CODEWITHSUNDEEP
bashawkcut
dbo
dbo

Reputation: 77

use cut inside awk to extract substring of a field

1) I have a Source_File.csv which looks like this

A;B;/Path/xx/file1_name
C;D;/anotherPath/yyyyy/file2_name

2) I want to produce a Target_File.csv

A;B;/Path/xx/;/Path/xx/file1_name
C;D;/anotherPath/yyyyy/;/anotherPath/yyyyy/file2_name

The command

cat Source_File.csv | awk -F";" '{print $1";"$2";"echo $3 |
cut -d'/' -f1,2,3";"$3}' >> Target_File.csv;

gives this error

awk: {print $1";"$2";"echo $3 | cut -d/ -f1,2,3";"$3}
awk:                                       ^ syntax error

Thanks in advance for your Advices/Suggestions

Upvotes: 1

Views: 5754

Answers (3)

anubhava
anubhava

Reputation: 784968

No need to use cat, cut etc. Just awk alone is enough:

awk 'BEGIN{FS=OFS=";"} {s=$NF; sub(/[^\/]+$/, "", s); print $1,$2,s,$NF}' Source_File.csv
A;B;/Path/xx/;/Path/xx/file1_name
C;D;/anotherPath/yyyyy/;/anotherPath/yyyyy/file2_name

Upvotes: 3

datta
datta

Reputation: 29

What you are trying to do is extract the directory name and full file name as two separate components.

You can do this easily within awk using split() and arrays as -

cat /tmp/t.csv | awk -F";" '{ n=split($3, a, "/"); s1=""; i=1; while (i

A;B;//Path/xx;/Path/xx/file1_name C;D;//anotherPath/yyyyy;/anotherPath/yyyyy/file2_name

Easier would be to use just bash and do cat /tmp/t.csv | sed -e 's/;/ /g' | while read a b c; do echo "$a;$b;dirname $c;$c" ; done

Upvotes: -1

Cyrus
Cyrus

Reputation: 88583

With sed:

sed 's|/.*/|&;&|' file

Output:

A;B;/Path/xx/;/Path/xx/file1_name
C;D;/anotherPath/yyyyy/;/anotherPath/yyyyy/file2_name

If you want to edit your file "in place" use sed's option -i.

Upvotes: 2

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