Script to download JDK / JRE / Java binaries from Oracle website from terminal / shell / command line / command prompt

jdk_download.sh

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### Shell script to download Oracle JDK / JRE / Java binaries from Oracle website using terminal / command / shell prompt using wget.
### You can download all the binaries one-shot by just giving the BASE_URL.
### Script might be useful if you need Oracle JDK on Amazon EC2 env.
### Script is updated for every JDK release.

### Features:-
# 1. Resumes a broken / interrupted [previous] download, if any.
# 2. Renames the file to a proper name with including platform info.
# 3. Downloads the following from Oracle Website with one shell invocation.
#    a. Windows 64 and 32 bit;
#    b. Linux 64 and 32 bit;
#    c. API Docs;
#    d. You can add more to the list of downloads are per your requirement.
### Another option: 
###### curl -L -O -H "Cookie: oraclelicense=accept-securebackup-cookie" -k "http://download.oracle.com/otn-pub/java/jdk/8u60-b27/jdk-8u60-linux-x64.tar.gz"

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## Latest JDK8 version released on 19th January, 2016: JDK8u71
BASE_URL_8=http://download.oracle.com/otn-pub/java/jdk/8u72-b15/jdk-8u72

## Earlier versions:
## v8u71 => http://download.oracle.com/otn-pub/java/jdk/8u71-b15/jdk-8u71
## v8u65 => http://download.oracle.com/otn-pub/java/jdk/8u65-b17/jdk-8u65
## v8u60 => http://download.oracle.com/otn-pub/java/jdk/8u60-b27/jdk-8u60
## v8u51 => http://download.oracle.com/otn-pub/java/jdk/8u51-b16/jdk-8u51
## v8u45 => http://download.oracle.com/otn-pub/java/jdk/8u45-b14/jdk-8u45
## v8u40 => http://download.oracle.com/otn-pub/java/jdk/8u40-b25/jdk-8u40
## v8u31 => http://download.oracle.com/otn-pub/java/jdk/8u31-b13/jdk-8u31
## v8u25 => http://download.oracle.com/otn-pub/java/jdk/8u25-b17/jdk-8u25

JDK_VERSION=${BASE_URL_8: -8}
 
declare -a PLATFORMS=("-macosx-x64.dmg","-windows-x64.exe" "-linux-x64.tar.gz" "-docs-all.zip" "-windows-i586.exe" "-linux-i586.tar.gz")
## Override the declared PLATFORMS to meet a specific purpose
declare -a PLATFORMS=("-macosx-x64.dmg")

for platform in "${PLATFORMS[@]}"
do
    wget -c -O "$JDK_VERSION$platform" --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" "${BASE_URL_8}${platform}"
    ### curl -L -O -H "Cookie: oraclelicense=accept-securebackup-cookie" -k "${BASE_URL_8}${platform}"
    openssl sha256 "$JDK_VERSION$platform"
    ### compare to the the URL https://www.oracle.com/webfolder/s/digest/8u72checksum.html for the 8u72
done

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