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When I use this command on the terminal, there is no output(no text at all on the terminal). However doing wc -l on the output gives the output 539. Then I tried to redirect the output of this command (grep command that you mentioned) to some text file, I got the results. Why was there nothing to display on the terminal? Also, when I redirected the output to a file, I got getting some lines with empty second column.Upendra01– Upendra012016-02-08 07:59:18 +00:00Commented Feb 8, 2016 at 7:59
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@Snowbell check the second one..heemayl– heemayl2016-02-08 08:06:51 +00:00Commented Feb 8, 2016 at 8:06
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grep '^[^[:blank:]]\+[[:blank:]]\+[^[:blank:]]\+$' file.txt. This command is behaving in the same manner as the first one(no output at terminal; output is displayed only when command output is redirected to some file). Moreover, this command produces a files with (116) lines only. Also, there were only few lines with second column that was not empty.Upendra01– Upendra012016-02-08 08:10:05 +00:00Commented Feb 8, 2016 at 8:10
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@Snowbell Please edit your question to add some example text so that we can verify this..heemayl– heemayl2016-02-08 08:14:02 +00:00Commented Feb 8, 2016 at 8:14
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I have added two samples of my input file and the corresponding output that I received...Upendra01– Upendra012016-02-08 09:24:21 +00:00Commented Feb 8, 2016 at 9:24
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