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  #1  
Old 07-17-2007
Registered User
  

Join Date: Jul 2007
Posts: 99
Finding a character in first line of a record
HI,

I am pretty new to Unix scripting. I will need help in Finding a character in first line of a file or a set of files.

The scenario is as follows:

Lets consider a set of files which is having a character "ID"(without quotes) in the first line of each file.I need to find this character in the first line of each file and if the result of this is positive then i have to say echo"ID found in file" otherwise echo "ID not found in the file"

Can anyone help me with this. I will be very Gratefull

Thanks,
Sandy
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  #2  
Old 07-17-2007
DukeNuke2's Avatar
Soulman
  

Join Date: Jul 2006
Location: Germany, Berlin
Posts: 1,466
is it homework? if so, have a look at the rules!
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  #3  
Old 07-17-2007
Registered User
  

Join Date: Jul 2007
Posts: 99
NO!!!! this is not a home work.......
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  #4  
Old 07-17-2007
Registered User
  

Join Date: Jul 2007
Posts: 99
I have tried searching this through google from past three days.....but i am not able to find any answers on this.......can anyone help me out ...

Thanks,
Sandy
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  #5  
Old 07-17-2007
vino's Avatar
Supporter (in vino veritas)
  

Join Date: Feb 2005
Location: Bangalore, India
Posts: 2,683
Perhaps this.

Code:
while read filename
do
  line=$(head -1 $filename)
  if [[ $line = *ID* ]] ; then
    echo "Found ID in $filename"
  else
    echo "No ID in $filename"
  fi;
done < list_of_filenames.txt
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  #6  
Old 07-17-2007
Registered User
  

Join Date: Sep 2006
Posts: 1,580
Code:
awk 'NR==1{ if ( $0 ~ /ID/) print }' "file"
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  #7  
Old 07-18-2007
Registered User
  

Join Date: Jul 2007
Posts: 99
Thanks so much.....u guys are awesome.......i hope that i am also as good as u guys and help someone in this forum in the comming months.

Thanks and regards,
Sandy
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