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assinging the printf result to varaibles

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http://www.unix.com – Getting the below error while executing this. Able to run the below commands Individually. #!/bin/bash a=$(printf "%d\n" 0x01E); b=$(printf "%d\n" 0x01A); echo $a echo $b c=`expr $a - $b` echo $c syntax error at line 2: `a=$' unexpected (HowTos)