UNIX for Advanced & Expert Users

Hello Friends

I am new to this forum and this is my first post.

I have to write a script in which i have to read data from a configuration ( .cfg) file. And also i have to execute/call some already written scripts from this script.

Can you people plpease help me on this regards.

Thanks in Advance.

Manish

It really depends what are you trying to achive, which language will be used, what is the underlying OS, etc....
example :
I have one file called "config.cfg" and I read it like this :

Code:

if __name__ == "__main__":
# some stuff
  try:
    configFile = open('config.cfg')
    config.readfp(configFile)
  except IOError:
    print "Config.cfg file not found."
    exit()

This example is Python, reading from file on most languages is similar.

Hello Friend

Thanks for reply

I am using Unix/Solaris plateform

config file format is like this
########################
config.cfg
servername =
filepath =

student name1
#student attributes
age =
class=

student name2
age =
class =

####################

i have to use unix shell scripting.
first i have to read that server and filepath..

after that i have to access these students and their corresponding attributes.

so now can you please help me further.

Thanks in advance.

Manish

Not sure whether this would be of help !

config_file

servername=abc
fielpath=/anotherdir

script

Code:

servername=`awk -F"=" '/^servername/ { print $2 }' config_file`

if you can get the config file like this..you may use below script.

config file format is like this
########################
config.cfg
servername =
filepath =


#student attributes
student name1 age =
student name1 class=

#student name2
student name2 age =
student name2 class =

###############################


while read line < configfile
do
`echo $line | awk -F"=" '{print $1}'`=`echo $line | awk -F"=" '{print $2}'`

# This would assign servername = < The value you specified > & so for all..
done

Now use those varibales in your script after the loop...

How you read the data depends on how the .cfg file is written. I use .cfg files written as shell scripts which I just source, e.g.:

Code:

. ${0##*/}.cfg

If the file is not a valid shell script, you will have to read it line by line:

Code:

while IFS= read -r line
do
  : do whatever is necessary to interpret the line here
done < "$configfilename"