shell脚本之if elif写法

#!/bin/bash a=100 b=150 if [ $a == $b ] then echo "a==b" elif [ $a -gt $b ] then echo "a > b" elif [ $a -lt $b ] then echo "a < b" else echo "a b not known" fi
输出结果:
a < b
#!/bin/bash a=100 b=150 if [ $a == $b ] then echo "a==b" elif [ $a -gt $b ] then echo "a > b" elif [ $a -lt $b ] then echo "a < b" else echo "a b not known" fi
输出结果:
a < b