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Shell Programming and Scripting
Read user input, Encrypt the data and write to file
Post 302714175 by saichand1985 on Friday 12th of October 2012 12:39:32 AM
10-12-2012
Read user input, Encrypt the data and write to file
Hi,
can some one help me how to encrypt and decrypt a file.
AIM: reade user input, encrypt it and save it to file.
while decryption read the encrypted file decrypt it and save the output in some variable.
Example: consider we have Credentials.txt file with content username: password
when user run a script, it should ask them to enter username and password in format of "username: password".
when user enters them, it should get encrypted and save to credentials.txt file.
while decryption, read the credentials.txt file decrypt it, then split the content before and after the delimiter : and store them into two different variable like username should get stored in $usr and password should store in $passwd. i will use this variable in further script
im trying from very long time to hw to achive this. i will be very thank full if some one help me....
can some one help me how to encrypt and decrypt a file.
AIM: reade user input, encrypt it and save it to file.
while decryption read the encrypted file decrypt it and save the output in some variable.
Example: consider we have Credentials.txt file with content username: password
when user run a script, it should ask them to enter username and password in format of "username: password".
when user enters them, it should get encrypted and save to credentials.txt file.
while decryption, read the credentials.txt file decrypt it, then split the content before and after the delimiter : and store them into two different variable like username should get stored in $usr and password should store in $passwd. i will use this variable in further script
im trying from very long time to hw to achive this. i will be very thank full if some one help me....
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LEARN ABOUT ULTRIX
shexp
shexp(1) General Commands Manual shexp(1) Name shexp - display password expiration information for a user Syntax shexp [-q] [username] Description The command is used to display a user's password expiration information. The specified username, or logname if no username is supplied, is converted to a UID by searching through the passwd file. The UID is then used to look up the user's entry in the Auth Data Base. The password expiration information is then printed out in format. % shexp Expires Tue Dec 6 10:49:18 EST 1988 If the password has already expired the word Expires will be replaced with the word Expired. If password expiration is disabled for the particular user in question the output of will be Never expires. Options -q Instead of displaying the expiration date and time in format, outputs it as three decimal numbers: the minimum password lifetime, the maximum password lifetime, and the password modification time. All three numbers are displayed as they are found in the database. Restrictions Only the super-user may obtain information about users with UIDs other than the real UID of the invoking process. Diagnostics User not found in passwd data base. There is no entry in for the specified username. Cannot stat auth file. The database is missing (security features may not be enabled). Insufficient privilege. An insufficiently privileged user is asking for information about a username with a UID different then their current real-UID. An exit value of 0 indicates a successful operation, any other exit status indicates an error. Files See Also passwd(1), getauthuid(3), auth(5) Security Guide for Users shexp(1)