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Shell Programming and Scripting

searching pattern in another file and print

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# 1  
Old 10-26-2007
searching pattern in another file and print
Suppose u have a file
12
22
73

another file
L22D SSS
S12J LLL
H77K PPP
J25O LOP
I73S lOP
K99O PLO


so output shud like
S12J LLL
L22D SSS
I73S lOP

Thanks
# 2  
Old 10-26-2007
Code:
#!/bin/sh
# search_these_patterns.sh
pattern_file=$1
another_file=$2
for pattern in `cat $pattern_file`
do
    grep $pattern $another_file
done

Run this script as:
Code:
sh search_these_patterns.sh pattern_file another_file > new_file

# 3  
Old 10-26-2007
Code:
grep -F -f a_file another_file

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