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通过 - 失败问题

tag-icon • tag-icon bash
通过 - 失败问题

我正在写下面给出的命令。

if ["$avg" -ge "80"]; then
echo "PASS"
else
echo "FAIL"

我收到如下错误：

x.0000000000000000 integer expression expected 
and the result of if -else statement is always wrong.

请提供帮助并建议必要的变更。

答案1

#!/bin/bash

# .........
# ........

if [ $avg -ge 80 ]
then
  echo "PASS"
else
  echo "FAIL"
fi

作为钢铁司机建议使用shellcheck. 您可以使用以下方式安装

sudo apt install shellcheck

与以下产品一起使用

shellcheck myscript.sh

对于您来说，您将获得以下输出：

In myscript.sh line 1:
if ["$avg" -ge "80"]; then
^-- SC1009: The mentioned parser error was in this if expression.
   ^-- SC1035: You need a space after the [ and before the ].
   ^-- SC1073: Couldn't parse this test expression.
                    ^-- SC1020: You need a space before the ].
                    ^-- SC1072: Missing space before ]. Fix any mentioned problems and try again.

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