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Full Discussion: Compare 2 files, awk maybe?
Top Forums Shell Programming and Scripting Compare 2 files, awk maybe? Post 302902114 by phaethon on Sunday 18th of May 2014 06:59:31 PM
Old 05-18-2014
Compare 2 files, awk maybe?
I have 2 files,
file1:
Code:
alfa     numbers numbers 
vita     numbers numbers
gama   numbers numbers
delta    numbers numbers
epsilon numbers numbers
zita      numbers numbers
...

file2:
Code:
'zita'    keepnumbers keepnumbers keepnumbers
'gama' keepnumbers keepnumbers keepnumbers
'misc'  keepnumbers keepnumbers keepnumbers
'alfa'    keepnumbers keepnumbers keepnumbers
...

and I want to
print the lines of file2
of which the first word (in the first column)
matches with the first word of file 1 (in the first column), BUT keep the order of first file.
The output should look like
Code:
'alfa'    keepnumbers keepnumbers keepnumbers
'gama' keepnumbers keepnumbers keepnumbers
'zita'    keepnumbers keepnumbers keepnumbers

I have already tried with
Code:
awk 'NR==FNR{a[$1]++;next}a[$1]' file1 file2 > file3

but the order in file3 is like file2.
Moreover awk hits in the quote symbol ' is there a way to ignore it and read only the name inside quotes?
Thanks in advance for the help and time
Last edited by Don Cragun; 05-18-2014 at 09:06 PM.. Reason: Add CODE tags.
 

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LEARN ABOUT OSX

fsirand

fsirand(1M)						  System Administration Commands					       fsirand(1M)

NAME

       fsirand - install random inode generation numbers

SYNOPSIS

       fsirand [-p] special

DESCRIPTION

       fsirand installs random inode generation numbers on all the inodes on device special, and also installs a file system ID in the superblock.
       This helps increase the security of file systems exported by NFS.

       fsirand must be used only on an unmounted file system that has been checked with fsck(1M) The only exception is that it can be used on  the
       root file system in single-user mode, if the system is immediately re-booted afterwards.

OPTIONS

       -p	Print out the generation numbers for all the inodes, but do not change the generation numbers.

USAGE

       See largefile(5) for the description of the behavior of fsirand when encountering files greater than or equal to 2 Gbyte ( 2**31 bytes).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       fsck(1M), attributes(5), largefile(5)

SunOS 5.10							    16 Sep 1996 						       fsirand(1M)
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