Strange Issue

[inderPunj]

Hi,

I am writing a bash script, Here i am using following commands to generate logs :-

cp -rf ${LOGFILE} ${VALUE}.${TASK}.${ENVIRONMENT}.`date +%Y%m%d%H%M%S`.log

Here at my case TASK would be of two types - Do or Don't

If i will use Do it will generate a log file like :- 2008.Do..20080827180934

because in my script if i use Do Task then there is no value set for ENVIRONMENT Variable, And if i use Don't It will assign a variable ENVIRONMENT and i am getting valid log file with proper names i.e.

2008.Don't.ob.20080827180934

I want to remove extra . from 008.Do..20080827180934 so that i can get 2008.Do.20080827180934

Can somebody please help me.
Great Thanks in advance,
Inder

[wowbag1]

Hi,
An idea that I would do is to write it as a script witha conditional check so that it escapes the extra dot when certain input is entered or values of the variables.

wowbag1

[secondmouse]

Replace the dot right after ${ENVIRONMENT} with
${ENVIRONMENT:+.}
that is,
cp -rf ${LOGFILE} ${VALUE}.${TASK}.${ENVIRONMENT}${ENVIRONMENT:+.}`date +%Y%m%d%H%M%S

${ENVIRONMENT:+.} returns . if $ENVIRONMENT exists and is not null, otherwise returns null.

More variable mangling can be found at Variable Mangling in Bash with String Operators LG #57