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To Count a particular string with spaces in a file

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Top Forums Shell Programming and Scripting To Count a particular string with spaces in a file
# 8  
Old 09-01-2010
[/COLOR]
Quote:
Originally Posted by vgersh99
Code:
#!/bin/ksh
 
str='no rows selected'
 
num=$(awk '{n+=gsub(str,"")}END{print n}' str="${str}" mySampleFile.txt)
echo "Total number of [${str}] = ${num}"


The above code is working great if we are looking in a file, simillarly can anyone help me getting the same output by looking in a variable instead of a file which has data.

for example when looking for count of a string "no rows selected" in a variable $SQL_STRING with data:

no rows selected no rows selected
ora - 12345 sql querry failed
no rows selected

should get me an output 3.
Last edited by vpv0002; 09-01-2010 at 08:00 PM..
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LEARN ABOUT DEBIAN

concat

concat(3tcl)						       Tcl Built-In Commands						      concat(3tcl)

__________________________________________________________________________________________________________________________________________________

NAME

       concat - Join lists together

SYNOPSIS

       concat ?arg arg ...?
_________________________________________________________________

DESCRIPTION

       This  command  joins  each of its arguments together with spaces after trimming leading and trailing white-space from each of them.  If all
       the arguments are lists, this has the same effect as concatenating them into a single list.  It permits any number of arguments; if no args
       are supplied, the result is an empty string.

EXAMPLES

       Although concat will concatenate lists, flattening them in the process (so giving the following interactive session):

	      % concat a b {c d e} {f {g h}}
	      a b c d e f {g h}

       it will also concatenate things that are not lists, as can be seen from this session:

	      % concat " a b {c   " d "  e} f"
	      a b {c d e} f

       Note also that the concatenation does not remove spaces from the middle of values, as can be seen here:

	      % concat "a   b	c" { d e f }
	      a   b   c d e f

       (i.e., there are three spaces between each of the a, the b and the c).

SEE ALSO

       append(3tcl), eval(3tcl), join(3tcl)

KEYWORDS

       concatenate, join, lists

Tcl									8.3							      concat(3tcl)