09-05-2012
Quote:
Originally Posted by
Don Cragun
Given what is in the description of shc in the link you posted, the purpose of shc is to hide cleartext passwords written into shell scripts. But, the keys for unencrypting the script are built into the script, so anybody that has access to the website you posted that can also read the script can decode it with a little bit of C programming and see whatever is in your script. If you think that using shc will keep someone from being able to read your script, that is only true if you don't have any experienced users on your system or make the files unreadable by unauthorized users. (And if the files are unreadable by unauthorized users, you don't need to use shc.) I don't see that shc does anything for you but make it harder to maintain your script. Furthermore, you should NEVER UNDER ANY CIRCUMStANCES put a cleartext password in a shell script nor put a cleartext password as a command line argument when invoking a process. (Doing this makes it possible for any user to see the cleartext password for a period of time that lasts somewhere between a few nanoseconds and the time until the system is rebooted.)
Ok then I will skip encrypting part for now...
Made the changes and gonna test now...
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ln(1) General Commands Manual ln(1)
Name
ln - link to a file
Syntax
ln [ -f ] [ -i ] [ -s ] name1 [name2]
ln [ -f ] [ -i ] [ -s ] name ... directory
Description
A link is a directory entry referring to a file. A file, together with its size and all its protection information may have several links
to it. There are two kinds of links: hard links and symbolic links.
By default makes hard links. A hard link to a file is indistinguishable from the original directory entry. Any changes to a file are
effective independent of the name used to reference the file. Hard links may not span file systems and may not refer to directories.
Given one or two arguments, creates a link to an existing file name1. If name2 is given, the link has that name. The name2 may also be a
directory in which to place the link. Otherwise it is placed in the current directory. If only the directory is specified, the link is
made to the last component of name1.
Given more than two arguments, makes links to all the named files in the named directory. The links made have the same name as the files
being linked to.
Options
-f Forces existing destination pathnames to be removed before linking without prompting for confirmation.
-i Write a prompt to standard output requesting information for each link that would overwrite an existing file. If the response from
standard input is affirmative, and if permissions allow, the link is done. The -i option has this effect even if the standard input is
not a terminal.
-s Creates a symbolic link.
A symbolic link contains the name of the file to which it is linked. The referenced file is used when an operation is performed on
the link. A on a symbolic link returns the linked-to file. An must be done to obtain information about the link. The call may be
used to read the contents of a symbolic link. Symbolic links may span file systems and may refer to directories.
See Also
cp(1), mv(1), rm(1), link(2), readlink(2), stat(2), symlink(2)
ln(1)