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Full Discussion: How to read from a file line by line and do stuff
Top Forums Shell Programming and Scripting How to read from a file line by line and do stuff Post 66873 by tmarikle on Thursday 17th of March 2005 01:16:47 PM
Old 03-17-2005
Quote:
Originally Posted by spaceship
I want to read from a file and then do some stuff based on the text read from each line. Basically it is a list of usernames and I need to read each user, check it exist in passwd and extract their home directory and then copy a few files to that users home directory. Then move onto the next user in the file. Is this possible ??
Here's a quick and sloppy way of doing it in KSH.
Code:
{
typeset IFS='
'
while read USER_NAME
do
   USER_DIR=$(grep $USER_NAME /etc/passwd | awk -F: '{print $6}')                                                                                                 
   print $USER_DIR                                                                                                                                                 
done < /etc/passwd
}

This User Gave Thanks to tmarikle For This Post:
ektubbe
 

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LEARN ABOUT SUNOS

userdel

userdel(1M)						  System Administration Commands					       userdel(1M)

NAME

       userdel - delete a user's login from the system

SYNOPSIS

       userdel [-r] login

DESCRIPTION

       The  userdel  utility  deletes a user account from the system and makes the appropriate account-related changes to the system file and file
       system.

OPTIONS

       The following options are supported:

       -r	Remove the user's home directory from the system. This directory must exist. The files and directories under  the  home  directory
		will no longer be accessible following successful execution of the command.

OPERANDS

       The following operands are supported:

       login	An existing login name to be deleted.

EXIT STATUS

       The following exit values are returned:

       0	Successful completion.

       2	Invalid command syntax. A usage message for the userdel command is displayed.

       6	The account to be removed does not exist.

       8	The account to be removed is in use.

       10	Cannot update the /etc/group or /etc/user_attr file but the login is removed from the /etc/passwd file.

       12	Cannot remove or otherwise modify the home directory.

FILES

       /etc/passwd	       system password file

       /etc/shadow	       system file contain users' encrypted passwords and related information

       /etc/group	       system file containing group definitions

       /etc/user_attr	       system file containing additional user attributes

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       auths(1),  passwd(1),  profiles(1),  roles(1),  users(1B),  groupadd(1M), groupdel(1M), groupmod(1M), logins(1M), roleadd(1M), rolemod(1M),
       useradd(1M), userdel(1M), usermod(1M), passwd(4), prof_attr(4), user_attr(4), attributes(5)

NOTES

       The userdel utility only deletes an account definition that is in the local /etc/group, /etc/passwd, /etc/shadow, and /etc/user_attr  file.
       file. If a network name service such as NIS or NIS+ is being used to supplement the local /etc/passwd file with additional entries, userdel
       cannot change information supplied by the network name service.

SunOS 5.10							    8 Sep 1999							       userdel(1M)
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