CODEWITHSUNDEEP
xmlbashsedgrep
Rakesh Talari
Rakesh Talari

Reputation: 71

how to replace the text line with empty line

cat fxmgr/wrapperwin32.xml | sed '//d' | sed '//d' > cleaned.xml

This will remove the comments from the xml file but I want to replace the comments with the empty lines because I dont want to disturb the other code line numbers.

ex:

line one
xml comment
xml comment
line four

output:

line one

line four

Assume 2 and 3 have the xml comments in the code. we just remove those lines and maintain the empty line. I am not able to add the exact xml comments here.So hope the above ex clarifies it.

Real Example as presented in comments:

1 <?xml version="1.0" encoding="UTF-8" ?>
2 <!---Students grades are uploaded by months----> 
3 <class_list> 
4 <student> 
5 <name>Tanmay</name> 
6 <grade>A</grade> 
7 </student> 
8 </class_list>

output

1 <?xml version="1.0" encoding="UTF-8" ?> 
2 
3 <class_list> 
4 <student> 
5 <name>Tanmay</name> 
6 <grade>A</grade> 
7 </student> 
8 </class_list

Target : Replace contents of comment line 2 with spaces (and every other comment line in xml file similar to line 2)

Upvotes: 0

Views: 114

Answers (3)

George Vasiliou
George Vasiliou

Reputation: 6345

To replace comment lines of your xml file that according your comment have this format:

2 <!---Students grades are uploaded by months---->

You can use 

sed 's/<!--.*-->/ /g' test.xml

s/ : replace operation for sed (format 's/oldtext/newtext/g') Tip : As newtext we just put a single space.

/g : is used for global replacement of all lines.

You can apply changes to the same file using sed -i , or you can redirect the output to another file by appending >newfile.xml in the end of the sed command.

Upvotes: 1

Boopathy Pandian
Boopathy Pandian

Reputation: 1

From googling I got that.

This is the command which deletes the commented lines in the XML file.

cat fxmgr/wrapperwin32.xml | sed '/<!--.*-->/d' | sed '/<!--/,/-->/d' > cleaned.xml

But I want to replace this comments with empty spaces.

Upvotes: 0

sa77
sa77

Reputation: 3603

try this to find and delete with with regular expression pattern matching.

cat fxmgr/wrapperwin32.xml | sed '/\/\//d' > cleaned.xml

Upvotes: 0

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