awk evaluating a string as a math expression Post: 302841217

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

String math help needed

#!/usr/bin/ksh #LOGFILE=/var/opt/ixos/log/notification_warning.log #DAT1=/var/opt/ixos/monitor/percentages.dat #DAT2=/var/opt/ixos/monitor/mountpoints.dat THRESHOLD=75 #`rm $DAT1` #`rm $DAT2` `bdf | grep /var/opt/ixos | awk '{ print $4 }' | cut -f1 -d"%" > test.dat` `bdf | grep...

2. Shell Programming and Scripting

How can awk search a string without using regular expression?

Hello, Awk seem treat the pattern as regular expression, how can awk search not using regular expression? e.g. just represent for "", not "A" or "a" . I don't want to add backslash .

3. UNIX for Dummies Questions & Answers

awk logic and math help

Hi, My file has 2 fields and millions of lines. variableStep chrom=Uextra span=25 201 0.5952 226 0.330693 251 0.121004 276 0.0736858 301 0.0646982 326 0.0736858 401 0.2952 426 0.230693 451 0.221004 476 0.2736858 Each field either has a...

4. Shell Programming and Scripting

awk math operation on two files

Hi, I need your help. I've got two files and i need to add 2nd line after occurrence of "Group No X" from data2.txt to 3rd line (after occurrence of "Group No X") from data1.txt. There is the same number of "Groups" in both files and the numbers of groups have the same pattern. data1.txt Group...

5. Shell Programming and Scripting

Need help with AWK math

I am trying to do some math, so that I can compare the average of six numbers to a variable. Here is what it looks like (note that when I divide really big numbers, it isn't a real number): $ tail -n 6 named.stats | awk -F\, '{print$1}' 1141804 1140566 1139429 1134210 1084682 895045...

6. Shell Programming and Scripting

awk math and csv output

Hi I have this list 592;1;Z:\WB\DOCS;/FS3_100G/FILER112/BU/MPS/DOCS;;;;\\FILER112\BUMPS-DOCS\;580,116,544,878 Bytes;656,561 ;77,560 592;2;Z:\WB\FOCUS;/FS3_100G/FILER112/BU/MPS/FOCUS;;;;\\FILER112\BUMPS-FOCUS\;172,430 Bytes;6 ;0 ...

7. Solaris

Korn shell - evaluating string gives wrong results due to limitations

Anyone ever seen this? Someone mentioned this the other day.... If you do, for instance, in korn shell, echo $(5.2+2.5), it gives the result of 6 regardless. Can't remember why but it was the limitation of the korn shell.

8. Shell Programming and Scripting

Count math using awk

Hi expert, I have log : TOTAL-TIME : 2125264636 DATA-BYTES-DOWN : 3766111307032 DATA-BYTES-UP : 455032157567 DL = (3766111307032/2125264636)/1024 = 1.73 UL = (455032157567/2125264636)/1024 = 0.21 I want the result : TOTAL = 1.94 ...

9. Shell Programming and Scripting

Math count %memory using awk

Hi expert, i have log this: Memory: 74410384 Memory: 75831176 Memory: 77961232 Memory: 77074656 Memory: 76086160 Memory: 77128592 Memory: 78045384 Memory: 76696040 Memory: 72401176 Memory: 72520016 Memory: 72137016 Memory: 73175832 Memory: 73034528 Memory: 71770736 Memory:...

10. UNIX for Dummies Questions & Answers

awk If expression - Return string if not true

Hi, I have the following txt file List_With_Duplicates.txt; a,1,1 b,3,4 c,5,2 d,6,1 e,3,3 f,3,7 When I run the command awk -F ',' '{if($2==$3){print $1","$2","$3}}' List_With_Duplicates.txt I get the following output; a,1,1 e,3,3 This works! as I've compared the 2nd & 3rd...

LEARN ABOUT PHP

boolval

BOOLVAL(3)								 1								BOOLVAL(3)

boolval - Get the boolean value of a variable

SYNOPSIS

       boolean boolval (mixed  $var)

DESCRIPTION

	Returns the boolean value of $var.

PARAMETERS

	      o $var
		- The scalar value being converted to a boolean.

RETURN VALUES

	The boolean value of $var.

EXAMPLES

       Example #1

	      boolval(3) examples

	      <?php
	      echo '0:	      '.(boolval(0) ? 'true' : 'false')."
";
	      echo '42:       '.(boolval(42) ? 'true' : 'false')."
";
	      echo '0.0:      '.(boolval(0.0) ? 'true' : 'false')."
";
	      echo '4.2:      '.(boolval(4.2) ? 'true' : 'false')."
";
	      echo '"":       '.(boolval("") ? 'true' : 'false')."
";
	      echo '"string": '.(boolval("string") ? 'true' : 'false')."
";
	      echo '"0":      '.(boolval("0") ? 'true' : 'false')."
";
	      echo '"1":      '.(boolval("1") ? 'true' : 'false')."
";
	      echo '[1, 2]:   '.(boolval([1, 2]) ? 'true' : 'false')."
";
	      echo '[]:       '.(boolval([]) ? 'true' : 'false')."
";
	      echo 'stdClass: '.(boolval(new stdClass) ? 'true' : 'false')."
";
	      ?>

	      The above example will output:

	      0:	false
	      42:	true
	      0.0:	false
	      4.2:	true
	      "":	false
	      "string": true
	      "0":	false
	      "1":	true
	      [1, 2]:	true
	      []:	false
	      stdClass: true

SEE ALSO

       floatval(3), intval(3), strval(3), settype(3), is_bool(3), Type juggling.

PHP Documentation Group 														BOOLVAL(3)