Insert lines at specific location in file

hcclnoodles · #1 (**permalink**) 03-28-2007

Hi There

I have this file that I would like to add entries to, however, there is a "}" as the last line that I need to keep. Basically i would like to know how I can write a script that will add new lines at the second to last line position (ie always add new line above the close bracket)

Now, I know how to do this by grep'ing tailing, appending etc using temporary files to put stuff in, but I wanted to do it in one simple command rather than 5 or 6 commands with other temp files involved that I have to remove afterwards (it looks very messy)

Is there any way to do this simply ????

Code:

stuff
stuff
stuff
<NEED TO ENTER LINE HERE>
}

radoulov · #2 (**permalink**) 03-28-2007

Code:

ed file<<!
-1a
my new line
.
w
q
!

dennis.jacob · #3 (**permalink**) 03-28-2007

Try this...

Code:

sed '$ i this is  line you want to add' filename

Output:

u142115@linux2alm:~/aps/aps4/product/den> cat sc.txt
stuff
stuff
stuff
}
u142115@linux2alm:~/aps/aps4/product/den> sed '$ i this is the line' sc.txt
stuff
stuff
stuff
this is the line
}

hcclnoodles · #4 (**permalink**) 03-28-2007

Quote:

Originally Posted by jacoden

Try this...

Code:

sed '$ i this is  line you want to add' filename

Output:

u142115@linux2alm:~/aps/aps4/product/den> cat sc.txt
stuff
stuff
stuff
}
u142115@linux2alm:~/aps/aps4/product/den> sed '$ i this is the line' sc.txt
stuff
stuff
stuff
this is the line
}

when I run this I get

Code:

[my.server] # sed '$ i this is the line' testfile
sed: command garbled: $ i this is the line
[my.server] #

dennis.jacob · #5 (**permalink**) 03-28-2007

Give an attempt on this... All works well here...

Code:

x="this is the line"
sed '$ i '"$x"'' file

hcclnoodles · #6 (**permalink**) 03-28-2007

must be a different version of sed unfortunatley, cos it doesnt work for me

radoulov · #7 (**permalink**) 03-28-2007

Quote:

Originally Posted by hcclnoodles

when I run this I get

Code:

[my.server] # sed '$ i this is the line' testfile
sed: command garbled: $ i this is the line
[my.server] #

For older versions of sed:

Code:

sed '$i\
this is  line you want to add' file

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