Linux diffÓëpatchµÄÉîÈë·ÖÎö
Linux diffÓëpatchµÄÉîÈë·ÖÎö
http://blog.csdn.net/vrix/archive/2009/08/25/4483906.aspx
diffµÄÊä³ö¸ñʽ·ÖΪ´«Í³¸ñʽºÍͳһ¸ñʽ
1)diffµÄ´«Í³¸ñʽÊä³ö.
############################################
cat before.txt
Êä³ö:
This is a line to be deleted
This is a line that will be changed
This is a line that will be unchanged
cat after.txt
Êä³ö:
This is a line that has been changed
This is a line that will be unchanged
This is a line that has been added
############################################
diff before.txt after.txt
Êä ³ö:
1,2c1
< This is a line to be deleted
< This is a line that will be changed
---
> This is a line that has been changed
3a3
> This is a line that has been added
############################################
×¢ÊÍ:
´«Í³¸ñʽµÄÊä³ö
1,2c1ÊÇÖ¸Ìæ»»µÚ1¸öÎļþµÄµÚ1,2Ðе½µÚ2¸öÎļþµÄµÚ2ÐÐ,ÕâÀïµÄ1,2ÊÇÖ¸µÚ1¸öÎļþµÄµÚ1,2ÐÐ,cÊÇÌæ»»µÄÒâ˼,×îºóµÄ1ÊǵÚ2¸öÎļþµÄµÚ1ÐÐ
<ºÅÊÇÖ¸µÚ1¸öÎļþ¸ü¸Ä»òɾ³ýµÄÐÐ
---ºÅÊÇ·Ö¸îÁ½¸öÎļþ
>ºÅÊǵÚ2¸öÎļþÖÐÔö¼Ó»òɾ³ýµÄÐÐ
3a3ÊÇÖ¸½«µÚ2¸öÎļþµÄµÚ3ÐвåÈëµ½µÚÒ»¸öÎļþµÄµÚ3ÐÐ
Ò²¾ÍÊÇ˵µÚ1¸öÎļþµÄ:
< This is a line to be deleted
< This is a line that will be changed
±»Ìæ»»³ÉµÚ2¸öÎļþµÄ:
> This is a line that has been changed
ÓÉÓÚµÚ1¸öÎļþµÄµÚ3Ðк͵Ú2¸öÎļþµÄµÚ2ÐÐÒ»ÖÂ,ËùÒÔ²»×öÐÞ¸Ä.
ÓÉÓÚµÚ2¸öÎļþµÄµÚ3ÐÐÊǵÚ1¸öÎļþËù²»¾ßÓеÄ,ËùÒÔÔÚµÚ1¸öÎļþµÄ×îºóÒ»ÐÐÔö¼Ó:
> This is a line that has been added
2)patchÃüÁîµÄÓ¦ÓÃ
ÓÃdiffµÄ´«Í³¸ñʽÊä³ö:
#################################
diff before.txt after.txt >mypatch.txt
#################################
ÓÃpatchÐÞ²¹before.txtÎļþ,ʹbefore.txtºÍafter.txtÒ»ÖÂ.
#################################
cat mypatch.txt |patch before.txt
Êä³ö:
patching file before.txt
#################################
±È½ÏÁ½¸öÎļþ£¬ÏÖÔÚÊÇÒ»ÖµÄÁË.
#################################
cmp before.txt after.txt
#################################
ÓÃpatchÃüÁî»Ö¸´before.txt.
#################################
patch -R before.txt <mypatch.txt
Êä³ö:
patching file before.txt
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