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Peter.O
Asked: 2010-12-25 02:38:09 +0800 CST

如何使用来自`ls`的空间嵌入数据加载`zenity`列表对话框？

  • 772

zenity当数据包含空格时， 我在加载列表对话框时遇到问题。

当列出的数据中没有空格时，这是直截了当的，
但我不知道空间嵌入文件名的简单/标准方法。

出于某种原因， $( ls -Q /tmp) 的输出（引用输出）仍然
在每个空格处拆分文件名。输出中的引号和反斜杠
ls | sed似乎被视为“最终字符串”而不是
“可读数据行”（如前两个数据行）......

我已经设法“解决这个问题”，但自我修改代码可能
不是最好的方法！（尽管它很有趣！:)

这是不起作用的方法 

zenlist="/tmp/zen list"; touch "$zenlist"
zenity --list --title='A single-column List' --width=600 --height=450 \
--column='Spaces are allowed within "q u o t e s"' \
"How much wood would a woodchuck chuck," \
"if a wooodchuck could chuck wood?" \
$(ls -Q -1 "$zenlist"* |sed 's/$/ \\/')
echo ""
# rm "$zenlist"  # Uncomment this line to delete the file

这种方法有效，但必须有一种“常规”（更好）的方法！？ 

zenlist="/tmp/zen list"
echo "zenity --list --title='A single-column List' --width=600 --height=450 \\" >"$zenlist"
echo "--column='Spaces are allowed within \"q u o t e s\"' \\"       >>"$zenlist"
echo "\"How much wood would a woodchuck chuck,\" \\"       >>"$zenlist"
echo "\"if a wooodchuck could chuck wood?\" \\" >>"$zenlist"
(ls -Q "$zenlist"* |sed 's/$/ \\/')   >>"$zenlist"
echo "" >>"$zenlist"
source "$zenlist"
# rm "$zenlist"  # Uncomment this line to delete the file
bash zenity

2 个回答

  1. Best Answer

    问题是ls。它从未被设计用于脚本。此外，ls在脚本中使用也是没有意义的，因为 shell 可以做得更好，只需使用 glob，请参阅http://mywiki.wooledge.org/BashGuide/Patterns

    zenlist="/tmp/zen list"; touch "$zenlist" "$zenlist"$'\neven with a newline'
zenity --list --title='A single-column List' --width=600 --height=450 \
       --column='Spaces are allowed within "q u o t e s"' \
       "How much wood would a woodchuck chuck," \
       "if a wooodchuck could chuck wood?" \
       "$zenlist"*

    对于将带有空格和其他字符的列表项放入“变量”的一般方法，请使用 bash 数组。

    # assign some items to start with
items=( "How much wood would a woodchuck chuck," "if a wooodchuck could chuck wood?" )

# append some items
items+=( "$zenlist"* )

zenity --list --title='A single-column List' --width=600 --height=450 \
       --column='Spaces are allowed within "q u o t e s"' "${items[@]}"
    • 6

  2. 您可以将列表内容通过管道传输到 zenity，例如

    (echo "How much wood would a woodchuck chuck," ; \
 echo "if a wooodchuck could chuck wood?" ; \
 ls -Q -1 "$zenlist"* |sed 's/$/ \\/') \
| zenity --list --title='A single-column List' --width=600 --height=450 \
         --column='Spaces are allowed within "q u o t e s"'
    • 5

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