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new to shell scripting, need some help

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new to shell scripting, need some help

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Join Date: Apr 2006

Posts: 2

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rockwell

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new to shell scripting, need some help

Apr 26th, 2006

Hi all, i am new to shell scripting and know very few basics, i have a shell script program written by some other guy and i am trying to understand it. I am unable to understand a few parts of the program, hope some one cud help me with this ....

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while [ "$?" = "0"  ]
  do
     if [ "$var" ]
     then
        echo "get /somepath/$value/$var /somepath/$var" >> testfile1.txt
     fi
     read var
  done < testfile2.txt

In the while loop what does $? mean and will it not go to an infinite loop, in the echo statement, what does get do, i guess "read var" reads a value from keyboard right, and finally what does done < testfile2.txt mean .....

Hope some one helps and thanks for your help ...

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new to shell scripting, need some help

new to shell scripting, need some help

new to shell scripting, need some help