#!/usr/bin/env bash echo "Digite um número" read NUM SEXTUPLO=$[$NUM*6] if [ $SEXTUPLO -gt 300 ];then echo $SEXTUPLO fi
Standard input is empty
Digite um número
./prog.sh: line 6: *6: syntax error: operand expected (error token is "*6") ./prog.sh: line 8: [: -gt: unary operator expected