adding text 1

[BIS]

Hello again.....

Thought I better start a new thread. Using help from this forum I have managed to get to a file that looks something like this:

;45;45;258;457;256
;125;56;485;45;65

The final step is this. How would I add a specified text (for example 'pingpong') to the front of every line? The end result looking like this:

pingpong;45;45;258;457;256
pingpong;125;56;485;45;65

...please...

 

[KenCunningham]

Not too elegant, but:

for line in `cat filename`
do
echo pingpong$line >> newfile
done

Note that the ` are backticks not regular apostrophes. Cheers.

 

[mrn]

Try sed

Create a file called change.sed containing the following

#!/usr/bin/sed -f
s/^/pingpong/g

chmod 700 change.sed

then use

./change.sed < original.file > new.file

--
| Mike Nixon
| Unix Admin
|

http://www.instantflashshop.com

----------------------------

 

[vgersh99]

nawk -f a.awk a.txt

#-------------------------- a.awk
FNR == 1 {printf(&quot;%s&quot;, &quot;pingpong&quot}
$0 ~ &quot;^$&quot; {print;printf(&quot;%s&quot;, &quot;pingpong&quot;next}
{ printf(&quot;%s&quot;, $0); }
END { print}
vlad
+---------------------------+
|#include<disclaimer.h> |
+---------------------------+

 

[BIS]

vlad - that doesn't seem to work...

 

[vgersh99]

a bit easier:

nawk -v RS=&quot;&quot; -f a.awk a.txt

#---------------------- a.awk
{ printf &quot;pingpong&quot;; for (i=1; i<=NF; i++) printf(&quot;%s&quot;, $i); print &quot;&quot;}
vlad
+---------------------------+
|#include<disclaimer.h> |
+---------------------------+

 

[CaKiwi]

Or

nawk -f a.awk a.txt

#---------------------- a.awk
{print &quot;pingpong&quot; $0} CaKiwi

 

[vgersh99]

BIS,
what seems to be the problem?
vlad
+---------------------------+
|#include<disclaimer.h> |
+---------------------------+

 

[BIS]

sorry, my mistake - it does work...

last question, if I may.

I now have a file something like this:

bbbbbb
bbbbbb
bbbbbb
bbbbbb;45;45;45;45;
bbbbbb;45;45;45;45;
bbbbbb;45;45;45;45;

is there a way to remove the first 3 lines to end up with:
bbbbbb;45;45;45;45;
bbbbbb;45;45;45;45;
bbbbbb;45;45;45;45;


?

I can always use sed -e '1d' file three times but there must be a more elegant way...

 

[vgersh99]

if it's ALWAYS the first 3 lines:
sed '1,3d' file.txt

If it's anything else, you'll need to define the criteria a bit more precisely.
vlad
+---------------------------+
|#include<disclaimer.h> |
+---------------------------+

 

[BIS]

Yes its always the first three lines. many many thanks (again).

 

[BIS]

hmm, a new thing crept up on me. I am going to have to prepend yesterdays date. I can easily get this into a txt file. can I use this?

#---------------------- a.awk
{ printf &quot;cat yesterday&quot;; for (i=1; i<=NF; i++) printf(&quot;%s&quot;, $i); print &quot;&quot;}

where yesterday is the txt file?

I guess not. How does awk, nawk, or is it printf print the contents of a txt file?

 

[vgersh99]

Can you get it into a variable instead ? it would be cleaner.

nawk -v RS=&quot;&quot; -v yesterday=&quot;${myYesterdayVar}&quot; -f a.awk a.txt

#---------------------- a.awk
{ printf yesterday ; for (i=1; i<=NF; i++) printf(&quot;%s&quot;, $i); print &quot;&quot;} vlad
+---------------------------+
|#include<disclaimer.h> |
+---------------------------+

 

[BIS]

cooooool - you saved my day!

 

[mrn]

you could do

/^bbbbbb$/d

in sed --
| Mike Nixon
| Unix Admin
|

http://www.instantflashshop.com

----------------------------