Shell如何传递字符串

时间：2022-09-07 08:32:15

Shell 在写函数的时候，有时候需要传递字符串，由于字符串中有空格，所以结果总是不对，下面写个小例子，解决这个问题：

#!/bin/bash

# value init

TT="adb shell ls -l /data/local/tmp/";

FINAL="";

loop_count=2;

# LoopEx: excute a programm in a loop, $1 is program,$2 is loop count,

function LoopEx()

{

	Ex=$1;

	local loop_count=$2;

	echo "Programm is $Ex, loop_count ==$loop_count"

	for i in $(seq $loop_count); do

		$Ex;

	done;

}

LoopEx $TT $loop_count

　　这个输出的结果是：

Programm is adb, loop_count ==shell
seq: invalid floating point argument: shell

因为传递的字符串中有空格，解决这个问题如下，在调用函数传递参数的时候使用：

LoopEx "$TT" $loop_count 

得到正确的显示结果如下：

Programm is adb shell ls -l /data/local/tmp/, loop_count ==2
drwxrwxrwx root root 2010-01-01 23:10 CPlusPlus
-rw-rw-rw- root root 2 2014-08-07 01:54 PPAMonitorPort.pt
-rwxrwxrwx root root 153916 2014-04-17 08:33 libGLES_mali1.so
-rwxrwxrwx root root 10304 2014-04-17 08:42 libGLESv2Agent.so
-rwxrwxrwx root root 890744 2014-04-17 08:33 libppa.so
-rwxrwxrwx root root 259484 2014-04-17 08:34 librsagent.so
-rwxrwxrwx root root 471328 2014-04-17 08:33 libtunnel.so
drwxrwxr-x root root 2010-01-01 00:11 vp9Input
-rw-rw-rw- root root 24285 2014-08-07 02:30 vp9_inter_pred_4x4.cl
-rw-rw-rw- root root 40239 2010-01-01 23:56 vp9kernel.bin
-rwxrwxrwx root root 510012 2014-08-07 02:31 vpxdec
-rwxrwxrwx root root 509056 2014-07-18 07:59 vpxdec-cpu
drwxrwxrwx root root 2010-01-01 23:10 CPlusPlus
-rw-rw-rw- root root 2 2014-08-07 01:54 PPAMonitorPort.pt
-rwxrwxrwx root root 153916 2014-04-17 08:33 libGLES_mali1.so
-rwxrwxrwx root root 10304 2014-04-17 08:42 libGLESv2Agent.so
-rwxrwxrwx root root 890744 2014-04-17 08:33 libppa.so
-rwxrwxrwx root root 259484 2014-04-17 08:34 librsagent.so
-rwxrwxrwx root root 471328 2014-04-17 08:33 libtunnel.so
drwxrwxr-x root root 2010-01-01 00:11 vp9Input
-rw-rw-rw- root root 24285 2014-08-07 02:30 vp9_inter_pred_4x4.cl
-rw-rw-rw- root root 40239 2010-01-01 23:56 vp9kernel.bin
-rwxrwxrwx root root 510012 2014-08-07 02:31 vpxdec
-rwxrwxrwx root root 509056 2014-07-18 07:59 vpxdec-cpu

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