Removing dots and slashes when piping into new file in bash (awk)

Question

I have a bash question (when using

awk

). I'm extracting every single instance of the first and fifth column in a textfile and piping it to a new file with the following code,

cut -f4 test170201.rawtxt | awk '/stream_0/ { print $1, $5  }' > testLogFile.txt

This is part of the file (test170201.rawtxt) I'm extracting the data from, columns

Timestamp

and

Loss

,

Timestamp                 Stream     Status     Seq         Loss Bytes    Delay

17/02/01.10:58:25.212577  stream_0     OK      80281          0  1000     38473

17/02/01.10:58:25.213401  stream_0     OK      80282          0  1000     38472

17/02/01.10:58:25.215560  stream_0     OK      80283          0  1000     38473

17/02/01.10:58:25.216645  stream_0     OK      80284          0  1000     38472

This is the result I'm getting in testLogFile.txt

17/02/01.10:58:25.212577 0

17/02/01.10:58:25.213401 0

17/02/01.10:58:25.215560 0

17/02/01.10:58:25.216645 0

I want to get rid of the

"/"

,

":"

and the

"."

. The result output I want would look like this:

 170201 105825 212577 0

 170201 105825 213401 0

 170201 105825 215560 0

 170201 105825 216645 0

My question is, how do I modify my code to get the above result? The platform I'm using is Debian GNU/Linux and the GNU awk version is 4.0.1

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Answer 1

You can use the awk gsub() (global substitute) function to:

substitute . with space
remove : and /

cut -f4 test170201.rawtxt | awk '/stream_0/ { 
    gsub(/\./," ",$1)
    gsub(/[:\/]/, "", $1)
    print $1, $5
}'

In fact, the cut seems to be redundant - this will do what you require with the example data:

awk '/stream_0/ { 
    gsub(/\./," ",$1)
    gsub(/[:\/]/, "", $1)
    print $1 , $5
}' test170201.rawtxt

Removing dots and slashes when piping into new file in bash (awk)

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