JDK8 command line download script; For JDK10, please check: https://gist.github.com/P7h/9741922

jdk8_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 / curl.
### You can download all the binaries one-shot by just providing one 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.

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## Latest JDK8 version is JDK8u171 released on 17th Jul, 2018.
BASE_URL_8=http://download.oracle.com/otn-pub/java/jdk/8u181-b13/96a7b8442fe848ef90c96a2fad6ed6d1/jdk-8u181

JDK_VERSION=`echo $BASE_URL_8 | rev | cut -d "/" -f1 | rev`

declare -a PLATFORMS=("-linux-arm32-vfp-hflt.tar.gz" "-linux-arm64-vfp-hflt.tar.gz" "-linux-i586.rpm" "-linux-i586.tar.gz" "-linux-x64.rpm" "-linux-x64.tar.gz" "-macosx-x64.dmg" "-solaris-sparcv9.tar.Z" "-solaris-sparcv9.tar.gz" "-solaris-x64.tar.Z" "-solaris-x64.tar.gz" "-windows-i586.exe" "-windows-x64.exe" "-docs-all.zip")
# declare -a PLATFORMS=("-linux-x64.tar.gz" "-windows-x64.exe" "-docs-all.zip")

for platform in "${PLATFORMS[@]}"
do
    ### wget -c --header "Cookie: oraclelicense=accept-securebackup-cookie" "${BASE_URL_8}${platform}"
    curl -C - -LR#OH "Cookie: oraclelicense=accept-securebackup-cookie" "${BASE_URL_8}${platform}"
done

previous_JDK_8_Versions.sh

##### Earlier JDK8 versions:
## 8u171 => http://download.oracle.com/otn-pub/java/jdk/8u171-b11/512cd62ec5174c3487ac17c61aaa89e8/jdk-8u171
## 8u161 => http://download.oracle.com/otn-pub/java/jdk/8u161-b12/2f38c3b165be4555a1fa6e98c45e0808/jdk-8u161
## 8u151 => http://download.oracle.com/otn-pub/java/jdk/8u151-b12/e758a0de34e24606bca991d704f6dcbf/jdk-8u151
## 8u144 => http://download.oracle.com/otn-pub/java/jdk/8u144-b01/090f390dda5b47b9b721c7dfaa008135/jdk-8u144
## 8u141 => http://download.oracle.com/otn-pub/java/jdk/8u141-b15/336fa29ff2bb4ef291e347e091f7f4a7/jdk-8u141
## 8u131 => http://download.oracle.com/otn-pub/java/jdk/8u131-b11/d54c1d3a095b4ff2b6607d096fa80163/jdk-8u131
## 8u121 => http://download.oracle.com/otn-pub/java/jdk/8u121-b13/e9e7ea248e2c4826b92b3f075a80e441/jdk-8u121
## 8u111 => http://download.oracle.com/otn-pub/java/jdk/8u111-b14/jdk-8u111
## 8u101 => http://download.oracle.com/otn-pub/java/jdk/8u101-b13/jdk-8u101
## v8u91 => http://download.oracle.com/otn-pub/java/jdk/8u91-b14/jdk-8u91
## v8u77 => http://download.oracle.com/otn-pub/java/jdk/8u77-b03/jdk-8u77
## v8u73 => http://download.oracle.com/otn-pub/java/jdk/8u73-b02/jdk-8u73
## 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

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##### Previous iteration commands [just for reference]:
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}"

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Link has changed for jdk 1.8-181:

http://download.oracle.com/otn-pub/java/jdk/8u181-b13/96a7b8442fe848ef90c96a2fad6ed6d1/jdk-8u181