英文:
Just trying to delete lines of several .txt files - but keep getting SED error
问题
我目前正在尝试删除许多 .txt 文件的前 23 行。这是我目前正在做的：
sed -i -e 1,23d * .txt
但它给我一个奇怪的错误：
sed: 1: "1,23": command expected
我不知道该怎么办。
英文:
So, I am trying to delete the first 23 lines of many .txt files. This is what I am currently doing:
sed -i -e 1,23d * .txt
but it gives me a weird error:
sed: 1: "1,23": command expected
I have no idea what to do. _
答案1
得分: 2
像这样：
sed -i -e '1,23d' *.txt
# ^ 必须的 'd'
# ^
# * 和 .txt 之间不要有空格
英文:
Like this:
sed -i -e '1,23d' *.txt
# ^ mandatory 'd'
# ^
# no space between * and .txt
答案2
得分: 0
以下是翻译好的部分：
原始问题（在编辑之前）显示：
sed -i -e 1,23d * .txt
但是给我一个奇怪的错误：
sed: Applications: in-place editing only works for regular files
“*”和“.txt”之间的空格是一个错误，但解释了奇怪的错误：它查找所有文件以及隐藏文件“.txt”。
Linux认为目录“Application”是一个文件，但“sed”不能在文件上工作。
目录“Application”暗示文件可能来自Windows。
另一个问题是为什么“echo *.txt”没有显示Mia所期望的txt文件。一个合乎逻辑的解释是这些文件起源于Windows，而Mia不知道Linux是区分大小写的。像“A.TXT”和“b.Txt”这样的文件不匹配“*.txt”。
当所有txt文件都以TXT结尾时，可以使用：
sed -i -e '1,23d' *.TXT
当你有大小写混合时，最简单的方法是：
sed -i -e '1,23d' *.[tT][xX][tT]
希望这对你有所帮助。
英文:
The original question (before editing) showed:
sed -i -e 1,23d * .txt
but it gives me a weird error:
sed: Applications: in-place editing only works for regular files
The space between * and .txt was a mistake, but is an explanation of the weird error: It looks for all files as well as for the hidden file .txt.
Linux considers the directory Application as a file, but sed does not work on files.
The directory Application suggests that the files might come from Windows.
Another question is why echo *.txt don't show the txt files Mia was expecting. A logical explanation is that the files originated from Windows and Mia doesn't know that Linux is case sensitive. Files like A.TXT and b.Txt don't match *.txt.
When all txt files end with TXT, you can do
sed -i -e '1,23d' *.TXT
When you have a mix of upper- and lower case, the easiest way is
sed -i -e '1,23d' *.[tT][xX][tT]
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论