Sponsored Content
Top Forums Shell Programming and Scripting Check in awk about a value of variable Post 302302165 by fpmurphy on Monday 30th of March 2009 09:08:17 AM
Old 03-30-2009
Code:
#
# return number of digits if str is all digits
# otherwise return 0
#
function countdigits( str )
{
   digits = 0
   len = split( str, a ,"" )
   for ( i = 1; i <= len; i++ )
       if (( a[i] + 0 ) == a[i] )
          digits++

   if ( len == digits )
      return digits
   else
      return 0
}

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to check if a variable contains a .

Hi I am writing a bash script and would like to check is a variable contains a . or not ex. a=102 output ok a=1.02 output not ok Many thanks, (3 Replies)
Discussion started by: gekkos
3 Replies

2. Shell Programming and Scripting

Check if a variable has a value assigned?

Hi, I want to check if a variable has a value assigned to it or not. I can do following - cat $Var > File1 if then echo "$Var has value" else echo "$Var is null" fi But I have to check for 3 Variables and I want to wrap it up in couple of unix statements. Any... (3 Replies)
Discussion started by: sumeet
3 Replies

3. Shell Programming and Scripting

assign awk's variable to shell script's variable?

Dear All, we have a command output which looks like : Total 200 queues in 30000 Kbytes and we're going to get "200" and "30000" for further process. currently, i'm using : numA=echo $OUTPUT | awk '{print $2}' numB=echo $OUTPUT | awk '{print $5}' my question is : can I use just one... (4 Replies)
Discussion started by: tiger2000
4 Replies

4. Shell Programming and Scripting

Check if a variable is zero

I have seen many posts for this sort of problem but I just did not know how to use it for my issue. A number is assigned to a variable and I wanted to check if it is a zero or non zero. Example of my numbers are below: 000000000000000000000000000000000000000000000000... (8 Replies)
Discussion started by: soujiv
8 Replies

5. Shell Programming and Scripting

using awk for setting variable but change the output of this variable within awk

Hi all, Hope someone can help me out here. I have this BASH script (see below) My problem lies with the variable path. The output of the command find will give me several fields. The 9th field is the path. I want to captured that and the I want to filter this to a specific level. The... (6 Replies)
Discussion started by: Cowardly
6 Replies

6. Shell Programming and Scripting

Check the value of a variable

#!/bin/sh echo "Running Script to capture ORACLE Erros" # Change Directory to the actual logs path cd /home/nv8510/lognew err_var=`grep -in "ORA-" *` if then echo "THESE ARE THE ORACLE ERROR OCCURED" echo "$err_var" echo... (7 Replies)
Discussion started by: neeraj617
7 Replies

7. Shell Programming and Scripting

HELP with AWK one-liner. Need to employ an If condition inside AWK to check for array variable ?

Hello experts, I'm stuck with this script for three days now. Here's what i need. I need to split a large delimited (,) file into 2 files based on the value present in the last field. Samp: Something.csv bca,adc,asdf,123,12C bca,adc,asdf,123,13C def,adc,asdf,123,12A I need this split... (6 Replies)
Discussion started by: shell_boy23
6 Replies

8. Shell Programming and Scripting

Check if a variable is having value

I have a script /root/asas with following contents. #!/bin/bash ha=`cat /etc/passwd | grep sandra` if ; then echo "Sandra is in /etc/passwd" echo "variable ha is $ha" else echo "Sandra is NOT in /etc/passwd" echo "variable ha is $ha" fi What... (3 Replies)
Discussion started by: anil510
3 Replies

9. Shell Programming and Scripting

Check variable

Hi people, I would like to start a review of my config variable to check whether they have been changed and if not then there is only an echo. If they have been changed to my other commands are executed. I hope you can help me. with best regards JPad edit: here my code if ;... (8 Replies)
Discussion started by: JPad
8 Replies

10. UNIX for Beginners Questions & Answers

How can I assign awk's variable to shell script's variable?

I have the following script, and I want to assign the output ($10 and $5) from awk to N and L: grdinfo data.grd | awk '{print $10,$5}'| read N L output from gridinfo data.grd is: data.grd 50 100 41 82 -2796 6944 0.016 0.016 3001 2461. where N and L is suppose to be 3001 and 100. I use... (8 Replies)
Discussion started by: geomarine
8 Replies
curs_instr(3X)															    curs_instr(3X)

NAME
instr, innstr, winstr, winnstr, mvinstr, mvinnstr, mvwinstr, mvwinnstr - get a string of characters from a curses window SYNOPSIS
#include <curses.h> int instr(char *str); int innstr(char *str, int n); int winstr(WINDOW *win, char *str); int winnstr(WINDOW *win, char *str, int n); int mvinstr(int y, int x, char *str); int mvinnstr(int y, int x, char *str, int n); int mvwinstr(WINDOW *win, int y, int x, char *str); int mvwinnstr(WINDOW *win, int y, int x, char *str, int n); DESCRIPTION
These routines return a string of characters in str, extracted starting at the current cursor position in the named window. Attributes are stripped from the characters. The four functions with n as the last argument return a leading substring at most n characters long (exclu- sive of the trailing NUL). RETURN VALUE
All of the functions return ERR upon failure, or the number of characters actually read into the string. X/Open defines no error conditions. In this implementation, if the window parameter is null or the str parameter is null, a zero is returned. NOTES
Note that all routines except winnstr may be macros. PORTABILITY
SVr4 does not document whether a length limit includes or excludes the trailing NUL. The ncurses library extends the XSI description by allowing a negative value for n. In this case, the functions return the string ending at the right margin. SEE ALSO
curses(3X). curs_instr(3X)
All times are GMT -4. The time now is 09:47 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy