Search Results

Hi,

In Unix, the main function can usually return any int value as its status, which is captured by the OS. You can always see the return value of any program by simply doing echo $?

For...

Hello,

Can you provide the code that you tried but it failed. ?

Thanks,
Gaurav.

Hi,

you can use shared_memory IPC to share the sockets(any data) between the two processes via a unique key. Otherwise you can instead create threads when you serve a new request. Then you save...

cat + perl + sed = WOW !!!

---------- Post updated at 02:06 PM ---------- Previous update was at 02:00 PM ----------




perl -wln -e 'print if (!/^\$/ and /^MG/)' FILE.txt


With perl...

Hello Madhu,

From the error, its obvious that you need the libnsl.a because code links against some routines from that lib. What I would suggest is that find that library (using find) and...

Hi,

From the man page -
SIGINT is sent when the user on the process' controlling (http://en.wikipedia.org/w/index.php?title=Controlling_terminal&action=edit&redlink=1) terminal...

Hello dragon,

Do you have access to the source ? If yes, can you post if over here (only the relevant part) ..

Thanks,
Gaurav.

Hi,

'cd' command is not part of the kernel. though it is the part of the shell. Its a shell built-in. The other commands are external to the shell like 'file', 'find' . If a command is shell...

Hi ,

You can use sizeof() operator to find the size of any data structure by providing the base address of the structure. the implementation of memory allocation are different on different...

Hi,

run it on gdb to print the value(address) of v where you allocate it and where you free it to see if its getting corrupted by some other thread. So far what you have pasted looks okay to me....

Hi royalibrahim,

The declaration 'char *a = "hello"' is actually allocated in the .rodata (read-only data) and not in the .text section (in an ELF binary). I wrote a small code to verify
this....

Hi,


printf("%s",&3[p]);


3[p] is a character whereas %s needs the address of a character buffer.

Thanks,
Gaurav.

Hi Peter,

A preprocessor directive such as you see "#define" or "#include" is translated by the preprocessor (cpp) before the compiler gets its hands dirty with the code. For example if you...

Strings are NOT pointers. Pointer airthmetic (buf = buf + 5) can only be applied if buf is a pointer (char *buf) and not if it is a string (char buf [20] ) . If you want to do pointer airthmetic on a...

If you want the child process to execute first, the parent process should wait() for the child before changing the permission like this ->



switch(pid = fork())
{
case -1: perror("fork...

should be if (count > len) Thanks,
Gaurav.

---------- Post updated at 03:08 PM ---------- Previous update was at 02:57 PM ----------
Another way ,



void * shiftbyn( char *str, size_t...

you are comparing a character(typically an integer) with a string (char *) . This is illegal, you should better try



Note the difference b/w "r" and 'r'.

There are other problems yet with...

By rule , the declaration of the function should be present in that translation unit(file) where the function is called.
So take care to include the declaration of the function "go" in t.c or a.h...

you are free'ing buf (allocated by kmalloc) conditionally. It can cause memory leak in kernel space.

Thanks,
Gaurav.

would be nice if you paste the result of the configure script. Also check the exit status and try to locate the "missing header" using a simple find if you can find it.

Hi ctote,

if a ptr is NOT NULL, then it is true, (for ex. containing a junk values, aka bad pointer). if you did not define your ptr to NULL when you declare/free them, you should be careful...

Hi,

Why would you want to delve into depths if you have to remove all the dirs. ?

you can choose "-maxdepth" instead of "-mindepth"
Or
you can choose to do rm -rf instead.

If I got...

Hello ,

use "egrep" instead of "grep" . You are using ERE (extended regular expressions) which egrep supports .

Regards,
Gaurav.

Hello,



gaurav@localhost:~/unix$ cat test2.txt
=====================
NEXT HOST
=====================
AEADBAS001
access-list 1 permit xxxxxxxxxxxxxx
ip access-list extended...

Try this


awk '$(NF-1)=="1"' file


Regards,
Gaurav.