更新时间:2023-10-06 14:52:22
变量不在单引号内展开.使用双引号重写:
Variables are not expanded within single-quotes. Rewrite using double-quotes:
curl -X POST -H 'Content-type: application/json' --data "{"text": "${message}"}"
请记住,双引号内的双引号必须被转义.
Just remember that double-quotes within double-quotes have to be escaped.
另一种变化可能是:
curl -X POST -H 'Content-type: application/json' --data '{"text": "'"${message}"'"}'
这个从单引号中跳出来,将 ${message}
括在双引号内以防止分词,然后以另一个单引号字符串结束.即:
This one breaks out of the single quotes, encloses ${message}
within double-quotes to prevent word splitting, and then finishes with another single-quoted string. That is:
... '{"text": "'"${message}"'"}'
^^^^^^^^^^^^
single-quoted string
... '{"text": "'"${message}"'"}'
^^^^^^^^^^^^
double-quoted string
... '{"text": "'"${message}"'"}'
^^^^
single-quoted string