OBJECTIVE: find all files with the word "start" in /etc/init.d and copy to a Tng directory

directory - /home/user/Tng
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EXAMPLE 1:

 cp `find /etc/init.d -exec grep -l start {} \; ` /home/user/Tng

# grep -l - lists only files

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EXAMPLE 2:

 find /etc/init.d -type f -exec grep -q start {} \; -exec cp {} /home/user/Tng \;

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EXAMPLE 3:

 find /etc/init.d -exec grep -l start {} \; |  xargs -i cp {} /home/user/Tng 

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EXAMPLE 4:

 find /etc/init.d -type f -exec grep -l start {} \; -exec cp {} /home/user/Tng \;