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Adding lines and columns to a file


 
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# 1  
Old 07-22-2009
Adding lines and columns to a file

Hi everybody,

I've got two simples file1 like:

Code:
aaa aaa aaa
bbb bbb bbb
ccc ccc ccc

and file2 like:
Code:
111 111 111
222 222 222
333 333 333

I need to:
1) add a line say "new line" as the first line of the file
2)add a column from file2 (say column3) to file1; the new column should be the new 4th column for example

I know this question has been asked before and I did find some solutions, but none of them are working for me.

This is what I've got so far:
1) add a new line code:
Code:
sed '1 i\new line' file1 > newfile

Problem: it adds "new line" after each line of my file1, when I need it to be one line only (the first one)

2) add a column code:
Code:
awk '{$4= " awk'{print $3}file2' "}1'

Problem: it also adds filed3 of file2 as the first column of every second line

Any ideas would be greately appretiated!

Many thanks in advance!!!

Last edited by vgersh99; 07-22-2009 at 01:13 PM.. Reason: code tags, PLEASE!
# 2  
Old 07-22-2009
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---------- Post updated at 11:29 AM ---------- Previous update was at 11:14 AM ----------

Code:
nawk '
  FNR==NR {f2[FNR]=$3;next}
  FNR==1 { print "here is my new line"}
  $NF = $NF OFS f2[FNR]' file2 file1

# 3  
Old 07-22-2009
Many thanks and I apologize for not using code correctly.
Unfotunatelly, nawk is not working. It says: nawk: command not found
# 4  
Old 07-22-2009
then use either awk or gawk if you have one.
# 5  
Old 07-22-2009
Thanks once again!
I've try to run it with wak, but nothing happens. All that's printed is >
Sorry, this may be very basis, but I'm new to UNIX

---------- Post updated at 10:50 AM ---------- Previous update was at 10:46 AM ----------

may be we could simplify the task:
How can I add just another column to an existing file1?
Please
# 6  
Old 07-22-2009
Quote:
Originally Posted by zajtat
Thanks once again!
I've try to run it with wak, but nothing happens. All that's printed is >
Sorry, this may be very basis, but I'm new to UNIX

---------- Post updated at 10:50 AM ---------- Previous update was at 10:46 AM ----------

may be we could simplify the task:
How can I add just another column to an existing file1?
Please
just type what's been posted - assuming your file1 and file2 do exist in the current working directory:
Code:
awk '
  FNR==NR {f2[FNR]=$3;next}
  FNR==1 { print "here is my new line"}' file2 file1
  $NF = $NF OFS f2[FNR]' file2 file1

# 7  
Old 07-22-2009
I'm really sorry to be a pain, but it still doesn't work.
The first two lines of your script retun just "here is my new line" and it doesn't really allow to print the last line. In the end I've amanged to type in the last line as well, but then the old problem happens: it expects more writing >
Sorry...
 

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