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Perl find and replace

venhart
New User

Sep 14, 2011, 8:03 AM

Post #1 of 7 (2597 views)

Perl find and replace	Can't Post

Hi,

Please could someone advise, how I can resolve this issue with my find and replace command :

perl -i -npe "s#RLM_LICENSE.*#RLM_LICENSE=$TEAM_TOP/licenses/abc.demo.lic#;" environment.properties

$TEAM_TOP is an environment varible within my system.

when i run this perl command from a script and check the environment.properties file. It displays the full path of $TEAM_TOP

e.g.

RLM_LICENSE=/team/dev6/data/REL1_TOP/licenses/abc.demo.lic

and

I would need it to show this instead :

RLM_LICENSE=$TEAM/licenses/abc.demo.lic

thank you

rovf
Veteran

Sep 15, 2011, 3:21 AM

Post #2 of 7 (2549 views)

Re: [venhart] Perl find and replace [In reply to]	Can't Post

Your question is not fully clear to me. Could you please post

- The value of the environment variable TEAM_TOP
- The affected line in environment.properties prior to substitution

venhart
New User

Sep 15, 2011, 3:42 AM

Post #3 of 7 (2547 views)

Re: [rovf] Perl find and replace [In reply to]	Can't Post

Hi,

The value of the environment variable TEAM_TOP is :

$TEAM_TOP=/team/dev6/data/REL1_TOP

The affected line in environment.properties prior to substitution is :

RLM_LICENSE=

I need this to look like :

RLM_LICENSE=$TEAM/licenses/abc.demo.lic

and not like :

RLM_LICENSE=/team/dev6/data/REL1_TOP/licenses/abc.demo.lic

thankyou

rovf
Veteran

Sep 15, 2011, 4:04 AM

Post #4 of 7 (2545 views)

Re: [rovf] Perl find and replace [In reply to]	Can't Post

Since the substitution string is not related to your TEAM_TOP environment variable, I wonder why, then, you use this variable in substitution.

I conclude from your code that you are running on some standard shell on Linux/Unix. I would then just code it as:

Code

perl -i -npe 's#RLM_LICENSE.*#RLM_LICENSE=$TEAM/licenses/abc.demo.lic#;' environment.properties

venhart
New User

Sep 15, 2011, 4:14 AM

Post #5 of 7 (2544 views)

Re: [rovf] Perl find and replace [In reply to]	Can't Post

Hi,

Sorry i meant :

I need this to look like :

RLM_LICENSE=$TEAM_TOP/licenses/abc.demo.lic

and not like :

RLM_LICENSE=/team/dev6/data/REL1_TOP/licenses/abc.demo.lic

The Variable $TEAM_TOP is getting displayed in full as per above.

rovf
Veteran

Sep 15, 2011, 4:22 AM

Post #6 of 7 (2543 views)

Re: [venhart] Perl find and replace [In reply to]	Can't Post

Again, then I simply would not have environment variable substitution taking place. In your case, it would be

Code

perl -i -npe 's#RLM_LICENSE.*#RLM_LICENSE=$TEAM_TOP/licenses/abc.demo.lic#;' environment.properties

instead of

Code

perl -i -npe "s#RLM_LICENSE.*#RLM_LICENSE=$TEAM_TOP/licenses/abc.demo.lic#;" environment.properties

So, the problem is with shell syntax, not with Perl code...

daptal
Novice

Oct 3, 2011, 6:11 PM

Post #7 of 7 (2372 views)

Re: [venhart] Perl find and replace [In reply to]	Can't Post

Code

perl -i -npe "s#RLM_LICENSE.*#RLM_LICENSE=$TEAM_TOP/licenses/abc.demo.lic#;"

change the double quote to single quote as the interpolation is not required
ie

Code

perl -i -npe ' .... '

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