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Unix 中的错误（脚本）

发布于 2024-09-03 20:44:32 字数 64 浏览 1 评论 0原文

有人知道这个错误是什么意思？ Missing -. 在谷歌中我没有找到任何关于这个的信息

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嘿嘿嘿 2024-09-10 20:44:32

tcsh 可能产生该错误消息的唯一情况是当您尝试替换数组变量中的一系列单词时，并且选择器在语法上不正确。

引用 tcsh 手册页：

   $name[selector]
   ${name[selector]}
           Substitutes  only  the  selected  words from the value of name.
           The selector is subjected to `
例如：
$ echo $path[5-6]
/usr/sbin /usr/bin
$ echo $path[5_6]
Missing -.

也许如果您在被要求提供更多信息（例如，失败脚本中的一些代码）时进行了跟进，那么可能不需要一年多的时间才能得到答案。
 substitution and  may  consist
           of  a  single  number  or  two numbers separated by a `-'.  The
           first word of a variable's value is numbered `1'.  If the first
           number  of  a range is omitted it defaults to `1'.  If the last
           member of a range is omitted  it  defaults  to  `$#name'.   The
           selector `*' selects all words.  It is not an error for a range
           to be empty if the second argument is omitted or in range.

例如：

也许如果您在被要求提供更多信息（例如，失败脚本中的一些代码）时进行了跟进，那么可能不需要一年多的时间才能得到答案。

The only case where tcsh can produce that error message is when you're trying to substitute a range of words from an array variable, and the selector is syntactically incorrect.

Quoting the tcsh man page:

   $name[selector]
   ${name[selector]}
           Substitutes  only  the  selected  words from the value of name.
           The selector is subjected to `
For example:
$ echo $path[5-6]
/usr/sbin /usr/bin
$ echo $path[5_6]
Missing -.

Perhaps if you had followed up when you were asked for more information (like, say, some code from the failing script), it wouldn't have taken over a year to get an answer.
 substitution and  may  consist
           of  a  single  number  or  two numbers separated by a `-'.  The
           first word of a variable's value is numbered `1'.  If the first
           number  of  a range is omitted it defaults to `1'.  If the last
           member of a range is omitted  it  defaults  to  `$#name'.   The
           selector `*' selects all words.  It is not an error for a range
           to be empty if the second argument is omitted or in range.

For example:

Perhaps if you had followed up when you were asked for more information (like, say, some code from the failing script), it wouldn't have taken over a year to get an answer.

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