====== zlibをソースからインストール ======

===== コマンド =====

<code>
$ wget https://www.zlib.net/zlib-1.2.11.tar.gz
$ tar xvf zlib-1.2.11.tar.gz
$ cd zlib-1.2.11/
$ mkdir build
$ cd build
$ ../configure --prefix=/opt/zlib/1.2.11
$ make
$ make install
</code>

===== スクリプト =====

<code>
#!/bin/bash

#############################################################
inst_ver=1.2.11
inst_target=/opt/zlib/${inst_ver}
arch_file="zlib-"${inst_ver}".tar.gz"
target_web="https://zlib.net/fossils/"${arch_file}
working_dir=$(cd $(dirname $0); pwd)/zlib-${inst_ver}
#############################################################

if [ -d ${inst_target} ];
then
    echo "${inst_target} is already exist"
    exit 0
fi

mkdir -p ${inst_target}
if [ $? -ne 0 ];
then
    echo "You do not have write permission on "${inst_target}"."
    echo "Scipt is aborted."
    exit 1
fi

rm -rf ${arch_file} ${working_dir}

wget ${target_web}
if [ $? -ne 0 ];
then
    echo "command is failed"
    echo "wget ${target_web}"
    exit 1
fi
mkdir ${working_dir}
tar xvf ${arch_file} -C ${working_dir} --strip-components 1
cd ${working_dir}
mkdir -p build
cd build
../configure --prefix=${inst_target}
make
make install
</code>