Search for a string


 
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# 1  
Old 12-11-2006
Search for a string

Hi All,

I have a shell script which accepts a parameter. I want to check whether the parameter value contains a particular string. To the best of my knowledge, grep works on a file, not on a parameter value. How can i do a search of the string and proceed.

Any help would be appreciated.

Thanks,
Sumesh
sumesh.abraham
# 2  
Old 12-11-2006
I think you are trying something like this:
Code:
#! /bin/ksh
echo $1
if [[ $1 == "Y" ]]; then
        echo "Yes"
else
        echo "No"
fi

Output:
Code:
$./test.sh Y
Y
Yes
$./test.sh N
N
No

# 3  
Old 12-11-2006
Quote:
To the best of my knowledge, grep works on a file, not on a parameter value
Well, it can work on stdin too like most of unix commands
Code:
export YOURVALUE="something's going on"
echo $YOURVALUE |grep thing > /dev/null
[ $? -eq 1 ] && echo "No match!"

# 4  
Old 12-11-2006
Hi,

Not really! I've to check the paramater value against two string values. ie, i want to check the parameter value contains either "Loss" or "Profit" in it.

It will be something like this.

#! /bin/sh

$input=$1
if [ <check whether $1 contains the strings specified> ]
then
<statement 1>
else
<statement 2>
fi
sumesh.abraham
# 5  
Old 12-11-2006
Code:
#! /bin/sh

input=$1
if [ "$input" = "Loss" ]
then
<statement 1>
elif [ "$input" = "Profit" ]
<statement 2>
fi

# 6  
Old 12-11-2006
Hi,

I should do a pattern matching here against the two strings specified, not a direct comparison.
sumesh.abraham
# 7  
Old 12-11-2006
All solutions satisfy your requirements, you just need to modify them as per your requirements, we can give you a start or hint, not a complete solution. Do whatever you want as per the given hints.
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