script to export and echo.

[christiniaroelin]

Hi gurus,

i have a file variab.dat which has thousands of line as below
END_DAY='21'
END_HR='16'
MIN='03'
MTH='11'
END_YR='05'
EXT_ENDED='MONDAY NOVEMBER 21ST, 2005 16.03.27'
EXT_START='MONDAY NOVEMBER 21ST, 2005 15.59.58'

my requirement is to export these vaiables to env.

export env END_DAY='21'
export env END_HR='16'
export env MIN='03'
export env MTH='11'
export env END_YR='05'
export env EXT_ENDED='MONDAY NOVEMBER 21ST, 2005 16.03.27'
export env EXT_START='MONDAY NOVEMBER 21ST, 2005 15.59.58'


i had a for loop to prefix export to each line followed by an echo. But it takes the space as a delimiter. Also, on echo it spits out the entire line and not just the value.(i.e on echo $END_DAY gives END_DAY='21'INSTEAD OF JUST '21'.

Could you please help me on this one.

Thanks in advance
christi.

 

[PHV]

In any bourne or korn shell:
env >/tmp/env.$$.1 # environment before
set -a
. ./path/to/variab.dat
env >/tmp/env.$$.2 # environment after
set +a
diff /tmp/env.$$.? # list of environment changes

Hope This Helps, PH.
Want to get great answers to your Tek-Tips questions? Have a look at FAQ219-2884 or FAQ181-2886

 

[christiniaroelin]

PHV,

thanks for your quick response.
I need to prefix the variables in a file with export sattement and run it. Since there are thousands of records in the file, i would nee dto loop it may be awk.
could you please guide me to achieve this.

thanks
Christi.

 

[PHV]

What's wrong with my suggestion ?

 

[christiniaroelin]

PHV,

The problem is that the file doenot have export stetment.
the data file (/tmp/variadates.dat)looks like

END_DAY='21'
END_HR='16'
MIN='03'
MTH='11'
END_YR='05'
EXT_ENDED='MONDAY NOVEMBER 21ST, 2005 16.03.27'
EXT_START='MONDAY NOVEMBER 21ST, 2005 15.59.58'

i need to export each of these variables and echo it.

i tried your earlier sugesstion but got no output.

Could you please help me on this.

Thanks for your time and help.

Christi.

 

[PHV]

tried your earlier sugesstion but got no output
Really ? Which shell ?
With your posted variab.dat and the following script:
env >/tmp/env.$$.1
set -a
. ./variab.dat
env >/tmp/env.$$.2
set +a
diff /tmp/env.$$.? | sed -n 's!> !!p'

I get the following output (bourne shell):
END_DAY=21
END_HR=16
END_YR=05
EXT_ENDED=MONDAY NOVEMBER 21ST, 2005 16.03.27
EXT_START=MONDAY NOVEMBER 21ST, 2005 15.59.58
MIN=03
MTH=11

or the following output (korn shell):
EXT_START=MONDAY NOVEMBER 21ST, 2005 15.59.58
END_YR=05
END_DAY=21
MTH=11
END_HR=16
MIN=03
EXT_ENDED=MONDAY NOVEMBER 21ST, 2005 16.03.27

Hope This Helps, PH.
Want to get great answers to your Tek-Tips questions? Have a look at FAQ219-2884 or FAQ181-2886

 

[Annihilannic]

How about:

awk -F= ' { print "export " $0; print "echo " $0 } ' /tmp/variadates.dat > /tmp/exportem
. /tmp/exportem

Annihilannic.

 

[p5wizard]

Christi, the set -a provides for automatic exporting of variables while being set... PHV's solution should work.

from ksh manpage
-a allexport all new variable are created with export attribute


HTH,

p5wizard