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| $ cd /tmp | |
| $ echo "foo bar baz foo foo quz" > test1 | |
| $ echo "bar bar foo bar baz foo quz foo foo" > test2 | |
| $ sed -i '.bak' 's/foo/replaced/g' test* | |
| $ tail test1 test2 | |
| ==> test1 <== | |
| replaced bar baz replaced replaced quz | |
| ==> test2 <== | |
| bar bar replaced bar baz replaced quz replaced replaced | |
| $ which sed | |
| /usr/bin/sed |
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