ref: ca9d65e40b3f78d2580fff9ff1844bad1be08673
dir: /sys/src/cmd/venti/words/backup.example/
#!/bin/rc rfork e cd /usr/rsc . bkup.info fn x { echo x $* y=$1 if(~ $#$y 0){ $y=0 } echo venti/wrarena -o $2 $3 $$y end=`{venti/wrarena -o $2 $3 $$y | grep '^end offset ' | sed 's/^end offset //'} if(~ $#end 1 && ! ~ $$y $end){ $y=$end echo '#' `{date} >>bkup.info whatis $y >>bkup.info } } hget http://127.1:8000/index | awk ' /^index=/ { blockSize=0+substr($3, 11); } /^arena=/ { arena=substr($1, 7); } /^ arena=/ { start=0+substr($5, 2)-blockSize; printf("x %s %d %s\n", arena, start, $3); } ' |rc