sed command to delete text after match not working
I have been using the sed command in the following fashion:
sed -i 's/\(.*\MODEL1_INPUT_DIR:\).*/\1/g' /file1 sed -i 's/\(.*\MODEL2_INPUT_DIR:\).*/\1/g' /file2 sed -i 's/\(.*\MODEL3_INPUT_DIR:\).*/\1/g' /file3 sed -i 's/\(.*\dpt_DIR:\).*/\1/g' /file1 sed -i 's/\(.*\wbt_DIR:\).*/\1/g' /file2 etc.. And everything works fine, such that whenever it finds these strings within their respective files, it deletes the line after the string. However, for this particular instance: sed -i 's/\(.*\WF_INPUT_DIR:\).*/\1/g' /file1 It is not working. Furthermore, any instance when the first two letters are "WF", the sed command does not seem to recognize this pattern and does not delete anything after this. For example: sed -i 's/\(.*\WF_FLAG:\).*/\1/g' /file1 sed -i 's/\(.*\WF_OUTPUT_DIR:\).*/\1/g' /file1 would not work either, such that any text after these strings are not deleted. Any thoughts? |
Welcome. Can you please show some sample data for the sed statement in question?
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Quote:
Lacking that, I offer this guess: You have over-used the backslash character. \W specifies a word boundary and you probably didn't intend that. Try changing this ... Code:
sed -i 's/\(.*\WF_INPUT_DIR:\).*/\1/g' /file1 Code:
sed -iE 's/(.*WF_INPUT_DIR:).*/\1/g' /file1 . |
As others have pointed out, an example of the input and the expected output are very helpful to others in understanding your question.
Please review the Site FAQ for guidance in asking well formed questions, and especially the links at bottom of that page. All that said, I believe danielbmartin has pointed to the most obvious problem. Welcome to LQ, and good luck! |
One oddity: If your pattern is designed to find the first match and delete the rest of the line, then adding the g qualifier which finds all matches is meaningless. It probably doesn't hurt anything in this case - unless you wanted to preserve multiple occurrences of the pattern.
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