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matching characters between strings

 
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Top Forums UNIX for Dummies Questions & Answers matching characters between strings
# 8  
Old 12-08-2006
Quote:
Originally Posted by Ygor
Or...
Code:
echo "The quick brown fox jumps over the lazy dog" | fold -1 | sort -u > file1
echo "acefizkjlfsh" | fold -1 | sort -u | egrep -f file1 > file2
echo $(wc -l < file2) [$(paste -s -d, file2)]

...gives...
Code:
11 [a,c,e,f,h,i,j,k,l,s,z]


can anyone please explain the script . what it does .. WIll be helpfull


Thanks,
Arun.
# 9  
Old 12-08-2006
Code:
echo "The quick brown fox jumps over the lazy dog" | fold -1 | sort -u > file1

fold -1 break input into single char in each line
T
h
e

Q
...

Sort -u Gives the unique lines which is sorted in ascending order

Code:
echo "acefizkjlfsh" | fold -1 | sort -u | egrep -f file1 > file2

egrep -f file1 matches all the input lines which is present in file1

Code:
echo $(wc -l < file2) [$(paste -s -d, file2)]

wc -l < file2 Gives line count

paste -s -d, file2
-s Paste in a serial way
-d delimiter
# 10  
Old 12-08-2006
Great Anbu to see the working of the command...

Thanks for your reply ..Helps me a lot .....

Thanks Again,
Arun Kumar
 
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