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I use the following script to change Open Directory (Apple's LDAP) passwords.

I don't like leaving the actual password within the script -- is there any way to hide or masquerade this so the script can be used by other users, but in a way they can't see the password?

PATH=/bin:/usr/bin:/sbin:/usr/sbin export PATH
echo Enter username you\'d like to change password for:
echo Enter New Password for "$USERNAME"
dscl -u diradmin -P 'secretpasswordhere' /LDAPv3/ passwd /Users/$USERNAME $PASSWORD
echo Password successfully changed for $USERNAME to $PASSWORD
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You could have the script run as Set-GID and then get the password information from a file protected under this group. The group of course should have limited access and membership. This is a very simple answer.

Another idea is to have the user enter a decrypt code for the scrambled password contained in the scripting. Thus only authorized users (those with the decrypt code) could run the script.

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have a look at shc

 The whole logic behind the shc is to convert the 
   shell script to C program (and of course compile that
   to generate the executable)
  • is the original unencrypted shell script
  • is the encrypted shell script in binary format
  • is the C source code of the file. This C source code is compiled to create the above encrypted file.
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SHC looks like an elegant solution, but alas it doesn't appear to compile properly in OSX...rats – Dan Oct 15 '12 at 21:56
Maybe it uses some linux-specific system calls. But in any case you got the idea. It should not be very difficult to create your own version. – Nikolaidis Fotis Oct 15 '12 at 22:39

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