CODEWITHSUNDEEP
regexunix
cybertextron
cybertextron

Reputation: 10971

replacing one word by another in an entire directory - unix

I'm refactoring some code, and I decided to replace one name by another, let's say foo by bar. They appear in multiple .cc and .h files, so I would like to change from:

Foo key();

to

Bar key();

that's it, replace all the occurrences of Foo by Bar in Unix. And the files are in the same directory. I thought about

sed -e {'s/Foo/Bar/g'}

but I'm unsure if that's going to work.

Upvotes: 2

Views: 1430

Answers (5)

Stephen Ostermiller
Stephen Ostermiller

Reputation: 25524

I like Jaypal's sed command. It useds \b to ensure that you only replace full words (Foo not Foobar) and it makes backup files in case something went wrong.

However, if all of your files are not in one directory, then you will need to use a more sophisticated method to list them all. Use the find command to send them all to sed:

 find . -print0 -regex '.*\.\(cc\|h\)' | xargs -0 sed -i'.bak' 's/\bFoo\b/Bar/g'

Upvotes: 1

itsmejodie
itsmejodie

Reputation: 4228

I don't use sed alot, but iF you have access to Perl on the command line (which many unix's do) you can do: 

perl -pi -e 's/Foo key/Bar key/g' `find ./ -name '*.h' -o -name '*.cc'`

This will find (recursively) all files in the current directory ending with .h or .cc and then use Perl to replace 'Foo key' with 'Bar key' in each file.

Upvotes: 1

kainaw
kainaw

Reputation: 4334

I would use sed:

sed -i.bak -e '/Foo/ s//Bar/g' /path/to/dir/*.cc

Repeat for the *.h files

Upvotes: 1

jaypal singh
jaypal singh

Reputation: 77105

This should do the trick:

sed -i'.bak' 's/\bFoo\b/Bar/g' *.files

Upvotes: 8

kgdesouz
kgdesouz

Reputation: 1996

You probably have perl installed (if its UNIX), so here's something that should work for you:

perl -e "s/Foo/Bar/g;" -pi.save $(find path/to/DIRECTORY -type f)

Note, this provides a backup of the original file, if you need that as a bit of insurance.

Otherwise, you can do what @Kevin mentioned and just use an IDE refactoring feature.

Note: I just saw you're using Vim, here's a quick tutorial on how to do it

Upvotes: 0

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