[英]How can I pass in this echo statement into my function in bash?
bitToSixtyFour () {
echo "$((2#$1))"
}
while true
do
if (( i == ${#newString} || i >= ${#newString} ))
then
break
fi
echo ${newString:i:i+6} | bitToSixtyFour
i+=6
done
So in my while loop I am trying to figure out how to pass in the echo statement into my function bitToSixtyFour as a parameter. 因此,在我的while循环中,我试图找出如何将echo语句作为参数传递到我的函数bitToSixtyFour中。 It is saying that bitToSixtyFour is not found.
就是说找不到bitToSixtyFour。
As defined the function takes argument $1
from command line : 按照定义,该函数从命令行获取参数
$1
:
bitToSixtyFour arg1
to read from standard input read
从标准输入
read
bitToSixtyFour() {
read varname
echo $((2#$varname))
}
echo 1010 | bitToSixtyFour
it would be more efficient to use a variable to avoid creating subshell and pipes 使用变量来避免创建子外壳和管道会更有效
bitToSixtyFour() {
bitToSixtyFour=$((2#$1))
}
newString=1100101010011110101110110001100110
for ((i=0;i<${#newString};i+=6)); do
substr=${newString:i:6}
bitToSixtyFour "$substr"
printf "%3s %s\n" "$bitToSixtyFour" "$substr"
done
and with question definition 并带有问题定义
bitToSixtyFour() {
echo "$((2#$1))"
}
newString=1100101010011110101110110001100110
for ((i=0;i<${#newString};i+=6)); do
substr=${newString:i:6}
res=$(bitToSixtyFour "$substr")
printf "%3s %s\n" "$res" "$substr"
done
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