<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Arial; font-size: 12pt; color: #000000'>The proper place for these might be in one of the Bash config files.<br><br><hr id="zwchr"><b>From: </b>"Stephen Queen" <svqueen@gmail.com><br><b>To: </b>"Mark G. Harvey" <markgharvey@yahoo.com>, "CLUE's mailing list" <clue@cluedenver.org><br><b>Sent: </b>Monday, June 24, 2013 2:37:49 PM<br><b>Subject: </b>Re: [clue] env variables<br><br><div dir="ltr"><div><div><div><div><div><div>When you add <br>#!/bin/bash<br></div>to the top of your script, you are starting a new shell. When the script completes, it exits that shell. Instead "source" you environmental variables. Create a file my_env that contains your export commands<br>
# cat my_env<br>export JAVA_HOME=/usr/java/jdk1.7.0_21<br>export PATH=$PATH:/usr/java/jdk1.7.0_21/bin<br><br></div>Then source the file <br></div>. my_env<br></div><div>(space between . and my_env, does not need to be executable).<br>
</div>Now when you<br></div># echo $JAVA_HOME<br>usr/java/jdk1.7.0_21<br># <br><br></div>Steve<br><div><br><div><div><div><div> <br></div></div></div></div></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Mon, Jun 24, 2013 at 1:54 PM, Mark G. Harvey <span dir="ltr"><<a href="mailto:markgharvey@yahoo.com" target="_blank">markgharvey@yahoo.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><div style="font-size:10pt;font-family:Courier New,courier,monaco,monospace,sans-serif"><div>CLUE experts, </div><div><br>This puzzle is likely simple for you folks, but it has me stumped. I've done considerable digging but have found mixed advice. <br>
<br>I've created a script to download from a local repo via wget an rpm to install JDK ... no problem there. <br><br>Here's the part I can't get right ... setting the variables so I can run scripts to install Tomcat ... Any attempt will bomb if it can't find /usr/java/jdk1.7.0_21/bin <br>
<br><br># set JAVA_HOME variable ... tried in vain<br>echo "setting JAVA_HOME variable variable for the session" <br>JAVA_HOME=/usr/java/jdk1.7.0_21<br># export JAVA_HOME variable ... tried in vain<br>echo "exporting JAVA_HOME variable variable for the session" <br>
export JAVA_HOME=/usr/java/jdk1.7.0_21<br>echo
"JAVA_HOME variable: $JAVA_HOME"<br><br># set PATH variable for the session ... tried in vain<br>echo "setting PATH variable for the session" <br>PATH=$PATH:/usr/java/jdk1.7.0_21/bin<br># export PATH variable for the session<br>
echo "exporting PATH variable for the subsequent sessions & processes" <br>export PATH=$PATH:/usr/java/jdk1.7.0_21/bin<br>echo "show PATH variable: $PATH"<br><br>sleep 3 # wait<br><br># create script to set JAVA_HOME & PATH variables in /etc/profile.d/00_jdk.sh script for all accounts<br>
# use echo command with single quotes to write the literal statement to the script<br>touch /etc/profile.d/00_jdk.sh<br>echo '#!/bin/bash' >> /etc/profile.d/00_jdk.sh<br>echo '# set JAVA_HOME in /etc/profile.d/00_jdk.sh script for all accounts' >> /etc/profile.d/00_jdk.sh<br>
echo 'JAVA_HOME=/usr/java/jdk1.7.0_21' >> /etc/profile.d/00_jdk.sh<br>echo '# set PATH in /etc/profile.d/00_jdk.sh
script for all accounts' >> /etc/profile.d/00_jdk.sh<br>echo 'PATH=$PATH:/usr/java/jdk1.7.0_21/bin' >> /etc/profile.d/00_jdk.sh <br><br>sleep 3 # wait<br><br>echo "review contents of /etc/profile.d/00_jdk.sh"<br>
cat /etc/profile.d/00_jdk.sh<br><br><br>... results of install ... added some blank lines for readability ...<br><br>[root@87148-mondev01 ~]# ./<a href="http://DEV_install_jdk1.7-1.0.0.sh" target="_blank">DEV_install_jdk1.7-1.0.0.sh</a> <br>
installation: Oracle/Sun jdk 1.7 64-bit<br>remount /tmp with execute privledge<br>changed to /tmp<br>Pulling package from Artifactory Repo Management Server<br>--2013-06-24 13:24:38-- <a href="about:blank" target="_blank">https://<RepoHost>/artifactory/simple/ext-release-local/oracle/jdk/7u21-linux/jdk-7u21-linux-x64.rpm</a><br>
Resolving <RepoHost>... 10.33.44.10<br>Connecting to <RepoHost>|10.33.44.10|:443...
connected.<br><br>HTTP request sent, awaiting response... 200 OK<br><br>Length: 85388149 (81M) [application/x-rpm]<br>Saving to: “jdk-7u21-linux-x64.rpm”<br><br>100%[=======================================================================================================================================>] 85,388,149 52.7M/s in 1.5s <br>
<br>2013-06-24 13:24:40 (52.7 MB/s) - “jdk-7u21-linux-x64.rpm” saved [85388149/85388149]<br><br>jdk downloaded<br>check /tmp/ contents for jdk<br>-rw-r--r--. 1 root root 85388149 Jun 6 16:46 jdk-7u21-linux-x64.rpm<br>install jdk rpm<br>
Preparing... ########################################### [100%]<br>package jdk-2000:1.7.0_21-fcs.x86_64 is already installed ........ due to subsequent running of this script<br>install jdk complete<br>
<br>setting JAVA_HOME variable variable for the session<br>exporting
JAVA_HOME variable variable for the session<br><br>... when tested in the script, the correct answer shows up ... <br><br>JAVA_HOME variable: /usr/java/jdk1.7.0_21 <br><br>setting PATH variable for the session<br>exporting PATH variable for the subsequent sessions & processes<br>
<br>... when tested in the script, the correct answer shows up ... <br><br><br>show PATH variable: /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin:/usr/java/jdk1.7.0_21/bin:/usr/java/jdk1.7.0_21/bin<br>
<br>review contents of /etc/profile.d/00_jdk.sh<br>#!/bin/bash<br># set JAVA_HOME in /etc/profile.d/00_jdk.sh script for all accounts<br>JAVA_HOME=/usr/java/jdk1.7.0_21<br># set PATH in /etc/profile.d/00_jdk.sh script for all accounts<br>
PATH=$PATH:/usr/java/jdk1.7.0_21/bin<br>remount /tmp removing execute privledge<br>finished<br><br><br>... after script runs, when tested from CLI, variables not not correct
... <br><br>[root@87148-mondev01 ~]# echo $JAVA_HOME<br><br>[root@87148-mondev01 ~]# echo $PATH<br>/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin<br><br><br><br>[root@87148-mondev01 ~]# exit<br>logout<br>
<br>[vwadmin@87148-mondev01 ~]$ su -<br>Password: <br><br><br>... now the variable additions show up ... they come from the /etc/profile.d/00_jdk.sh script created as part of the JDK download & install ... <br><br>[root@87148-mondev01 ~]# echo $PATH<br>
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/java/jdk1.7.0_21/bin:/root/bin<br><br>[root@87148-mondev01 ~]# echo $JAVA_HOME<br>/usr/java/jdk1.7.0_21<br><br><br><br>... How can I get the variables to be available for the current root session & usable for subsequent installations? Trying to avoid the logout / login ... <br>
<br><br><br>Thanks for your help. <br></div></div></div><br>_______________________________________________<br>
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