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Need to add a line of data to already existing file in Unix.. Need to add a line of data to already existing file in Unix..
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  #1  
Old 01-20-2006
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Join Date: Jan 2006
Posts: 19
Need to add a line of data to already existing file in Unix..
Hello..

I have a text file with 100 lines of data.
I need to add 1 line of data to that already existing file at the first line( beginning of the file) , so that the already existing 100 lines will start from 2 nd line.Now the file will have 101 lines of data.

Help me on how to add the line of data ??

--Charan..
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  #2  
Old 01-20-2006
Registered User
  

Join Date: Dec 2005
Location: India
Posts: 218
Hi,

I am a newbee as well,

I think u can do it in followig ways,

1) open the file in VI and add the first line at the top
2) put the new line into another file say file2 and then

do
cat file2 exsistingfile > newfile

newfile is your output

grp please correct me if i m wrong

bye
Gaurav
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  #3  
Old 01-20-2006
Technorati Master
  

Join Date: Mar 2005
Location: Large scale systems...
Posts: 2,610
Code:
echo "1i\nthis is the line that u wanted to insert \n.\nwq" | ex -s filename
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  #4  
Old 01-20-2006
zazzybob's Avatar
Registered Geek
  

Join Date: Dec 2003
Location: Melbourne, Australia
Posts: 2,100
with sed...
Code:
sed '1 i\
new first line' file > newfile && mv newfile file
with perl (edit file in place)...
Code:
perl -p -i -e '$_ = "new first line\n$_" if ( $. == 1 );' file
Cheers
ZB
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  #5  
Old 01-21-2006
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Join Date: Jan 2006
Posts: 19
Madhan,

When i use

echo "1i\nGROUP_NAME,JOB_NAME,STATUS,PROCESS_GROUP,JOB_START,JOB_END \n.\nwq" | ex -s abc.txt

where abc.txt contains only
Hello
Testing
Insert

I am getting this..

dumb: Unknown terminal type
ksh: 19464 Segmentation Fault


Is that a major error..If so, How to overcome ??
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