Using awk to read a specific line and a specific field on that line. Post: 302543310

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to append a character to the last but one field on a specific line?

Hi Guys, I have a file like this: aaa b c d e f fsss g h i k l qqq r t h n I want: aaa b c d e f fsss g h i k l qqq r t h , n ggg p t e d u qqq i o s , k

2. Shell Programming and Scripting

replacing field in specific line in a file

Hi, I know there are lots of threads on replacing text within files, usually using sed or awk. However, I find it hard to adapt examples that I found to my specific case. I am kind of new to UNIX and have hard times learning the syntax either for sed or awk so I would appreciate any help. Here's...

3. Shell Programming and Scripting

Counting rows line by line from a specific column using Awk

Dear UNIX community, I would like to to count characters from a specific row and have them displayed line-by-line. I have a file called testAwk2.csv which contain the following data: rabbit penguin goat giraffe emu ostrich I would like to count in the middle row individually...

4. Shell Programming and Scripting

Replace specific field on specific line sed or awk

I'm trying to update a text file via sed/awk, after a lot of searching I still can't find a code snippet that I can get to work. Brief overview: I have user input a line to a variable, I then find a specific value in this line 10th field in this case. After asking for new input and doing some...

5. Shell Programming and Scripting

Update specific field in a line of text file

I have a text file like this: subject1:LecturerA:10 subject2:LecturerA:40 if I was given string in column 1 and 2 (which are subject 1 and LecturerA) , i need to update 3rd field of that line containing that given string , which is, number 10 need to be updated to 100 ,for example. The...

6. Shell Programming and Scripting

How to read particular line in file from specific column?

Hi...friends.... I want to create inventory...information for that I need to read some specific row say 2nd row from 1st 3 column and and write data with particular file used, I have some more column also but I need only 3 column data of first entry after header I attached sample file..those...

7. Shell Programming and Scripting

To read specific line from a file

Hi, I have a ldif file like below: version: 1 dn: cn=Test Group,ou=Applications,dc=xyz,dc=com objectClass: groupOfUniqueNames objectClass: top cn: Test Group uniqueMember: uid=abc,ou=People,o=xyz,o=Corporate,dc=xyz,dc=com dn: cn=Test Sub Group,cn=Test...

8. Shell Programming and Scripting

How to print with awk specific field different from specific character?

Hello, i need help with awk. I have this file: cat number DirB port 67 er_enc_out 0 er_bad_os 0 DirB port 71 er_enc_out 56 er_bad_os 0 DirB port 74 er_enc_out 0 er_bad_os 0 DirB port 75 ...

9. Shell Programming and Scripting

Add specific string to last field of each line in perl based on value

I am trying to add a condition to the below perl that will capture the GTtag and place a specific string in the last field of each line. The problem is that the GT value used is not right after the tag rather it is a few fields away. The values should always be 0/1 or 1/2 and are in bold in the...

10. Shell Programming and Scripting

awk to combine all matching fields in input but only print line with largest value in specific field

In the below I am trying to use awk to match all the $13 values in input, which is tab-delimited, that are in $1 of gene which is just a single column of text. However only the line with the greatest $9 value in input needs to be printed. So in the example below all the MECP2 and LTBP1...

LEARN ABOUT DEBIAN

ausearch_add_timestamp_item

AUSEARCH_ADD_TIMESTAMP_ITEM(3)					  Linux Audit API				    AUSEARCH_ADD_TIMESTAMP_ITEM(3)

NAME

       ausearch_add_timestamp_item - build up search rule

SYNOPSIS

       #include <auparse.h>

       int ausearch_add_timestamp_item(auparse_state_t *au, const char *op, time_t sec, unsigned milli, ausearch_rule_t how)

DESCRIPTION

       ausearch_add_timestamp_item  adds an event time condition to the current audit search expression. The search conditions can then be used to
       scan logs, files, or buffers for something of interest. The op parameter specifies the desired comparison. Legal op values are <, <=, >=, >
       and  =.	 The left operand of the comparison operator is the timestamp of the examined event, the right operand is specified by the sec and
       milli parameters.

       The how value determines how this search condition will affect the existing search expression if one is already defined. The possible  val-
       ues are:

	      AUSEARCH_RULE_CLEAR
		     Clear the current search expression, if any, and use only this search condition.

	      AUSEARCH_RULE_OR
		     If a search expression E is already configured, replace it by (E || this_search_condition).

	      AUSEARCH_RULE_AND
		     If a search expression E is already configured, replace it by (E && this_search_condition).

RETURN VALUE

       Returns -1 if an error occurs; otherwise, 0 for success.

APPLICATION USAGE

       Use  ausearch_add_item(3)  and ausearch_add_interpreted_item(3) to add conditions that check audit record fields.  Use ausearch_add_expres-
       sion(3) to add complex search expressions using a single function call.

SEE ALSO

       ausearch_add_expression(3),  ausearch_add_item(3),  ausearch_add_interpreted_item(3),  ausearch_add_regex(3),  ausearch_set_stop(3),  ause-
       arch_clear(3), ausearch_next_event(3), ausearch-expression(5).

AUTHOR

       Miloslav Trmac

Red Hat 							     Nov 2007					    AUSEARCH_ADD_TIMESTAMP_ITEM(3)