Reporting with Hadoop - Big Data Made Easy: A Working Guide to the Complete Hadoop Toolset - page 336

The following commands display the unpacked directory via a Linux ls command. The Linux cd command then
moves into the unpacked Talend software directory TalendTools-5.5.1-cdrom. After that, the Linux ls command again
provides a long list of the contents of the unpacked software:
[hadoop@hc1nn Downloads]$ ls -ld TalendTools-5.5.1-cdrom
drwxr-xr-x 2 root root 4096 Jun 18 11:25 TalendTools-5.5.1-cdrom
[root@hc1nn Downloads]# cd TalendTools-5.5.1-cdrom
[hadoop@hc1nn TalendTools-5.5.1-cdrom]$ ls -l
total 2081688
-rwxr-xr-x 1 root root 2095344252 Jun 18 11:25 dist
-rwxr-xr-x 1 root root 6171835 Jun 18 11:25 Talend-Tools-Installer-r118616-V5.5.1-linux64-
installer.run
-rwxr-xr-x 1 root root 6003334 Jun 18 11:25 Talend-Tools-Installer-r118616-V5.5.1-linux-
installer.run
-rw-r--r-- 1 root root 18288640 Jun 18 11:25 Talend-Tools-Installer-r118616-V5.5.1-osx-
installer.app.tar
-rwxr-xr-x 1 root root 5829599 Jun 18 11:24 Talend-Tools-Installer-r118616-V5.5.1-windows-
installer.exe
The two files with “linux” in their names are used to install Talend on Linux-based hosts. The other files are used
to install Talend on the Windows and Mac OSX operating systems. The file named “dist” is the largest file in the release
and contains the actual distributed software for the installation. Given that I am installing onto a 32-bit Linux host,
I use the Linux-based file that does not have 64 in its name.
Before I install the Talend software, however, I need to install the Oracle Sun version of the JavaSDK. The Talend
installation will fail if this JavaSDK isn't available. Because I generally use the Java OpenJDK, I install this Java release
under /usr/local. I download the latest available JavaJDK from the URL http://www.oracle.com/technetwork/java/
javase/downloads/jdk8-downloads-2133151.html to Centos Linux host hc1nn as the Linux hadoop user.
The following commands show the Downloads directory within the Linux hadoop account's home directory
via the Linux pwd command. They also show a long file listing of the downloaded JavaJDK file using the Linux ls
command:
[hadoop@hc1nn Downloads]$ pwd
/home/hadoop/Downloads
[hadoop@hc1nn Downloads]$ ls -l jdk-8u25-linux*
-rw-rw-r-- 1 hadoop hadoop 162406890 Nov 3 19:23 jdk-8u25-linux-i586.tar.gz
This is a compressed tar archive file (it has a file type of .tar.gz), so I uncompress it using the Linux gunzip
command. This produces a tar archive with a file type of .tar. I then use the Linux tar command to unpack it, using the
option xvf , where x means extract, v means verbose, and f allows the tar file name to be specified. Then, a long file list
shows that the unpacked software resides in a directory called jdk1.8.0_25:
[hadoop@hc1nn Downloads]$ gunzip jdk-8u25-linux-i586.tar.gz
[hadoop@hc1nn Downloads]$ tar xvf jdk-8u25-linux-i586.tar
[hadoop@hc1nn Downloads]$ ls -ld jdk1.8.0_25
drwxr-xr-x 8 hadoop hadoop 4096 Sep 18 11:33 jdk1.8.0_25