linux - Parsing a file which is separated by "categories" -


here issue:

a) i'm scripting newbie

b) have file need data separated csv style table, problem there 3 areas of data (see below):

(area 1, not relevant) total ipv4 packets captured: 2245686 # l4 protocol   # packets   relative frequency[%]   protocol description  1   5602       0.249456 internet control message protocol  .... (more data here)  (area 2, relevant) total tcp packets: 2238186 # port  # packets   relative frequency[%]   protocol description  22  2138555   95.548583 secure shell (ssh) protocol .... (more data here)  (area 3, relevant) total udp packets: 1623 # port  # packets   relative frequency[%]   protocol description  .... (more data here)  (area 4, relevant) total scp packets: 0 # port  # packets   relative frequency[%]   protocol description  .... (more data here)

(this tranalyzer _protocols output)

so need make output like:

# port,# packets,relative frequency[%],protocol description 22,2138555,95.548583,the secure shell (ssh) protocol,(more data...)

but need take data each area , put in separate csv file (tcp, udp, scp) flows put in table (each in different _protocols file in different subdirectories) data can go 1 of these 3 files , build memory-crushing spreadsheet (hence why csv.)

i'm open other way represent can suggest.

much appreciated!

following command extract , convert data file csv.
change x tcp, udp or scp extract particular set of data.
change <analyzer_output.txt> proper file name before executing.

x="scp"; \ cat <analyzer_output.txt> | sed "1,/^total $x/d; /^total /,\$d; /^\s*$/d" | \ sed 's/\([0-9]\)\s\+\([0-9]\)/\1,\2/g; s/\([0-9]\)\s\+\([a-za-z]\)/\1,\2/g' \ > $x.csv

resulting scp.csv file below sample data

41,2138555,95.548583,the secure shell (ssh) protocol 42,2138555,95.548583,the secure shell (ssh) protocol

sample data file

total ipv4 packets captured: 2245686 1   5602       0.249456 internet control message protocol 2   5602       0.249456 internet control message protocol  total tcp packets: 2238186 21  2138555   95.548583 secure shell (ssh) protocol 22  2138555   95.548583 secure shell (ssh) protocol  total udp packets: 1623 31  2138555   95.548583 secure shell (ssh) protocol 32  2138555   95.548583 secure shell (ssh) protocol  total scp packets: 0 41  2138555   95.548583 secure shell (ssh) protocol 42  2138555   95.548583 secure shell (ssh) protocol

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