few new bie questions related to gdb , telnet Post: 302071505

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Top Forums UNIX for Dummies Questions & Answers few new bie questions related to gdb , telnet Post 302071505 by gauri on Friday 21st of April 2006 07:32:18 AM

04-21-2006

Registered User

few new bie questions related to gdb , telnet

Hi All,

1. how to what is the current line we are executing. List command will display the 10 lines by default.
2. how to put a pointer to the current excuting line when executing the list.
2. if i have set one break point and i want to set 2nd break point do i need to delete the first break point and then run command once again or i need to do continue then again it will hit the 2nd break point?
3. in vi editor i wasnted to replace one string by follwoing:
(replcae /abc with /xyz/lmn
1,$s/^\/abc/\/xyz\/lmn/g

but i am unable to type \ after ^..

4. i am using debian os and want to enable telent by uncommenting telnet in .etc/inet.d file but i need to reboot the system to make it effective. Is there any command i can achive with out reboot?

5. i am unabel to do gdb on the following program:
---------------
#include<stdio.h>
void fun1();
void fun2();
main()
{
printf ("hello");
fun1();
fun2();
void fun1()
{
printf("helo1");
}
void fun2()
{
printf("helo2");
}
}

---------

i compile it by using the following command:

gcc -g a.c -o a.o

then i am getting the following error:

balbld01@/home/gauria{29} gdb a.o
GNU gdb 5.1.0.1
Copyright 2001 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i686-pc-linux-gnu"...Dwarf Error: Cannot handle DW_FORM_strp in DWARF reader.

(gdb) b fun1
No symbol table is loaded. Use the "file" command.
(gdb)

Could nay one help me in all of my queries.

Thanks in advance.

Regards
Gauri

gauri

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LEARN ABOUT HPUX

cfingerd.text

CFINGERD.TEXT(5)					    Configurable Finger Daemon						  CFINGERD.TEXT(5)

NAME

       cfingerd.text - cfingerd text rules

EXPLANATION

       cfingerd  offers different commands that can be placed in text files to display corresponding information.  Each command used with cfingerd
       in text files begins with a dollar-sign (or a "$").  This usually indicates to cfingerd that when it's displaying a  file,  it  issues  the
       command given directly after that character and inserts its output.

       If you want to display a raw "$" sign, simply put two "$" signs together, or "$$".

       Text commands are only parsed if ALLOW_LINE_PARSING is enabled in /etc/cfingerd/cfingerd.conf(5).  If it is disabled the text files will be
       sent as is, complete with any single or double dollar signs they may contain.

TEXT COMMANDS

       The following is a list of text commands and what they do.  They are checked case insensitively.

       $CENTER will display the entire contents of the line.  This command must start at the beginning of the line.  This is a	very  common  com-
       mand.

       $DATE displays the current system date in the format of MM/DD/YY.

       $TIME displays the current system time in the format HH:MM A/PM (timezone).

       $IDENT displays the identity of the current person fingering your system.

       $COMPILE_DATETIME displays the date and time of which the current issue of cfingerd was compiled on your system.

       $VERSION displays the current version of cfingerd.

       $EXEC  executes	the rest of the line as a system command and send the output to the fingering user.  Pipes, parameters etc. are available.
       The $EXEC command must be on a line by itself in order to function properly.  The command is executed as nobody.nogroup if used in a system
       file.  If used in a user file (e.g.  .plan) the command is executed as that particular user.  cfingerd will fork() before executing the new
       command and will drop all priviledges so this is safe.

       This feature is only available if ALLOW_EXECUTION is enabled in cfingerd.conf.  The program may prodeuce a maximum of 10MB of output.

CONTACTING

       If you like the software, and you want to learn more about the software, or want to see a feature added to it that isn't already here, then
       please write to cfingerd@infodrom.north.de.  The project's webpage is at http://www.infodrom.north.de/cfingerd/ .

SEE ALSO

       cfingerd(8), cfingerd.conf(5), finger(1), userlist(1), any of the included docs with the standard cfingerd distribution.

1.4.2								    7 Aug 1999							  CFINGERD.TEXT(5)