Count lines and words of a stream output with tail
Hello,
I need to tail -f a file output stream and I need to get only lines that contains "get" and "point" in the same line. It doesn't matter the order.
Then I need only the text BEFORE "point".
I have to count each line and perform other serveral actions after this has performed 3 times.
I have done something like this. But I don't know how to go on.
I am currently learning about AWK. I don't know if there's a straight forward way to do this with AWK. It would be nicer to avoid "grep".
The tail -f output would be something like this:
And after processing it, it should do something to get the lines with "get" and "point". It would see something like this:
Next step is extracting everything before "point":
Count words in each line:
And quit when this is performed 3 times. So it will quit tail -f right now because it has perform it three times.
I am getting very frustrated.. Thanks a lot for any idea you can give..
I need to tail -f a file output stream and I need to get only lines that contains "get" and "point" in the same line. It doesn't matter the order.
Then I need only the text BEFORE "point".
I have to count each line and perform other serveral actions after this has performed 3 times.
I have done something like this. But I don't know how to go on.
I am currently learning about AWK. I don't know if there's a straight forward way to do this with AWK. It would be nicer to avoid "grep".
The tail -f output would be something like this:
And after processing it, it should do something to get the lines with "get" and "point". It would see something like this:
Next step is extracting everything before "point":
Count words in each line:
And quit when this is performed 3 times. So it will quit tail -f right now because it has perform it three times.
I am getting very frustrated.. Thanks a lot for any idea you can give..
One way to do it would be to run the tail/awk pipe in a background subshell, redirect that output to a temp file, and have the parent script terminate the subshell when the file is 3 lines long.
Some rough (and untested!) code:
These 2 Users Gave Thanks to CarloM For This Post:
One way to do it would be to run the tail/awk pipe in a background subshell, redirect that output to a temp file, and have the parent script terminate the subshell when the file is 3 lines long.
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<s>
Hi PP -
my VBD -
name DT -
is NN -
. SENT .
</s>
<s>
Her PP -
name VBD -
is DT -
the NN -
same WRT -
. SENT -
</s>
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