Sponsored Content
Full Discussion: AwK printf question
Top Forums UNIX for Dummies Questions & Answers AwK printf question Post 302150175 by strike-2 on Monday 10th of December 2007 12:17:10 PM
Old 12-10-2007
You don't need a for loop

I know it's been over a year, but maybe someone else will benefit from this.
If you want to print everything but a number of fields, set them to "" (null)

So, to print everything past $2, type:
awk '{ $1=""; $2=""; print $0}' foo.log

This can be shortened to:
awk '{ $1=$2=""; print $0}' foo.log

Be sure never to set $0 to null, because that will nuke your entire string.Smilie
 

10 More Discussions You Might Find Interesting

1. Programming

Question: pthread_cancel() and printf()

Hello! First of all, sorry for my English, I'm not a native English speaker. I know, that printf() function uses write() function. "man cancellation" says that write() function is a cancellation point. But when I call pthread_cancel() for my thread, which calls printf() in infinite cycle, it... (4 Replies)
Discussion started by: prankster
4 Replies

2. Programming

multiple forks and printf question

Hello *NIX gurus, I have a slight perplexing problem with multiple forks giving different results... Here is the deal. From what I undestand, a fork() call starts executing from the next instruction that follows the fork() call. That means it inherits the PC counter register value of the... (4 Replies)
Discussion started by: navigator
4 Replies

3. Shell Programming and Scripting

printf question

can you take input from another command and do printf? such as awk '{print $2,$1}' | sort -k1,1 -k2,2 | printf "%-10s,%15s" this does not work.. but there must be a way.. please help me.. thank you. (3 Replies)
Discussion started by: hankooknara
3 Replies

4. Shell Programming and Scripting

awk and printf

echo $bbsize 1.5 echo $fillpercent .95 echo $bbsize | awk '{printf "%.2f\n",$0*$fillpercent}' 2.25 echo $bbsize | awk '{printf "%.2f\n",$0*.95}' 1.42 1.42 is what I'm expecting... echo $blocksize 4096 echo $bbsize | awk '{printf "%.2f\n",$0*$blocksize}' 2.25 echo $bbsize |... (3 Replies)
Discussion started by: xgringo
3 Replies

5. Shell Programming and Scripting

IF and awk/printf

Hi Friends, Scripting newb here. So I'm trying to create a geektool script that uses awk and printf to output certain fields from top (namely command, cpu%, rsize, pid and time, in that order). After much trial and error, I've pretty much succeeded, with one exception. Any process whose name... (3 Replies)
Discussion started by: thom.mattson
3 Replies

6. Shell Programming and Scripting

AWK printf help

Target file contains short text (never more than 1 line) and filenames. The format is, e.g.,: TEXT1 filename1 TEXT2 TEXT3 filename3dddd filename3dddd TEXT4 filename4 TEXT5 filename5dddd filename5dddd filename5 where dddd is a random 4-digit whole number. Desired output: (4 Replies)
Discussion started by: uiop44
4 Replies

7. Shell Programming and Scripting

awk with printf

Hi, I am using the following code to assign a count value to a variable. But I get nothing. Do you see anything wrong here. I am new to all this. $CTR=`remsh $m -l $MACHINES{$m} -n cat $output | grep -v sent | grep \"$input\" | sort -u | awk '{print $5}'`; Upto sort - u it's... (2 Replies)
Discussion started by: nurani
2 Replies

8. UNIX for Dummies Questions & Answers

AWK printf command question

Hi, I am using below awk code to convert a csv file data into fixed file format. awk 'BEGIN { FS = "," fmt = "%10s%010d%10s%d%1d\n" } NR>1 { printf fmt, $1, $2, $3, $4*100, $5 }' /data/mydata.csv > /data/fixed.dat Data in mydata.csv ================... (1 Reply)
Discussion started by: kbmkris
1 Replies

9. Shell Programming and Scripting

AWK printf command question

Hi, I am using below awk code to convert a csv file data into fixed file format. awk 'BEGIN { FS = "," fmt = "%10s%010d%10s%d%1d\n" } NR>1 { printf fmt, $1, $2, $3, $4*100, $5 }' /data/mydata.csv > /data/fixed.dat Data in mydata.csv ================... (2 Replies)
Discussion started by: kbmkris
2 Replies

10. Shell Programming and Scripting

Printf question: getting padded zero in decimal plus floating point together.

