bash : read a line from a file and interpret this line [duplicate]

Question

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I have a file with this line for example :

${blue}*Passed*${NC}: check the command line ...

I can read in bash this line :

red='\e[41m'
blue='\e[1;34m'
purple='\e[1;31m'
NC='\e[0m' # No Color

 while read line
 do
      echo -e $line
 done < test_contest

But the output is like this :

${blue}Passed${NC}: check the command line ...

there is no color, can bash interpret this line to output color ?

whoan · Accepted Answer · 2014-10-23 14:20:27Z

up vote 1 down vote accepted

Just change:

echo -e $line

With:

eval echo -e \"$line\"

answered Oct 22 '14 at 13:10

whoan

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marked as duplicate by chepner bash Oct 22 '14 at 13:22