orainstRoot.sh到底执行了哪些操作

      1 #!/bin/sh
      1 #!/bin/sh
      2 AWK=/bin/awk
      3 CHMOD=/bin/chmod
      4 CHGRP=/bin/chgrp
      5 CP=/bin/cp
      6 ECHO=/bin/echo
      7 MKDIR=/bin/mkdir  
      
      8 RUID=`/usr/bin/id|$AWK -F( '{print $1}'|$AWK -F= '{print $2}'`    --检查当前用户是否是  root
      9 if [ ${RUID} != "0" ];then            --root用户执行语句输出 是 0
     10    $ECHO "This script must be executed as root"     --输出
     11    exit 1
     12 fi
     13 if [ -d "/etc" ]; then
     14 $CHMOD 755 /etc;  --如果目录存在，给目录授权
     15 else
     16 $MKDIR -p /etc;  --如果目录不存在，创建目录
     17 fi
     
     18 if [ -f "/u01/app/oraInventory/oraInst.loc" ]; then  --如果文件存在
     19 $CP /u01/app/oraInventory/oraInst.loc /etc/oraInst.loc;  --复制文件到指定目录
     20 $CHMOD 644 /etc/oraInst.loc    --给目标文件授权
     21 else
     22 INVPTR=/etc/oraInst.loc
     23 INVLOC=/u01/app/oraInventory
     24 GRP=oinstall
     25 PTRDIR="`dirname $INVPTR`";    
     26 # Create the software inventory location pointer file
     27 if [ ! -d "$PTRDIR" ]; then    --如果目录不存在
     28  $MKDIR -p $PTRDIR;          --创建目录
     29 fi
     30 $ECHO "Creating the Oracle inventory pointer file ($INVPTR)";
     31 $ECHO    inventory_loc=$INVLOC > $INVPTR
     32 $ECHO    inst_group=$GRP >> $INVPTR
     33 chmod 644 $INVPTR   --给指定文件授权
     34 # Create the inventory directory if it doesn't exist
     35 if [ ! -d "$INVLOC" ];then
     36  $ECHO "Creating the Oracle inventory directory ($INVLOC)";
     37  $MKDIR -p $INVLOC;      --如果目录不存在，创建目录
     38 fi
     39 fi
     40 $ECHO "Changing permissions of /u01/app/oraInventory.
     41 Adding read,write permissions for group.
     42 Removing read,write,execute permissions for world.
     43 ";
     44 $CHMOD -R g+rw,o-rwx /u01/app/oraInventory;   --给目录授权
     45 if [ $? != 0 ]; then
     46  $ECHO "OUI-35086:WARNING: chmod of /u01/app/oraInventory
     47 Adding read,write permissions for group.
     48 ,Removing read,write,execute permissions for world.
     49  failed!";
     50 fi
     51 $ECHO "Changing groupname of /u01/app/oraInventory to oinstall.";
     52 $CHGRP -R oinstall /u01/app/oraInventory;   --给目录更改 主组
     53 if [ $? != 0 ]; then
     54  $ECHO "OUI-10057:WARNING: chgrp of /u01/app/oraInventory to oinstall failed!";
     55 fi
     56 $ECHO "The execution of the script is complete."