linux os improvement Post: 302488268

6 More Discussions You Might Find Interesting

1. Programming

File - reading - Performance improvement

Hi All I am reading a huge file of size 2GB atleast. I am reading each line and cutting certain columns and writing it to another file. Here is the logic. int main() { string u_line; string Char_List; string u_file; int line_pos; string temp_form_u_file; ...

2. Shell Programming and Scripting

Script ready but might need some improvement.

Hi All, I have written a script which does some editing in the files, based on user input.This might not be the most elegant way of doing it and there would be many improvements needed. Please go through it and let me know how it could be improved. Suggestions are welcome!! Thanks!...

3. Shell Programming and Scripting

Any improvement possible in this script

Hi! Thank you for the help yesterday This is the finished product There is one more thing I would like to do to it but I’m not to certain On how to proceed I would like to log all output to a log in order to Be able to roll back This script is meant to be used in repairing a...

4. Shell Programming and Scripting

I need the improvement for my script

Hi All, Here is my script #! /bin/sh var1=some email id var2=some email id grep -i "FAILED FILE FORMAT VALIDATION" /opt >tmp2 diff tmp1 tmp2 | grep ">" >tmp3 if then cat tmp3 | mailx -s " Error Monitoring" $var2 else echo "Pattern NOt Found" | mailx -s " Error Monitoring" $var1...

5. UNIX for Dummies Questions & Answers

Improvement in shell script

Hi This is my Following code: #!/bin/sh echo "TOTAL_NO_OF_MAILS" read TOTAL_NO_OF_MAILS echo "TOTAL_NO_OF_TICKETS " read TOTAL_NO_OF_TICKETS echo "TICKETS_IN_QUEUE" read TICKETS_IN_QUEUE rm -rf `pwd`/Focus echo "Hi Team\nSTATS IN CLRS MAIL BOX\n\n==============================" >> Focus...

6. Shell Programming and Scripting

Performance improvement in grep

Below script is used to search numeric data from around 400 files in a folder. I have 300 such folders. Need help in performance improvement in the script. Below Script searches 20 such folders ( 300 files in each folder) simultaneously. This increases cpu utilization upto 90% What changes...

LEARN ABOUT OSX

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)