How to evaluate expression under awk? Post: 303002126

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Check for more than one expression using AWK

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

2. Shell Programming and Scripting

Regular expression in AWK

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...

3. UNIX for Dummies Questions & Answers

Awk inside Awk expression

Hi, It can be used awk inside other Awk?. I need to get another text processing while other text process. Thank you.

4. Shell Programming and Scripting

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

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...

5. Shell Programming and Scripting

awk if statement to evaluate string and compare

I have the following simplified code that I am planning on putting into a larger shell script. I have been butchering it to try and make work amongst google searches and reading awk documentation. amixer sset Master toggle | awk '{ if ( /^ Front Left/ { print $7 } == // ) print "MUTED" }'I...

6. Shell Programming and Scripting

Help in understanding awk expression

Hi, Could somebody help me in understanding the following awk expression: awk -v n="POINT" '/%/{print $0 "\n" n ;next}1' < file name Thanks, Arun

7. Shell Programming and Scripting

awk regular expression

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" ||...

8. Shell Programming and Scripting

awk print expression

Hi All, I have a doubt in awk print exp. Where in some awk commands have seen a digit 1 appended at the end of the awk ,didnt remember the command . like .. cat file |awk '{print }1' Could some one help in understanding these cases where we use them. Regards, Ganesh,

9. Shell Programming and Scripting

How to evaluate a variable name on LHS of expression?

I am trying to write a simple function to select values from a database and assign them to variables. It can have any number of arguments sent into it, and I want to assign the value retrieved to a different variable name for each argument sent in. So my code looks something like this: ...

10. Shell Programming and Scripting

Evaluate Expression within awk

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...

LEARN ABOUT DEBIAN

prima::calendar

Prima::Calendar(3)					User Contributed Perl Documentation					Prima::Calendar(3)

NAME

       Prima::Calendar - standard calendar widget

SYNOPSIS

	       use Prima::Calendar;
	       my $cal = Prima::Calendar-> create(
		       useLocale => 1,
		       onChange  => sub {
			       print $_[0]-> date_as_string, "
";
		       },
	       );
	       $cal-> date_from_time( localtime );
	       $cal-> month( 5);

DESCRIPTION

       Provides interactive selection of date between 1900 and 2099 years.  The main property, date, is a three-integer array, day, month, and
       year, in the format of perl localtime ( see "localtime" in perlfunc ) - day can be in range from 1 to 31,month from 0 to 11, year from 0 to
       199.

API

   Events
       Change
	   Called when the date property is changed.

   Properties
       date DAY, MONTH, YEAR
	   Accepts three integers in format of "localtime".  DAY can be from 1 to 31, MONTH from 0 to 11, YEAR from 0 to 199.

	   Default value: today's date.

       day INTEGER
	   Selects the day in month.

       firstDayOfWeek INTEGER
	   Selects the first day of week, an integer between 0 and 6, where 0 is Sunday is the first day, 1 is Monday etc.

	   Default value: 0

       month
	   Selects the month.

       useLocale BOOLEAN
	   If 1, the locale-specific names of months and days of week are used.  These are read by calling "POSIX::strftime". If invocation of
	   POSIX module fails, the property is automatically assigned to 0.

	   If 0, the English names of months and days of week are used.

	   Default value: 1

	   See also: date_as_string

       year
	   Selects the year.

   Methods
       can_use_locale
	   Returns boolean value, whether the locale information can be retrieved by calling "strftime".

       month2str MONTH
	   Returns MONTH name according to useLocale value.

       make_months
	   Returns array of 12 month names according to useLocale value.

       day_of_week DAY, MONTH, YEAR, [ USE_FIRST_DAY_OF_WEEK = 1 ]
	   Returns integer value, from 0 to 6, of the day of week on DAY, MONTH, YEAR date. If boolean USE_FIRST_DAY_OF_WEEK is set, the value of
	   "firstDayOfWeek" property is taken into the account, so 0 is a Sunday shifted forward by "firstDayOfWeek" days.

	   The switch from Julian to Gregorian calendar is ignored.

       date_as_string [ DAY, MONTH, YEAR ]
	   Returns string representation of date on DAY, MONTH, YEAR according to useLocale property value.

       date_from_time SEC, MIN, HOUR, M_DAY, MONTH, YEAR, ...
	   Copies date from "localtime" or "gmtime" result. This helper method allows the following syntax:

		   $calendar-> date_from_time( localtime( time));

AUTHOR

       Dmitry Karasik, <dmitry@karasik.eu.org>.

SEE ALSO

       Prima, Prima::Widget, POSIX, "localtime" in perlfunc, "time" in perlfunc, examples/calendar.pl.

perl v5.14.2							    2009-02-24							Prima::Calendar(3)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Check for more than one expression using AWK

Discussion started by: visakhcr

2. Shell Programming and Scripting

Regular expression in AWK

Discussion started by: jolecanard

3. UNIX for Dummies Questions & Answers

Awk inside Awk expression

Discussion started by: pepeli30

4. Shell Programming and Scripting

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

Discussion started by: vivek_shm74