Search & replace for a string separated by whitespace upon substring match found

Question

Below is a sample file content:

cat sample.txt

-server -XX:+UseParallelGC -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+AggressiveHeap -XX:+PrintHeapAtGC -Djava.util.logging.FileHandler.limit=12908998 -XX:ParallelGCThreads=4 -Xms1536m -Xmx1536m -Xmn512m -Xss4m -XX:LargePageSizeInBytes=4m -XX:-BindGCTaskThreadsToCPUs -XX:PermSize=256m -XX:MaxPermSize=512m -XX:MaxTenuringThreshold=3 -XX:SurvivorRatio=20 -Dweblogic.SocketReaders=10 

In a seperate mapping file, I'm given a list of strings one of which is -Djava.util.logging.FileHandler.limit. if this string is found then it should be removed along with its value.

Thus, I wish to remove the entire entry ( along with its value ) -Djava.util.logging.FileHandler.limit=12908998

I'm able to remove -Djava.util.logging.FileHandler.limit by replacing -Djava.util.logging.FileHandler.limit to null as below:

sed -e s/-Djava.util.logging.FileHandler.limit//g -i sample.txt

As regex \S*\s get me the entire string separated by whitespace I tried but failed with the below attempt:

sed -e s/-Djava.util.logging.FileHandler.limit\S*\s//g -i sample.txt

But I'm not sure how do I remove along with its value i.e. -Djava.util.logging.FileHandler.limit=12908998

Desired output:

cat sample.txt

-server -XX:+UseParallelGC -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+AggressiveHeap -XX:+PrintHeapAtGC -XX:ParallelGCThreads=4 -Xms1536m -Xmx1536m -Xmn512m -Xss4m -XX:LargePageSizeInBytes=4m -XX:-BindGCTaskThreadsToCPUs -XX:PermSize=256m -XX:MaxPermSize=512m -XX:MaxTenuringThreshold=3 -XX:SurvivorRatio=20 -Dweblogic.SocketReaders=10 

Answer 1

Your sed command is working fine, you are just missing the quotes.

sed -e 's/-Djava.util.logging.FileHandler.limit=\S*\s//g'