10-22-2005
Thanks for the explanation.
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi all,
My boss wants me to find out how often e-m users are accessing their account:confused:. The mail server keeps log of all logins. I want to use grep the 'usernames', but it should come out the moment it first encounters the username in the log. Can I do that? I want to avoid 10+ greps... (2 Replies)
Discussion started by: nitin
2 Replies
2. UNIX for Dummies Questions & Answers
I have seen this used several times but not really sure of what it actually does. I am confused with the second grep as the argument to the first.
some commands | grep -v grep | some other commands
Can anyone provide an explanation?
Thanks, (5 Replies)
Discussion started by: google
5 Replies
3. Linux Benchmarks
I created two computers with identical hardware, and run the benchmark programs in both starting at the same exact time.
What makes no sense is that the computer that has the lower average index (121) finished the race a good 30 minutes ahead of the computer wich showed the higher avg index... (0 Replies)
Discussion started by: philip_38
0 Replies
4. Shell Programming and Scripting
Hi, On the log Netscape log, I need to grep for 500 error. I am doing that but I also get 1500 in that same log.
cat access |grep "500"
Results:
"GET /css/RBR.css HTTP/1.1" 200 15000 304 - - - 399 639 523 164 0
This not what I need... Please advice. (4 Replies)
Discussion started by: samnyc
4 Replies
5. Shell Programming and Scripting
Hi, I've been running code which very frequently calls books.csv. e.g:
grep -i horror books.csv > tempExcept, I'm trying to move away from using temporary files or frequently calling books.csv to improve efficiency. So I tried something like
bookfile=$(cat books.csv)
grep -i horror... (4 Replies)
Discussion started by: Quan
4 Replies
6. Shell Programming and Scripting
Hi,
I have written a small shellscript
Imagine dbalt.txt already existed...
"
....
touch report.txt
lynx -dump "http://site.com/index.htm" > site1.txt
lynx -dump "http://site.com/index2.htm" > site2.txt
grep -E 'Nummer: |EUR' site1.txt > preis1.txt
grep -E 'Nummer: |EUR' site2.txt >... (2 Replies)
Discussion started by: Blackbox
2 Replies
7. Shell Programming and Scripting
I'm trying to write a simple script to identify every user who tried to “sudo” on the system. I have the first portion down to grep the log file
grep “sudo” /var/log/secure.
What I want to do is have the script identify the person just one time not every instance the user tried... (4 Replies)
Discussion started by: bouncer
4 Replies
8. Programming
Okay so I'm making a simple text based game that branches into different scenarios. By branching I mean branching off into whole different files with that part of the game in it. I got tired of working on scenario 1 so I'm working on scenario 2. As I get started and try to test it, I get an error... (1 Reply)
Discussion started by: lemonoid
1 Replies
9. Shell Programming and Scripting
Okay so I'm making a simple text based game that branches into different scenarios. By branching I mean branching off into whole different files with that part of the game in it. I got tired of working on scenario 1 so I'm working on scenario 2. As I get started and try to test it, I get an... (3 Replies)
Discussion started by: lemonoid
3 Replies
LEARN ABOUT DEBIAN
explain_exit
explain_exit(3) Library Functions Manual explain_exit(3)
NAME
explain_exit - print an explanation of exit status before exiting
SYNOPSIS
#include <libexplain/libexplain.h>
void explain_exit_on_exit(void);
void explain_exit_on_error(void);
void explain_exit_cancel(void);
DESCRIPTION
The explain_exit_on_exit function may be used to have the calling program print an explanation of its exit status (the value passed to
exit(3) or the return value from main) immediately before it terminates.
The explain_exit_on_error function may be used to have the calling program print an explanation of its exit status immediately before it
terminates, if that exit status is not EXIT_SUCCESS.
The explain_exit_cancel function may be used to cancel the effect of the explain_exit_on_exit or explain_exit_on_error function.
These functions may be called multiple times, and in any order. The last called has precedence. The explanation will never be printed
more than once.
Call Exit As Normal
In order to have the explanation printed, simply call exit(3) as normal, or return from main as normal. Do not call any of these functions
in order to exit your program, they are called before you exit your program.
Caveat
This functionality is only available on systems with the on_exit(3) system call. Unfortunately, the atexit(3) system call is not suffi-
ciently capable, as it does not pass the exit status to the registered function.
SEE ALSO
exit(3) cause normal process termination
atexit(3)
register a function to be called at normal process termination
on_exit(3)
register a function to be called at normal process termination
COPYRIGHT
libexplain version 0.52
Copyright (C) 2009 Peter Miller
AUTHOR
Written by Peter Miller <pmiller@opensource.org.au>
explain_exit(3)