Issue on awk input parameter in ksh

Question

I am running this script:

INPUTNAME=ABC.XYZ
FILENAME="Sample.xml"

    awk -v inputName=$INPUTNAME '
      /<machine.*name=/ { f=1 ; m=0 ; res="" }
      f { res = res $0 ORS }
      f && /<details input="inputName"/ { m=1 }
      /<\/machine>/ { f=0 ; if (m) print res $0 }
     ' $FILENAME

to get an output like this

<machine name="sample1" min="1" max="10" idleTime="300" backend="ABC,XYZ">
                <handler className="com.abc.xyz.qwerty.foo.FooBar" />
                <details input="ABC.XYZ" suggExpiry="30" minExpiry="4" maxExpiry="500"/>
                </machine>

but the parameter input is failing. What seems to be wrong in the script?

NOTE:

I ran it with hardcoded values (not using parameters) and it run smoothly

What exactly do you want to achieve? Please give input and desired output examples. — chaos
– chaos, Commented Jun 3, 2015 at 10:50
variables defined using -v can be used only in the BEGIN block. See man page for awk here - unixhelp.ed.ac.uk/CGI/man-cgi?awk (search for -v) — amisax
– amisax, Commented Jun 3, 2015 at 10:52
is single quote next to $INPUTNAME with out space a typo ? you MUST have a space. — Archemar
– Archemar, Commented Jun 3, 2015 at 10:55

Archemar · Accepted Answer · 2015-06-03 13:34:40Z

1

I am not sure awk will replace a variable by it's value in

 f && /<details input="inputName"/

you might wish to replace by

 f && /<details input="/ && index($2,inputName) > 0

edit:

final awk part should be:

    /<machine.*name=/ { f=1 ; m=0 ; res="" }
    f { res = res $0 ORS }
    f && /<details input="/ && index($2,inputName) > 0 { m=1 ;}
    /<\/machine>/ { f=0 ; if (m) print res  ;  } ## last line already in res

edited Jun 3, 2015 at 13:34

answered Jun 3, 2015 at 10:59

Archemar

32.3k18 gold badges75 silver badges107 bronze badges

I am getting two enclosing tags </machine></machine> in the end

Philip Morris
– Philip Morris

2015-06-03 13:22:22 +00:00
Commented Jun 3, 2015 at 13:22
last line is added twice, I'll edit my answer.

Archemar
– Archemar

2015-06-03 13:32:38 +00:00
Commented Jun 3, 2015 at 13:32

Add a comment |

Janis · Accepted Answer · 2015-06-03 11:08:37Z

0

Since inputName is a variable you can not use repexp constants /.../ (like in f && /<details input="inputName"/). Instead use dynamic regexps through strings:

f && $0 ~ "<details input=" inputName

where you concatenate the string "..." with variable inputName.

(Note: Since you are processing XML, keep in mind, when processing XML end-tags, that in strings any \ will need an extra level of escaping.)

answered Jun 3, 2015 at 11:08

Janis

14.4k4 gold badges28 silver badges42 bronze badges

This didnt work Janis but the other answer worked for me. Still, I thank you for this.

Philip Morris
– Philip Morris

2015-06-03 13:12:52 +00:00
Commented Jun 3, 2015 at 13:12

Add a comment |

Stack Exchange Network

Issue on awk input parameter in ksh

2 Answers 2

edit:

You must log in to answer this question.

Hot Network Questions

Issue on awk input parameter in ksh

2 Answers 2

edit:

You must log in to answer this question.

Related

Hot Network Questions