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05-07-2008
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Removing Blank Lines
Hi
i have the below lines from a file 7538 PRGRP450800PERSONAL SOAP AND BATH ADDITIV 7036 PRGRP450800PERSONAL SOAP AND BATH ADDITIV 7036 PRGRP450800PERSONAL SOAP AND BATH ADDITIV 7036 PRGRP450800PERSONAL SOAP AND BATH ADDITIV 7036 PRGRP450800PERSONAL SOAP AND BATH ADDITIV 7036 7538 7538 7538 PRGRP450800PERSONAL SOAP AND BATH ADDITIV 7036 PRGRP450800PERSONAL SOAP AND BATH ADDITIV 7036 PRGRP450800PERSONAL SOAP AND BATH ADDITIV 7036 PRGRP450800PERSONAL SOAP AND BATH ADDITIV 7036 PRGRP450800PERSONAL SOAP AND BATH ADDITIV 7036 PRGRP450800PERSONAL SOAP AND BATH ADDITIV 7036 I want to remove the BLANK lines from this file. I am reading a file of size atleast 1 GB. So kindly let me know which would be the best way to quickly reduce the processing time when removing the blanks. If you can give me an example that would also be fine. Regards Dhana |
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05-07-2008
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You could run the following command:
sed '/^$/d' < file1 > file2 file2 is the one without blank lines. some of the version of sed allows '-i' switch to do in place. It saves the output in the same file. |
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05-08-2008
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Code:
sed 's/^$//g' filename>newfile |
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05-08-2008
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or in grep...
Quote:
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