Replacing caret characters with sed

问题

I have lines in a file that look like this:

FA General,1234567^^^^^FA Student Letter- General^<<undefined>>^\\path\to\file.RTF

I'm trying to use sed to replace the caret characters with commas. If I use:

sed 's/\^/,/' file.txt

Nothing changes. I've also tried

sed 's/\\^/,/' file.txt
sed 's/^^/,/' file.txt

What am I missing here?

回答1:

Do you want to replace all carets? I am sure if you look closely at your result you'll see that the first caret is replaced. So try this:

sed -e 's/\^/,/g' file.txt

Note the g to mean global replace, i.e, all matches.

回答2:

Or try the y command:

sed 'y/^/,/'

来源：https://stackoverflow.com/questions/15687044/replacing-caret-characters-with-sed