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Top Forums Shell Programming and Scripting Variable resolution in File content Post 302837365 by Scott on Thursday 25th of July 2013 03:33:22 PM
Old 07-25-2013
Code:
while read FRUIT DESC; do eval echo $FRUIT $DESC; done < File1

(don't let that input file out of your sight Smilie)

Code:
$ ls -l
total 16
-rwxr--r--  1 scott  staff  64 25 Jul 21:48 myScript
-rw-r--r--  1 scott  staff  82 25 Jul 21:49 file
$ 
$ cat myScript
while read FRUIT DESC; do
  eval echo $FRUIT $DESC
done < File
$ 
$ cat file
apple ${FRUIT}-Color
orange ${FRUIT}-Color
banana ${FRUIT}-Color $(rm file)
$ 
$ ./myScript
apple apple-Color
orange orange-Color
banana banana-Color
$ 
$ ls -l
total 8
-rwxr--r--  1 scott  staff  64 25 Jul 21:48 myScript


Last edited by Scott; 07-25-2013 at 04:54 PM.. Reason: Added danger-of-eval example
 

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