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I have a word document, it contains some confidential information like it has NIC:343434343. I need a regular expression which will do the following thing.
if it finds NIC on a line it should replace the whole line with specified text.
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To expand the regex to match a complete line, add ‹ . * › at both ends. The dot-asterisk sequences match zero or more characters within the current line.
To use RegEx, the first argument of replace will be replaced with regex syntax, for example /regex/ . This syntax serves as a pattern where any parts of the string that match it will be replaced with the new substring. The string 3foobar4 matches the regex /\d. *\d/ , so it is replaced.
Find and replace text within a file using sed command Use Stream EDitor (sed) as follows: sed -i 's/old-text/new-text/g' input.txt. The s is the substitute command of sed for find and replace. It tells sed to find all occurrences of 'old-text' and replace with 'new-text' in a file named input.txt.
Since by default the dot does not match NewLine, you can simply use
.*NIC.*
to find lines containing "NIC". You'd use this expression like
string result = Regex.Replace(originalString, ".*NIC.*", "replacement string");
You can see it at work at ideone.com.
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Use the start and end-of-line markers:
^.*NIC.*$
^ matches the start of line and $ matches the end of line. This will cause the entire line to be matched, if it contains "NIC" at least once.
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