pgrep 程式A > /dev/null || 程式B
==
An OR list has the form
command1 ││ command2
command2 is executed if and only if command1 returns a non-zero exit
status. The return status of AND and OR lists is the exit status of the
last command executed in the list.
sop://211.152.34.35:3912/6002
/usr/bin/sp-sc -u 帳號 密碼 sop://211.152.34.35:3912/6002 3900 8900
xine http://localhost:8900
其中
3900 local port
8900 player port
jpeg2yuv -f 25 -j frame-%05d.jpg -I p > temp.yuv
transcode -i temp.yuv -o final.avi -x yuv4mpeg -y xvid4
**注意：jpg 檔大小必須為 352x240 或 符合 yuv 格式規定
