ECHO

• Parameter
• -n : 不要在最後自動換行
• -e : 若字串中出現以下字元, 則特別加已處理, 而不將之當成一般文字輸出.
• \a : 發出警告聲
• \n : 刪除前一個字元
• \c : 最後不加上換行符號
• \f : 換行且游標停留在原來位置
• \n : 換行且游標移至行首
• \r : 游標移至行首, 但不換行
• \t : 插入 tab
• \v : 與 \f 相同
• \\ : 插入 \ 字元
• \nnn : 插入 nnn (八進位) 所代表的 ASCII字元

Example

SVN, first try.

Installation & Setup

• # yum install mod_dav_svn subversion
• # vim /etc/httpd/conf.d/subversion.conf
• make sure 2 lines upper this config file.
• LoadModule dav_svn_module     modules/mod_dav_svn.so
• LoadModule authz_svn_module   modules/mod_authz_svn.so
• modify these
• <Location /repos>                                  # root path for http connection on /svn
• DAV svn                                      # svn = connection method
• SVNPath /var/www/svn/repos     # local svn path
• AuthType Basic                            # 
• AuthName "Subversion repos"     # show login information
• AuthUserFile /etc/svn-auth-conf   # account & password  located file
• Require valid-user                          # svn login required password
• #Satisfy Any                                   # svn login password no required
• </Location>

Create first user

• # htpasswd -cm /etc/svn-auth-conf yourusername

Create other users

• # htpasswd -m /etc/svn-auth-conf anotherusername 

Establish version control area

• # mkdir /var/www/svn
• # cd /var/www/svn
• # svnadmin create mts
• # chown -R apache.apache mts
• # service httpd restart

Apache, httpd start FAIL

When no idea for httpd start FAIL without any error message.

Fixed,
check log file on /var/log/httpd/*, and there was a error log related NSS [error].
removed this kind of log file on /var/log/httpd/nss_error_log, and then httpd WORK. MY GOD.