bash-3.2$ cat operator1.sh operator2.sh operator3.sh
#!/bin/sh
num1=5
echo $num1
num2=$num1+10
echo $num2
#!/bin/sh
num1=5
echo $num1
expr $num1 + 7
expr $num1+7 #space matters for expr
echo $num1
#!/bin/sh
num1=5
expr $num1 * 2
expr “$num1 * 2”
expr $num1 * 2 From: http://sitestree.com/?p=12230
Categories:Linux/Unix: Shell Programming – 001
Tags:
Post Data:2018-05-06 14:40:30
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