Hi Experts, Quick question: I am trying to get the output with decimal and floating point but not working: echo "20.03" | awk '{printf "%03d.2f\n" , $0 }' 020.2f How to get the output as : 020.03 Thank you. (4 Replies)
Discussion started by: rveri
4 Replies
MYSQLI_FETCH_FIELD_DIRECT(3)						 1					      MYSQLI_FETCH_FIELD_DIRECT(3)

mysqli_result::fetch_field_direct - Fetch meta-data for a single field

       Object oriented style

SYNOPSIS
object mysqli_result::fetch_field_direct (int $fieldnr) DESCRIPTION
Procedural style object mysqli_fetch_field_direct (mysqli_result $result, int $fieldnr) Returns an object which contains field definition information from the specified result set. PARAMETERS
o $ result -Procedural style only: A result set identifier returned by mysqli_query(3), mysqli_store_result(3) or mysqli_use_result(3). o $fieldnr - The field number. This value must be in the range from 0 to number of fields - 1. RETURN VALUES
Returns an object which contains field definition information or FALSE if no field information for specified fieldnr is available. Object attributes +-----------+---------------------------------------------------+ |Attribute | | | | | | | Description | | | | +-----------+---------------------------------------------------+ | name | | | | | | | The name of the column | | | | | orgname | | | | | | | Original column name if an alias was specified | | | | | table | | | | | | | The name of the table this field belongs to (if | | | not calculated) | | | | | orgtable | | | | | | | Original table name if an alias was specified | | | | | def | | | | | | | The default value for this field, represented as | | | a string | | | | |max_length | | | | | | | The maximum width of the field for the result | | | set. | | | | | length | | | | | | | The width of the field, as specified in the table | | | definition. | | | | |charsetnr | | | | | | | The character set number for the field. | | | | | flags | | | | | | | An integer representing the bit-flags for the | | | field. | | | | | type | | | | | | | The data type used for this field | | | | | decimals | | | | | | | The number of decimals used (for numeric fields) | | | | +-----------+---------------------------------------------------+ EXAMPLES
Example #1 Object oriented style <?php $mysqli = new mysqli("localhost", "my_user", "my_password", "world"); /* check connection */ if (mysqli_connect_errno()) { printf("Connect failed: %s ", mysqli_connect_error()); exit(); } $query = "SELECT Name, SurfaceArea from Country ORDER BY Name LIMIT 5"; if ($result = $mysqli->query($query)) { /* Get field information for column 'SurfaceArea' */ $finfo = $result->fetch_field_direct(1); printf("Name: %s ", $finfo->name); printf("Table: %s ", $finfo->table); printf("max. Len: %d ", $finfo->max_length); printf("Flags: %d ", $finfo->flags); printf("Type: %d ", $finfo->type); $result->close(); } /* close connection */ $mysqli->close(); ?> Example #2 Procedural style <?php $link = mysqli_connect("localhost", "my_user", "my_password", "world"); /* check connection */ if (mysqli_connect_errno()) { printf("Connect failed: %s ", mysqli_connect_error()); exit(); } $query = "SELECT Name, SurfaceArea from Country ORDER BY Name LIMIT 5"; if ($result = mysqli_query($link, $query)) { /* Get field information for column 'SurfaceArea' */ $finfo = mysqli_fetch_field_direct($result, 1); printf("Name: %s ", $finfo->name); printf("Table: %s ", $finfo->table); printf("max. Len: %d ", $finfo->max_length); printf("Flags: %d ", $finfo->flags); printf("Type: %d ", $finfo->type); mysqli_free_result($result); } /* close connection */ mysqli_close($link); ?> The above examples will output: Name: SurfaceArea Table: Country max. Len: 10 Flags: 32769 Type: 4 SEE ALSO
mysqli_num_fields(3), mysqli_fetch_field(3), mysqli_fetch_fields(3). PHP Documentation Group MYSQLI_FETCH_FIELD_DIRECT(3)
All times are GMT -4. The time now is 09:10 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy