Using sed to replace a line

[alowance]

I need to add an entry into a file, right before the last line. The last line is the same on most of thefile, so I thoutht I coul serach it out and eith insert my new line or deleter this line and replace it with two line (my new line and the original line I deleted))I have tried the -i command but am not having luck. Any help would be appreciated. Thanks.

 

[PHV]

Try something like this:
echo "\$i\nYourTextHere\n.\nw\nq" | ed -s yourfile.txt

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

 

[aigles]

With sed :
[tt]
sed '$iLine to be inserted' file.txt > tmp.txt
mv tmp.txt file.txt
[/tt]
The disadvantage of 'sed' is that should be used an intermediate file

Jean Pierre.

 

[CaKiwi]

Or with awk

NR>1{print a}
{a=$0}
END {
print "your text"
print a
}


CaKiwi