将hash-sign-starting-string参数传递给Shell脚本 [英] Pass hash-sign-starting-string parameter to a shell script

问题描述

我尝试将两个#符号之间包含的字符串传递给ksh脚本:

I try to pass a string containted between two # sign to a ksh script :

Will #> ./a.ksh #This is a string#

Will #>

不提示任何内容，执行的输出将是:

Nothing is prompted, the execpeted output would be :

Will #> ./a.ksh #This is a string#
#This is a string#

在a.ksh脚本下面.

a.ksh

echo $1
echo "$1"
echo ${1}
echo "${1}"

我尝试用我知道的任何方法来保护我的$1变量，但是我 无法显示以#开头的任何内容.

I have tried to protect my $1 variable by any means I knew but I can't get anything starting with # to be displayed.

以下追踪者无效:

#> ./a.ksh #Hello
#> ./a.ksh #

但是这样做:

#> ./a.ksh Hello#

任何能解释我为什么以及如何使它像被激怒一样工作的贝壳大师吗?

Any shell guru that could explain me why and how to get this to work as excpeted ?

我可以使用\#This String#或"#This String#"转义那些字符串，但是我想知道为什么#不能单独打印.

I can escape those string using \#This String# or "#This String#" but I wonder why does # doesn't print by itself.

推荐答案

#被解释为注释的开始.解释器将忽略所有注释.

# is interpreted as the start of a comment. All comments are ignored by the interpreter.

您有两个选择:

1. 引用该字符串以使其成为文字:

1. Quote the string to make it a literal:

./a.ksh "#This is a string#"

让脚本读取用户输入而不是参数输入:

Have your script read input from the user instead of a parameter:

这是一个例子:

#!/bin/ksh
echo "Enter your text:"
read -r input
echo "You entered: $input"

然后先运行程序，然后输入以下数据:

then run the program first and enter your data after:

$ ./a.ksh
Enter your text:
#This is a string#
You entered: #This is a string#

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