awk is not shell. It does not have shell variables or shell substitutions. If you want shell variables in awk, you have to put them there. If you want substitutions, you'll have to use awk's.
$ means column in awk. That's why $1 gets you column one. Variables are just strings, like VAR=1. You can use an expression as a column number too, like print $(VAR+1) for column 2.
So, to get your variables, into awk, you will have to put them into awk.
Or the more old-fashioned
To get pixels, in awk code, I'd do this:
Also, doing grep | grep | grep | awk is pointless when it's that easy to just put it all in awk. You can replace this:
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... (6 Replies)
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$1}'
1141804
1140566
1139429
1134210
1084682
895045... (3 Replies)
hi I want to write a script, while using the SED editor, to output the text, in this case a variable, to the result file but highlighted it in bold, is it possible to do that? can you tell me how?
eg. in text.txt
sed '$ a\
'$variable'
' <text.txt >text2.txt
so it will add the... (2 Replies)
Hi I have this list
592;1;Z:\WB\DOCS;/FS3_100G/FILER112/BU/MPS/DOCS;;;;\\FILER112\BUMPS-DOCS\;580,116,544,878 Bytes;656,561 ;77,560
592;2;Z:\WB\FOCUS;/FS3_100G/FILER112/BU/MPS/FOCUS;;;;\\FILER112\BUMPS-FOCUS\;172,430 Bytes;6 ;0 ... (12 Replies)
Based on input
ail,UTT,id1_0,COMBO,21,24,21,19,85
al,UTHAST,id1_0,COMBO,342,390,361,361,1454
and awk code as
awk -F, '{ K=0; for(i=NF; i>=(NF-4); i--) { K=K+$i; J=J+$i;} { print K } } END { for ( l in J ) printf("%s ",J); }'
I'm trying to add columns and lines in single line. line... (6 Replies)
Hi
main object is categorize the difference of data-values (TLUFT02B - TLUFT12B).
herefor i read out data-files which are named
acording to the timeformat yyyymmddhhmm.
WR030B 266.48 Grad 0
WR050B 271.46 Grad 0
WR120B 268.11 Grad 0
WV030B 2.51 m/s ... (6 Replies)
Hi expert,
I have log :
TOTAL-TIME : 2125264636
DATA-BYTES-DOWN : 3766111307032
DATA-BYTES-UP : 455032157567
DL = (3766111307032/2125264636)/1024 = 1.73
UL = (455032157567/2125264636)/1024 = 0.21
I want the result :
TOTAL = 1.94 ... (4 Replies)
FYI,
I'm slowly removing a lot of the bold font-styles from titles of discussions, forum titles, etc
I'm not removing bold for the entire site because we do need bold from time to time, especially in posts and sometimes in other places.
However, the original forum style had way too much... (3 Replies)
Discussion started by: Neo
3 Replies
LEARN ABOUT MOJAVE
english
English(3pm) Perl Programmers Reference Guide English(3pm)NAME
English - use nice English (or awk) names for ugly punctuation variables
SYNOPSIS
use English;
use English qw( -no_match_vars ) ; # Avoids regex performance penalty
# in perl 5.16 and earlier
...
if ($ERRNO =~ /denied/) { ... }
DESCRIPTION
This module provides aliases for the built-in variables whose names no one seems to like to read. Variables with side-effects which get
triggered just by accessing them (like $0) will still be affected.
For those variables that have an awk version, both long and short English alternatives are provided. For example, the $/ variable can be
referred to either $RS or $INPUT_RECORD_SEPARATOR if you are using the English module.
See perlvar for a complete list of these.
PERFORMANCE
NOTE: This was fixed in perl 5.20. Mentioning these three variables no longer makes a speed difference. This section still applies if
your code is to run on perl 5.18 or earlier.
This module can provoke sizeable inefficiencies for regular expressions, due to unfortunate implementation details. If performance matters
in your application and you don't need $PREMATCH, $MATCH, or $POSTMATCH, try doing
use English qw( -no_match_vars ) ;
. It is especially important to do this in modules to avoid penalizing all applications which use them.
perl v5.18.2 2014-01-06 English(3pm)