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How to get 1 word from 1 file and print to another file?

 
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# 1  
Old 08-06-2013
How to get 1 word from 1 file and print to another file?
Hey
I have 2 scripts, first one with this line:

Code:
ssh -Nf -i id_logs -o StrictHostKeyChecking=no -o ServerAliveInterval=60 -o ServerAliveCountMax=5 -R 30002:127.0.0.1:22 user@hostname

the second script is almost the same:
Code:
ssh -Nf -i id_logs -o StrictHostKeyChecking=no -o ServerAliveInterval=60 -o ServerAliveCountMax=5 -R __PORT__:127.0.0.1:22 user@hostname

I need to copy the port (30002) from the first file and replace it with the word __PORT__ in the second file

What is the best way to do it ?


Thanks!
Last edited by Scott; 08-06-2013 at 12:52 PM.. Reason: Please use code tags
# 2  
Old 08-06-2013
Please use code tags as required by forum rules!

Try
Code:
awk     'NR==FNR        {for (i=1; i<=NF; i++) {if ($i=="-R") {K=$(i+1); break}}; next}
                        {for (i=1; i<=NF; i++) {if ($i=="-R") {$(i+1)=K; break}}; print}
        ' file1 file2

or
Code:
awk     'NR==FNR        {for (i=1; i<=NF; i++) {if ($i=="-R") {K=$(i+1); break}}; next}
                        {sub (/_PORT_[^ \t]*/, K); print}
        ' file1 file2
ssh -Nf -i id_logs -o StrictHostKeyChecking=no -o ServerAliveInterval=60 -o ServerAliveCountMax=5 -R 30002:127.0.0.1:22 user@hostname

# 3  
Old 08-06-2013
Sorry for not using code tags, still new here

I tried running both of them but its not replacing 30002 with the __PORT__

any idea maybe ?
# 4  
Old 08-06-2013
Not sure I understand. You want to keep the _PORT_ and get rid of the 30002? so the result for the first file should be ...._PORT_.... as well as in the second file?
# 5  
Old 08-06-2013
No
I want to replace the __PORT__ of the first file
with 30002 from the second file

so both files will have the same port (30002)
# 6  
Old 08-06-2013
So make file1 the file with the 30002 and file2 the one with the _PORT_ in it. The script will read and keep the 30002 from file1 and overwrite _PORT_ in file2 with that value.
# 7  
Old 08-06-2013
I did try both scripts
but the port in the second file (__PORT__) is not being replaced to "30002"

file1 is the file with 30002
file2 is the file with __PORT__
 
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