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using tail instread of tac | head | tac

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This commit is contained in:
Mattias Andrée 2012-07-17 00:14:49 +02:00
parent 9666175990
commit 0ee48b90de
1 changed files with 10 additions and 6 deletions
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12
ponysay
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@ -92,19 +92,23 @@ say() {
fi fi
} }
function htrunc
{
if [ "$PONYSAY_SHELL_LINES" = "" ]; then if [ "$PONYSAY_SHELL_LINES" = "" ]; then
PONYSAY_SHELL_LINES=2 PONYSAY_SHELL_LINES=2
fi fi
function htrunchead
{
head --lines=$(( `stty size <&2 | cut -d ' ' -f 1` - $PONYSAY_SHELL_LINES )) head --lines=$(( `stty size <&2 | cut -d ' ' -f 1` - $PONYSAY_SHELL_LINES ))
} }
function htrunctail
{
tail --lines=$(( `stty size <&2 | cut -d ' ' -f 1` - $PONYSAY_SHELL_LINES ))
}
if [ "$TERM" = "linux" ] || [ "$PONYSAY_TRUNCATE_HEIGHT" = 'yes' ] || [ "$PONYSAY_TRUNCATE_HEIGHT" = 'y' ] || [ "$PONYSAY_TRUNCATE_HEIGHT" = '1' ]; then if [ "$TERM" = "linux" ] || [ "$PONYSAY_TRUNCATE_HEIGHT" = 'yes' ] || [ "$PONYSAY_TRUNCATE_HEIGHT" = 'y' ] || [ "$PONYSAY_TRUNCATE_HEIGHT" = '1' ]; then
if [ "$PONYSAY_BOTTOM" = 'yes' ] || [ "$PONYSAY_BOTTOM" = 'y' ] || [ "$PONYSAY_BOTTOM" = '1' ]; then if [ "$PONYSAY_BOTTOM" = 'yes' ] || [ "$PONYSAY_BOTTOM" = 'y' ] || [ "$PONYSAY_BOTTOM" = '1' ]; then
exec "$cmd" -f "$pony" "${wrap:+-W$wrap}" | wtrunc | tac | htrunc | tac exec "$cmd" -f "$pony" "${wrap:+-W$wrap}" | wtrunc | htrunctail
else else
exec "$cmd" -f "$pony" "${wrap:+-W$wrap}" | wtrunc | htrunc exec "$cmd" -f "$pony" "${wrap:+-W$wrap}" | wtrunc | htrunchead
fi fi
else else
exec "$cmd" -f "$pony" "${wrap:+-W$wrap}" | wtrunc exec "$cmd" -f "$pony" "${wrap:+-W$wrap}" | wtrunc