How to evaluate expression under awk? Post: 303002130

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I have a txt file like below: testin.txt AB BC CD DE I have the following awk script BEGIN {flag1="N"} /(AB)|(BC)|(CD)|(DE)/ {flag1="Y"} END {print flag1} >awk -f testin.awk testin.txt Returns Y

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Hello world, I was wondering if there is a nicer way to write the following code (in AWK): awk ' FNR==NR&&$1~/^m$/{tok1=1} FNR==NR&&$1~/^m10$/{tok1=1} ' my_file In fact, it looks for m2, m4, m6, m8 and m10 and then return a positive flag. The problem is how to define 10 thanks...

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Hi, I am trying to do evaluate one numerical string after substitution. ++++++++++++++++== What I have = "7.04+2.3Xlog(0.72e-6X1.0e6)X1.9596" What I need = evaluate 7.04+2.3*log(0.72e-6*1.0e6)*1.9596 = 5.55941 what I am doing; echo "7.04+2.3Xlog(0.72e-6X1.0e6)X1.9596" | awk...

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Hello, I have big files which I wanna filter them based on first column. first column should be one of these strings: chr2L || chr2R || chr3L || chr3R || chr4 || chrX and something like chr2Lh or chrY or chrM3L is not accepted. I used the following command: awk '{ if ($1=="chr2L" ||...

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I want to create a conditional expression string and pass in an awk script. My script is as below... comm="\$3 == "hello"" awk -F "^T" -v command="${comm}" ' { if ( command ) { print "hye" } }' testBut the statement "if ( command )" always evaluates to true which is not...

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pmdate

PMDATE(1)						      General Commands Manual							 PMDATE(1)

NAME

       pmdate - display an offset date

SYNOPSIS

       pmdate [ offset ... ] format

DESCRIPTION

       pmdate displays the current date and/or time, with an optional offset.

       An offset is specified with a leading sign (``+'' or ``-''), followed by an integer value, followed by one of the following ``scale'' spec-
       ifiers;

       S      seconds
       M      minutes
       H      hours
       d      days
       m      months
       y      years

       The output format follows the same rules as for date(1) and strftime(3).

       For example, the following will display the date a week ago as DDMMYYYY;
	       pmdate -7d %d%m%Y

PCP ENVIRONMENT

       Environment variables with the prefix PCP_ are used to parameterize the file and directory names used by PCP.  On  each	installation,  the
       file  /etc/pcp.conf contains the local values for these variables.  The $PCP_CONF variable may be used to specify an alternative configura-
       tion file, as described in pcp.conf(5).

SEE ALSO

       date(1), strftime(3), pcp.conf(5) and pcp.env(5).

Performance Co-Pilot							PCP								 PMDATE(1)

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Discussion started by: jolecanard

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How to evaluate a string of numbers in the same command of AWK

Discussion started by: vivek_shm74