Doubt on using AWK Post: 302716293

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awk doubt

I'm having a file with 5 fields. I want to sort that file according to one field no 3. How shall I do using awk programming. Any input appreciatable. regards, vadivel.

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Hi all, column1 -------- 33 44 55 66 please provide the script using awk command to dispaly output 55. Help apperciated.. thanks, Nirmal

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hi how to get the values in two columns (may be 2nd and 5th column) of a file line by line. either i want to get the two fields into different variables and use a for loop to get these values line by line.

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doubt about awk

i have a file like this: awk.lst smith : sales : 1200 : 2 jones:it:25000 : 2 roger : it : 1500 : 2 ravi | acct | 15000 i have 3 doubts 1) when i say awk -F ":" '$2 ~ /'it'/ {print $0}' awk.lst i am not able to get jones in the ouput , is it because of space issue? 2)how to...

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Hello people I have a doubt about awk... I�m using it to create a condition where I do not want to use the 0 (zero) value of a certain column. - This is the original file: string,number,date abc,0,20050101 def,1,20060101 ghi,2,20040101 jkl,12,20090101 mno,123,20020101...

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doubt in awk

Hi , I have a file in the below format: 1.txt awk 'BEGIN { printf ("%1s", "man" )} ' awk 'BEGIN { printf ("%9s", "women" )} ' awk 'BEGIN { printf ("%56s", "human")} ' ## ### ## echo "$!" ## awk 'BEGIN { printf ("%1s", "aaa" )} ' awk 'BEGIN { printf ("%19s", "bbb" )} ' ...

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doubt on awk

I have executed the below command: find . -name "Ks*" -type f -exec ls -ltr {} \; | awk '{printf("%ld %s %d %s \n",$5,$6,$7,$8,$9)}' and here is the output: 1282 Oct 7 2004 51590 Jul 10 2006 921 Oct 7 2004 1389 Jun 4 2003 1037 May 19 2004 334 Mar 24 2004 672 Jul 8 2003 977...

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Awk doubt

I have a file sample.txt with the following contents: the following gives output as awk 'NF{s=$0; print s}' sample.txt but, awk 'NF{s=$0}{print s}' sample.txtgives output as why this difference, can someone explain me?

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a doubt in awk

instead of writing print command in awk, i saw in some posts that we can simply write a number before we end the awk command and it will print the file. As given below: $awk '{some manipulation; print}' filename $awk '{some manipulation}1' filename I also tried replacing the...

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Doubt in awk

Hi, I got a below requirement from this forum, but the solution provided was not clear. Below is the requirement Input file A 1 Z A 1 ZZ B 2 Y B 2 AA Required output B Y|AA A Z|ZZ

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free

FREE(9r)																  FREE(9r)

NAME

       FREE - General: Deallocates (frees) the allocated kernel virtual memory

SYNOPSIS

       #include <sys/malloc.h>

       FREE(
	       void *addr,
	       int type );

ARGUMENTS

       Specifies the memory pointer that points to the allocated memory to be freed. You must have previously set this pointer in the call to MAL-
       LOC. You also define the data type for this argument in the call to MALLOC.  Specifies the purpose for which the memory is being allocated.
       The  memory  types  are	defined in the file <malloc.h>. Typically, kernel modules use the constant M_DEVBUF to indicate that kernel module
       memory is being allocated (or freed).

DESCRIPTION

       The FREE routine deallocates (frees) the allocated kernel virtual memory, which you allocated in a previous call to MALLOC.

NOTES

       A memory corruption can occur if a kernel module continues to use the memory after freeing it. The operating  system  provides  a  built-in
       mechanism to debug such erroneous use of memory. You can enable this debugging feature at boot time by providing the following boot parame-
       ter: kmem_debug=1. When you enable this debugging feature, the FREE routine stores the following in the last word of freed memory: The pro-
       gram counter (pc) of the module that last freed the memory The checksum of the memory content

       The  MALLOC routine checks the checksum of the memory content before reallocating this corrupted memory. If the checksum of the memory con-
       tent does not match the corrupted memory, MALLOC stores the debug information and then causes the  kernel  to  panic.  The  MALLOC  routine
       stores the address and size of the corrupted memory and the pc of the routine that last freed it in a kmem_corrupt_data structure.

       You  should  consider  the  following  when using this debugging feature: This debugging feature does not detect cases where the corruption
       occurs after malloc reallocates the freed memory to some other module.  There is a small chance that the pc of the routine that	freed  the
       memory (stored in the last word of freed memory) may itself become corrupted.

RETURN VALUES

       None

SEE ALSO

       Routines: MALLOC(9r)

																	  FREE(9r)

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LEARN ABOUT OSF1

free