11.參數傳遞

#! /bin/sh
echo "\$1 = $1"
echo "\$2 = $2"
echo "\$3 = $3"
echo "\$4 = $4"
echo "\$5 = $5"
echo "\$6 = $6"
echo "\$7 = $7"
echo "\$8 = $8"
echo "\$9 = $9"

#! /bin/sh
echo "\$10 = $10"


./pa2.sh A
結果:
$10 = A0

#! /bin/sh
# 使用法: ./install-app.sh Apache版本 PHP版本 MySQL安裝路徑

if [ $# -ne 0 -a $# -ne 3 ]; then
   echo "使用法: ./install-app.sh Apache版本 PHP版本 MySQL安裝路徑"
   echo "或"
   echo "./install-app.sh"
   exit
fi

# 設定版本編號及 MySQL 安裝路徑

if [ -n $1 ]; then
     ApacheVersion="$1"
else
     ApacheVersion="1.3.26"
fi

if [ -n $2 ]; then
     PHPVersion="$2"
else
     PHPVersion="4.1.2"
fi

if [ -n $3 ]; then
     MYSQLHOME="$3"
else
     MYSQLHOME="/home/mysql"
fi

# 解壓
tar xvzf apache_$ApacheVersion.tar.gz &&
tar xvzf php-$PHPVersion.tar.gz &&

# 設定 Apache
echo "Configure apache ...." &&
cd apache_$ApacheVersion &&
./configure --prefix=/usr/local/apache &&

# 設定/編譯/安裝 PHP
cd .. &&
cd php-$PHPVersion &&
./configure \
          --with-apache=../apache_$ApacheVersion \
          --with-mysql=$MYSQLHOME &&
make &&
make install &&
cd .. &&

# 設定/編譯/安裝 Apache
cd apache_$ApacheVersion &&
./configure \
          --prefix=/usr/local/apache \
          --activate-module=src/modules/php4/libphp4.a &&
make &&
make install &&

# 拷貝 php.ini 到 /usr/local/lib
cd ../php-$PHPVersion &&
cp -f php.ini-dist /usr/local/lib/php.ini

echo
echo "Done!"
echo