linux - find matching text and replace next line -


i'm trying find line in file , replace next line specific value. tried sed, seems not \n. how else can done?

the file looks this:

<key>connectionstring</key> <string>anything_could_be_here</string>

and i'd change this

<key>connectionstring</key> <string>changed_value</string>

here's tried:

sed -i '' "s/<key>connectionstring<\/key>\n<string><\/string>/<key>connectionstring<\/key>\n<string>replaced_text<\/string>/g" /path/to/file

this might work (gnu sed):

sed '/<key>connectionstring<\/key>/!b;n;c<string>changed_value</string>' file

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