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Full Discussion: Security of Environment Variables
Special Forums Cybersecurity Security of Environment Variables Post 302972907 by gandolf989 on Wednesday 11th of May 2016 01:24:22 PM
Old 05-11-2016
The Oracle Import process can be a good example of this. If you put the password
in the command, then you can see it when you use the "ps -ef | grep impdp".

Code:
impdp system/change_on_install ...

But if you use the echo command and pipe to the impdp command, then you won't
see the password when you do "ps -ef | grep impdp"

Code:
echo "system/change_on_install" | impdp  ...

Another option would be to put a delimited text file under the ~/.ssh directory.
You can then grep for the line that you want and use the cut command to grab
the password.

~/.ssh/pw
Code:
user:this_pwd
user1:this_pwd
user2:this_pwd
user3:this_pwd

You script that needs a password would have the following. Including the carrot
and colon will make sure that the line starts with the username and does not
accidentally pick up more than one line if you have similar usernames. You do
need to make sure that each username is unique in the file.
Code:
THIS_PWD=`grep "^user1:" | cut -d":" -f2`

This User Gave Thanks to gandolf989 For This Post:
denden
 

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LEARN ABOUT X11R4

zgrep

ZGREP(1)                                                      General Commands Manual                                                     ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep  options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

                                                                                                                                          ZGREP(1)
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