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①命令：svn diff -r版本1:版本2 --summarize
解释：比较两个版本的不同
如果要更新GPL库，可以通过此命令查看前后版本不同
[ll@team E50]$ svn diff -r433:431 --summarize
M ChangeLog.txt
M src/Makefile
··············································
在项目中一般版本信息放在log文件中
diff : 比较两个版本/路径的不同。
--summarize : 显示输出结果的概要
②命令：svn diff -rhead XXX
解释：对比当前本地的XXX文件(working copy)和缓存在.svn下的版本库文件的区别，通俗来讲就是显示出修改的内容。
例如：我在ChangeLog.txt中加了一句printf("=test=");
[ll@team E50]$ svn diff -rhead ./ChangeLog.txt
Index: ChangeLog.txt
=========================================================
--- ChangeLog.txt (revision 477) /*这个是缓存在版本库中的*/
+++ ChangeLog.txt (working copy) /*这个是我们修改的文件*/
@@ -9,6 +9,7 @@
*
********************************************************
--------------------------------------------------------
+ printf("=================test======================");
J 2018.08.19 r477
1.Make it the single image with model name
src/Makefile
③命令：svn diff
解释：该命令表示，显示出当前工作路径（区域）的所有变动信息。
补充：命令：svn help commit
查看svn的命令使用帮助
Valid options:
-q [--quiet] : print nothing, or only summary information
-N [--non-recursive] : obsolete; try --depth=files or --depth=immediates
--depth ARG : limit operation by depth ARG ('empty', 'files',
'immediates', or 'infinity')
--targets ARG : pass contents of file ARG as additional args
--no-unlock : don't unlock the targets
-m [--message] ARG : specify log message ARG
-F [--file] ARG : read log message from file ARG
--force-log : force validity of log message source
--editor-cmd ARG : use ARG as external editor
--encoding ARG : treat value as being in charset encoding ARG
--with-revprop ARG : set revision property ARG in new revision
using the name[=value] format
--changelist [--cl] ARG : operate only on members of changelist ARG
--keep-changelists : don't delete changelists after commit
--include-externals : Also commit file and dir externals reached by
recursion. This does not include externals with a
fixed revision. (See the svn:externals property)
Global options:
--username ARG : specify a username ARG
--password ARG : specify a password ARG
--no-auth-cache : do not cache authentication tokens
--non-interactive : do no interactive prompting (default is to prompt
only if standard input is a terminal device)
--force-interactive : do interactive prompting even if standard input
is not a terminal device
--trust-server-cert : accept SSL server certificates from unknown
certificate authorities without prompting (but only
with '--non-interactive')
--config-dir ARG : read user configuration files from directory ARG
--config-option ARG : set user configuration option in the format:
FILE:SECTION:OPTION=[VALUE]
For example:
servers:global:http-library=serf