Need to add a line of data to already existing file in Unix..

Shell Programming and Scripting
1

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..

2

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

3 
echo "1i\nthis is the line that u wanted to insert \n.\nwq" | ex -s filename
4

with sed...

sed '1 i\
new first line' file > newfile && mv newfile file

with perl (edit file in place)...

perl -p -i -e '$_ = "new first line\n$_" if ( $. == 1 );' file

Cheers
ZB

5

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 ??