shithub: rc

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add r: like redact(1) but clear a single numbered command's output in buffer

--- /dev/null

+++ b/bin/r

@@ -1,0 +1,12 @@

+#!/bin/rc

+rfork e

+x=1

+if(! ~ $#* 0)

+	x=$1

+awk -v 'x='^$x '

+/^; /{

+	a[++n] = NR

+} END {

+	cmd = a[n-x]","a[n-x+1]-1"d;"NR"d"

+	system("sed \''" cmd "\'' /dev/text >/tmp/a; mv /tmp/a /dev/text")

+}' /dev/text