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Shell Programming and Scripting
Need help with (beginner?) script
Post 302320237 by Neo on Wednesday 27th of May 2009 11:43:30 AM
05-27-2009
Administrator
On Linux, connecting accounting is managed through the following utilities:
So, you can easily get the source code and finish your project in a few days.
Frankly speaking, I don't understand why a student posts such a question here, because you can easily get enough answers and code to move this project forward very fast with a simple Google search.
I am closing this thread after my post. You have more than enough info to move your project forward in this post.
Learn to use Google, that is my advice! All you have done, by posting this question, is to get someone (me) to Google for you. You should be ashamed of yourself. What kind of students can't do simple key word searches using Google??
- dump-utmp : Converts raw data from /var/run/utmp or /var/log/wtmp into readable ASCII text. Hint: Good for scripting.
- ac : Reads /var/log/utmp and outputs user connect time in hours.
- last :Shows a list of last logged-in hours. More detail than ac.
- who : Shows currently logged-in users. Reads from /var/log/utmp file.
- utmp : Logs active user sessions.
- wtmp : Records login and logout activity. Also records system reboots and run-level changes.
So, you can easily get the source code and finish your project in a few days.
Frankly speaking, I don't understand why a student posts such a question here, because you can easily get enough answers and code to move this project forward very fast with a simple Google search.
I am closing this thread after my post. You have more than enough info to move your project forward in this post.
Learn to use Google, that is my advice! All you have done, by posting this question, is to get someone (me) to Google for you. You should be ashamed of yourself. What kind of students can't do simple key word searches using Google??
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LEARN ABOUT SUSE
logout
LOGIN(3) Linux Programmer's Manual LOGIN(3) NAME
login, logout - write utmp and wtmp entries SYNOPSIS
#include <utmp.h> void login(const struct utmp *ut); int logout(const char *ut_line); Link with -lutil. DESCRIPTION
The utmp file records who is currently using the system. The wtmp file records all logins and logouts. See utmp(5). The function login() takes the supplied struct utmp, ut, and writes it to both the utmp and the wtmp file. The function logout() clears the entry in the utmp file again. GNU Details More precisely, login() takes the argument ut struct, fills the field ut->ut_type (if there is such a field) with the value USER_PROCESS, and fills the field ut->ut_pid (if there is such a field) with the process ID of the calling process. Then it tries to fill the field ut->ut_line. It takes the first of stdin, stdout, stderr that is a tty, and stores the corresponding pathname minus a possible leading /dev/ into this field, and then writes the struct to the utmp file. On the other hand, if no tty name was found, this field is filled with "???" and the struct is not written to the utmp file. After this, the struct is written to the wtmp file. The logout() function searches the utmp file for an entry matching the ut_line argument. If a record is found, it is updated by zeroing out the ut_name and ut_host fields, updating the ut_tv timestamp field and setting ut_type (if there is such a field) to DEAD_PROCESS. RETURN VALUE
The logout() function returns 1 if the entry was successfully written to the database, or 0 if an error occurred. FILES
/var/run/utmp user accounting database, configured through _PATH_UTMP in <paths.h> /var/log/wtmp user accounting log file, configured through _PATH_WTMP in <paths.h> CONFORMING TO
Not in POSIX.1-2001. Present on the BSDs. NOTES
Note that the member ut_user of struct utmp is called ut_name in BSD. Therefore, ut_name is defined as an alias for ut_user in <utmp.h>. SEE ALSO
getutent(3), utmp(5) COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. GNU
2004-05-06 LOGIN(3)