#!/bin/sh LOG_FP="/root/updater_$(date +%s).log" exec &>"$LOG_FP" UPDATER_BASE=$(dirname ${0}) cd "$UPDATER_BASE" YAFT_PID=0 ./yaft /tmp/pty.txt & YAFT_PID=$! pty="" for i in $(seq 1 10); do pty="$(cat /tmp/pty.txt)" if [ -n "$pty" ]; then break; fi sleep 1 done if [ -z "$pty" ]; then echo "openpty failed" kill -INT $YAFT_PID exit 0; fi echo "will open pty $pty" rm "/tmp/_fifo" mkfifo "/tmp/_fifo" tee "$pty" < /tmp/_fifo & exec &>"/tmp/_fifo" echo "success" echo "This is a demo update package which does nothing." echo "enjoy" for i in $(seq 10 -1 1); do echo "will done in ${i} seconds." sleep 1 done exit 0