[英]Using sed to replace '½' with '.5'
如何使用 sed 将½
替换为.5
?
Your terminal needs to support Unicode then this works:您的终端需要支持 Unicode,然后这有效:
x='sed to replace "½"'
echo "$x"| sed 's/½/.5/'
sed to replace ".5"
To substitute this in in-line in a file:要在文件中内嵌替换它:
sed -i.bak 's/½/.5/' file
:) you have to use an escape character to be able to parse 1/2 on command-line like this. :) 您必须使用转义字符才能像这样在命令行上解析 1/2。
echo "anyrandom text 1/2 asdf 1/2" | echo "anyrandom text 1/2 asdf 1/2" | sed 's/1/2/0.5/g'
sed 's/1/2/0.5/g'
/g at the end make it replace all the occurrences of the pattern. /g 最后使它替换所有出现的模式。
if you want to run it on a file: sed 's/1\\2/0.5/g' filename如果要在文件上运行它: sed 's/1\\2/0.5/g' filename
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