RudiC's suggestion is close, but misses on a couple of points. Since no pathname operands are given to awk, all of the filenames printed by awk will be an empty string. And, if there are x field separators on a line, there are x+1 fields.
The -print0 find primary and the -0 option to xargs are not defined by the standards, so they might not be available on your implementation.
A portable way to do what I believe was requested is:
Some implementations of awk have a nextfile statement (like next, but while next restarts processing on the next line, nextfile restarts processing on the first line of the next file). If your awk has this non-standard extension, the following will be much more efficient for long input files:
-------------------------------
Note that the comment I made about Rudi's proposal not printing pathnames is totally bogus. The xargs utility will add the pathname operand to awk as it invokes awk.
Last edited by Don Cragun; 12-02-2012 at 07:42 AM..
Hey Guyz I have a requirement something like this..
a part of file name, date of modification of that file and a text is entered as input.
like
Date : 080206 (MMDDYY format.)
filename : hotel_rates
text : Jim
now the file hotel_rates.ZZZ.123 (creation date is Aug 02 2006) should be... (10 Replies)
Hi
My files is like
a|test|s|
b|test2 | n|
c|ggg|v|
i want to count the no of lines which is ending with "|" ...
Please let me know how can it be done.
Thanks,
Arun (4 Replies)
Hi,
I have to grep a word 'XYZ' from 900 files ( from 2007 till date), take its count month wise. The output should display month, count , word 'XYZ' .
I tried searching the forum for solution but could find any.
I would apprieciate if any one can help me asap ....
Many Thanks:) (12 Replies)
Hi,
I am trying to grep a particular string from the files of 2 different servers without copying and calculate the total count of its occurence on both files.
File structure is same on both servers and for reference as follows:
27-Aug-2010... (4 Replies)
Hi all,
I need to get the latest file. I have found this command "ls -lrt" that is great but not recursive.
Can anyone help?
Thanx by advance. (7 Replies)
Tricky one:
I want to do several things all at once to blow away a directory (rm -rf <dir>)
1) I want to find all files recursively that have a specific file extension (.ver) for example.
2) Then in that file, I want to grep for an expression ( "sp2" ) for example.
3) Then I want to... (1 Reply)
Is there a way to use the find command to recursively scan directories for files greater than 1Gb in size and print out the directory path and file name only?
Thanks in advance. (6 Replies)
Hi,
Need some help...
I want to execute sequence commands, like below
test1.sh
test2.sh
...etc
test1.sh file will generate log file, we need to search for 'complete' string on test1.sh file, once that condition success and then it should go to test2.sh file, each .sh scripts will take... (5 Replies)
I have a file example.txt as follows :SomeTextGoesHere
$$TODAY_DT=20140818
$$TODAY_DT=20140818
$$TODAY_DT=20140818I need to automatically update the date (20140818) in the above file, by getting the new date as argument, using a shell script.
(It would even be better if I could pass... (5 Replies)
I have a large dataset with following structure;
C 0001 Carbon
D SAR001 methane
D SAR002 ethane
D SAR003 propane
D SAR004 butane
D SAR005 pentane
C 0002 Hydrogen
C 0003 Nitrogen
C 0004 Oxygen
D SAR011 ozone
D SAR012 super oxide
C 0005 Sulphur
D SAR013... (3 Replies)
Discussion started by: Syeda Sumayya
3 Replies
LEARN ABOUT MINIX
join
JOIN(1) General Commands Manual JOIN(1)NAME
join - relational database operator
SYNOPSIS
join [-an] [-e s] [-o list] [-tc] file1 file2
DESCRIPTION
Join forms, on the standard output, a join of the two relations specified by the lines of file1 and file2. If file1 is `-', the standard
input is used.
File1 and file2 must be sorted in increasing ASCII collating sequence on the fields on which they are to be joined, normally the first in
each line.
There is one line in the output for each pair of lines in file1 and file2 that have identical join fields. The output line normally con-
sists of the common field, then the rest of the line from file1, then the rest of the line from file2.
Fields are normally separated by blank, tab or newline. In this case, multiple separators count as one, and leading separators are dis-
carded.
These options are recognized:
-an In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.
-e s Replace empty output fields by string s.
-o list
Each output line comprises the fields specified in list, each element of which has the form n.m, where n is a file number and m is a
field number.
-tc Use character c as a separator (tab character). Every appearance of c in a line is significant.
SEE ALSO sort(1), comm(1), awk(1).
BUGS
With default field separation, the collating sequence is that of sort -b; with -t, the sequence is that of a plain sort.
The conventions of join, sort, comm, uniq, look and awk(1) are wildly incongruous.
7th Edition April 29, 1985 JOIN(1)