bash 使用tr删除多个文件中的换行符？
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Use tr to remove line breaks in multiple files?
提问by Ted Maclin
I have a set of several hundred .txt files that I am analyzing (ngram analysis using NSP), and I need to remove all the line breaks from each file. I can do it one at a time using tr:
我正在分析一组数百个 .txt 文件（使用 NSP 进行 ngram 分析），我需要从每个文件中删除所有换行符。我可以使用 tr 一次完成一个：
$ tr -d "\n\r" < input1.txt > output1.txt
How can I do this for my entire directory of files at once?
如何一次为我的整个文件目录执行此操作？
回答by Nick Russo
This will add -out before .txt. You haven't specified what the filenames are like, other than .txt, so hopefully you don't have input files named foo-out.txt, etc.
这将在 .txt 之前添加 -out。除了 .txt 之外，您还没有指定文件名，所以希望您没有名为 foo-out.txt 等的输入文件。
for f in *.txt
do
tr -d "\n\r" < "$f" > $(basename "$f" .txt)-out.txt
done
