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 if list then
          do something here
      elif list then
          do another thing here
      else
         do something else here
      fi   
EX1:
#!/bin/sh
SYSTEM=`uname -s`    #»ñÈ¡²Ù×÷ϵͳÀàÐÍ£¬ÎÒ±¾µØÊÇlinux
if [ $SYSTEM = "Linux" ] ; then     #Èç¹ûÊÇlinuxµÄ»°´òÓ¡linux×Ö·û´®
echo "Linux"
elif [ $SYSTEM = "FreeBSD" ] ; then   
echo "FreeBSD"
elif [ $SYSTEM = "Solaris" ] ; then
echo "Solaris"
else
echo "What?"
fi     #ifend
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1 ×Ö·û´®ÅжÏ
str1 = str2¡¡¡¡¡¡¡¡¡¡¡¡µ±Á½¸ö´®ÓÐÏàͬÄÚÈÝ¡¢³¤¶ÈÊ±ÎªÕæ
str1 != str2¡¡¡¡¡¡¡¡¡¡ µ±´®str1ºÍstr2²»µÈÊ±ÎªÕæ
-n str1¡¡¡¡¡¡¡¡¡¡¡¡¡¡ µ±´®µÄ³¤¶È´óÓÚ0Ê±ÎªÕæ(´®·Ç¿Õ)
-z str1¡¡¡¡¡¡¡¡¡¡¡¡¡¡ µ±´®µÄ³¤¶ÈΪ0Ê±ÎªÕæ(¿Õ´®)
str1¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡   µ±´®str1Ϊ·Ç¿ÕÊ±ÎªÕæ
2 Êý×ÖµÄÅжÏ
int1 -eq int2¡¡¡¡¡¡¡¡Á½ÊýÏàµÈÎªÕæ
int1 -ne int2¡¡¡¡¡¡¡¡Á½Êý²»µÈÎªÕæ
int1 -gt int2¡¡¡¡¡¡¡¡int1´óÓÚint2ÎªÕæ
int1 -ge int2¡¡¡¡¡¡¡¡int1´óÓÚµÈÓÚint2ÎªÕæ
int1 -lt int2¡¡¡¡¡¡¡¡int1СÓÚint2ÎªÕæ
int1 -le int2¡¡¡¡¡¡¡¡int1СÓÚµÈÓÚint2ÎªÕæ
3 ÎļþµÄÅжÏ
-r file¡¡¡¡¡¡¡¡¡¡Óû§¿É¶ÁÎªÕæ
-w file¡¡¡¡¡¡¡¡¡¡Óû§¿ÉÐ´ÎªÕæ
-x file¡¡¡¡¡¡¡¡¡¡Óû§¿ÉÖ´ÐÐÎªÕæ
-f file¡¡¡¡¡¡¡¡¡¡ÎļþΪÕý¹æÎļþÎªÕæ
-d file¡¡¡¡¡¡¡¡¡¡ÎļþÎªÄ¿Â¼ÎªÕæ
-c file¡¡¡¡¡¡¡¡¡¡ÎļþΪ×Ö·ûÌØÊâÎļþÎªÕæ
-b file¡¡¡¡¡¡¡¡¡¡ÎļþΪ¿éÌØÊâÎļþÎªÕæ
-s file¡¡¡¡¡¡¡¡¡¡Îļþ´óС·Ç0Ê±ÎªÕæ
-t file¡¡¡¡¡¡¡¡¡¡µ±ÎļþÃèÊö·û(ĬÈÏΪ1)Ö¸¶¨µÄÉ豸ΪÖÕ¶ËÊ±ÎªÕæ
3 ¸´ÔÓÂß¼­ÅжÏ
-a ¡¡ ¡¡¡¡¡¡¡¡¡¡ Óë
-o¡¡¡¡¡¡¡¡¡¡¡¡¡¡ »ò
!¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡·Ç
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linux Äں˰汾¼°²¹¶¡ËµÃ÷

ת×Ô£ºhttp://lkml.org/lkml/2005/8/2/242
--------------------------------------------------------------------------------------------
from
Jesper Juhl <>
Subject
Documentation - how to apply patches for various trees
Date
Tue, 2 Aug 2005 23:32:20 +0200
Hi,
How to apply the -rc, -git, ......

Qt for symbian»·¾³´î½¨£¨Linux£©

Programming your application or library based on Qt has always had the promise that you can deploy your application on many different platforms. Development of those applications can, likewise, happen on many different platforms. QtCreator runs on Windows, Mac & Linux among others.
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