awk script to check and throw error for multiplication result

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Percentage / Multiplication in Shell Script

Hello, I am trying to compute the percentage in a script as shown below: PerCover=`echo "scale=2 ; 100 \* ($InputCover/$Total)" | bc` However the PerCover value is blank/null. What do I need to do differently? Thanks for your input! ~Guss

2. Shell Programming and Scripting

Multiplication of a column from 2 files using awk

Hi, I have two files (file1.txt, file2.txt) in which, I would like to multiply all the values in file1 with the first row value of file2, file1 * second row value of file2, file1 * third row value of file2 and so on. Below are my sample data. file1.txt file2.txt ...

3. Shell Programming and Scripting

search line with more than two dots if so throw error

Hi, I have a requirement like i have to search a script and find names that conatins more than two dots, if so then throw error. For ex: a1.b1.comname here i have to find comname and check two dots. it will not throw error a1.b1.c1.comname here it contains more than 2dots it will throw...

4. Shell Programming and Scripting

Error with "multiplication table" in shell script

#!/bin/sh echo Enter the multiplication number required: read number for i in 1 2 3 4 5 6 7 8 9 10 do echo "$number * $i = expr $number \* $i" done I am not getting the output for this multiplication table.

5. Shell Programming and Scripting

Find Command in the script throw error

Hi I have script that is developed to serch for 30 days old Directory & Files and then remove them ... when i run it successfully removes the Directory & files & but it throw errors on the screen .. .. + find . -type f -mtime +30 -exec rm -f {} ; + exit please help me ?? I...

6. Shell Programming and Scripting

program for multiplication in shell script

Hi, I wanted to write a schell program that fetches the values from a file and prints the output as its onerall multiplication. for example I have a file named abc. it has values 2, 3, 4 now my program should give me 2*3*4 ie 24. note:this file abc can have any numbers. so experts,...

7. UNIX for Dummies Questions & Answers

if a file is empty throw an error

I want to count the number of lines in a file and store it in a variable if this count is zero i hv to throw an error ...is this syntax correct , but i am not getting the desired result I am not using -s option here as i am concerned about record count not the size #!/bin/ksh set $count1...

8. Shell Programming and Scripting

using awk multiplication

Suppose i have a file A 1*2*3*4 2*4*4*22 and second file B 2*3*4*5 4*4*6*7 By multiplying file A by file B that is file A by first column in file B respectively output shud be 2*6*12*20 8*16*24*154 my code is =$1 next } {for (f=1;f<=NF;f++)

9. Shell Programming and Scripting

throw a generic message upon error

hi all, in ksh, is there a way to throw a generic error message. i have lots of commands in my script and i didnt want to put if ; then doStuff(); else print "an error occured, please run script again"; fi around all the commands used. is there a way detect a command has...

10. UNIX for Dummies Questions & Answers

multiplication shows syntax error

my shell script is simple arithmetic process.my addtion,substract and divide all can be worked only except multiplication.please help me.the shell is following: #!/usr/bin/sh echo "enter a number1:" read number1 echo "enter an operator:" read operator echo "enter a number2:" read number2...

LEARN ABOUT LINUX

igawk

IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME

       igawk - gawk with include files

SYNOPSIS

       igawk [ all gawk options ] -f program-file [ -- ] file ...
       igawk [ all gawk options ] [ -- ] program-text file ...

DESCRIPTION

       Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).

       AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like

	      @include getopt.awk

       in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.

OPTIONS

       See gawk(1) for a full description of the AWK language and the options that gawk supports.

EXAMPLES

       cat << EOF > test.awk
       @include getopt.awk

       BEGIN {
	    while (getopt(ARGC, ARGV, "am:q") != -1)
		 ...
       }
       EOF

       igawk -f test.awk

SEE ALSO

       gawk(1)

       Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.

AUTHOR

       Arnold Robbins (arnold@skeeve.com).

Free Software Foundation					    Nov 3 1999								  IGAWK(1)

Shell Programming and Scripting