntu | chrtsetup -pe ubuntu # mount, enter but do not clean up after | ||
chrtsetup -x localhost:0.0 --run="xterm" ubuntu # configure the xsession and start xterm inside the chroot | |||
EOF | EOF | ||
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done | done | ||
} | } | ||
function setupX { | |||
RUN="DISPLAY=$1 $RUN" | |||
export DISPLAY=$1 | |||
xhost +localhost | |||
[ $Y ] && wmname LG3D | |||
} | |||
### main | |||
[ $# -eq 0 ] && usage | [ $# -eq 0 ] && usage | ||
eval set -- "`getopt -o vpecr --long verbose,prepare,enter,clean,run -n 'chrtsetup' -- \"$@\"`" | eval set -- "`getopt -o vpecr:x:y: --long verbose,prepare,enter,clean,run: -n 'chrtsetup' -- \"$@\"`" | ||
while true ; do | while true ; do | ||
case "$1" in | case "$1" in | ||
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-c|--clean) CLEAN=0 ; shift ;; | -c|--clean) CLEAN=0 ; shift ;; | ||
-r|--run) RUN="$2" ; shift 2;; | -r|--run) RUN="$2" ; shift 2;; | ||
-x|--x) X=0; DISPLAY="$2" ; shift 2;; | |||
-y|--y) Y=0; DISPLAY="$2" ; shift 2;; | |||
--) shift ; break ;; | --) shift ; break ;; | ||
esac | esac | ||
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CONFIG=$1 | CONFIG=$1 | ||
[ -z $CONFIG ] && usage | [ -z $CONFIG ] && usage "CONFIG is mandatory" | ||
[ ! "$CLEAN" -a ! "$PREPARE" -a ! "$ENTER" ] && CLEAN=set PREPARE=set ENTER=set | [ ! "$CLEAN" -a ! "$PREPARE" -a ! "$ENTER" ] && CLEAN=set PREPARE=set ENTER=set | ||
source "/etc/chrtsetup/$CONFIG" | source "/etc/chrtsetup/$CONFIG" | ||
[ "$X" -o "$Y" ] && setupX $DISPLAY | |||
[ $PREPARE ] && prepare | [ $PREPARE ] && prepare | ||
[ $ENTER ] && chroot "$CHROOT" "$RUN" | [ $ENTER ] && chroot "$CHROOT" bash -c "$RUN" | ||
[ $CLEAN ] && clean | [ $CLEAN ] && clean | ||
</pre> | </pre> | ||
== gstrtpcast == | == gstrtpcast == | ||
Grab audio from a pulse monitor src and stream it via rtp. though pulseaudio is capable of streaming sound via rtp it is not able to compress the stream. additionally its command line tools are crap and its not nearly as flexible as gstreamer. | Grab audio from a pulse monitor src and stream it via rtp. though pulseaudio is capable of streaming sound via rtp it is not able to compress the stream. additionally its command line tools are crap and its not nearly as flexible as gstreamer. | ||
You need to load the module for the alsa dummy device (snd_dummy) before running the script. | |||
<pre> | <pre> | ||
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[[Kategorie:CLI]] | [[Kategorie:CLI]] | ||
[[Kategorie:Howto]] | |||