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#!/bin/sh
xwdcommon='-nobdrs'
xwdroot='-root'
INFMT=pnm
OUTFMT=png
STOREDIR="${HOME}/.screenshots"
SHOTDATE="$(date +%Y.%m.%d-%H.%M.%S)"
have()
{
type $1 >/dev/null 2>&1 && return 0
}
parse_options()
{
local OPT OPTARG OPTIND fmt fmtlist prefix
while getopts d:f:bhlqs OPT; do
# escape meta
OPTARG=${OPTARG%%[;\\\$]*}
case ${OPT} in
b) xwdcommon="${xwdcommon} -frame" ;;
d) delay="${OPTARG}" ;;
f)
OUTFMT="${OPTARG}"
unset INFMT
for fmt in pnm pbm pgm ppm; do
have "${fmt}to${OUTFMT}" && { INFMT=${fmt}; break; }
done
[ -z "${INFMT}" ] && usage
;;
l)
prefix=$(type ppmtoppm 2>/dev/null | \
sed 's:ppmtoppm is \(.*\)ppmtoppm:\1:')
if [ -z "${prefix}" ]; then
echo 'Cannot find image converters. Make sure that netpbm are installed'
exit 1
fi
fmtlist=$(echo ${prefix}/p[nbgp]mto* | tr ' ' '\n' | \
sed -E 's:^.*/(pnm|pbm|pgm|ppm)to::g')
echo Supported output formats:
echo ${fmtlist}
exit 0
;;
q) xwdcommon="${xwdcommon} -silent";;
s) unset xwdroot ;;
*) usage ;;
esac
done
OPTC=$((${OPTIND} - 1))
}
usage()
{
echo "usage: ${0##*/} [-bhlqs] [-d sec] [-f outfmt] [shotname]"
echo ' -b when selecting a window, grab wm border too'
echo ' -d wait sec seconds before taking a shot'
echo ' -f set output format'
echo ' -h display this help and exit'
echo ' -l list output formats'
echo ' -q be silent'
echo ' -s interactively choose a window'
echo
echo "By default screenshots stored in ${STOREDIR}"
echo
exit 1
}
parse_options ${1+"$@"}
shift ${OPTC}
if [ -z ${@+1} ]; then
SHOTNAME="${STOREDIR}/screenshot-${SHOTDATE}.${OUTFMT}"
else
SHOTNAME=$1
shift
[ -z ${@+1} ] || usage
fi
[ -d "${STOREDIR}" ] || mkdir "${STOREDIR}"
[ -n "${delay}" ] && sleep "${delay}"
xwd ${xwdcommon} ${xwdroot} | xwdtopnm 2>/dev/null | \
"${INFMT}to${OUTFMT}" 2>/dev/null > "${SHOTNAME}"
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