Being an awk-ignorant i might be mistaken, but isn't the following much easier as a reformatting filter:
For instance, to get the above alignment:
I hope this helps.
bakunin
Yes, IF...
all of the fields are always present (note that field 3 is empty in the 2nd line in the sample input),
there are no spaces in the middle of any of the fields (the above code would discard everything after the 1st space in the middle of the last field on each line; except on the 2nd line where the 3rd field would be changed from an empty string to bay and the 4th field would be changed from bay tree. to tree.),
you know the number of fields when you write the format string, and
you know the number of characters to appear in each field when you write the format string.
The code I suggested in post #6 will:
work with any standards conforming version of awk,
will determine the number of fixed width input fields and the number of characters in each field from the input parameter FIELDWIDTHS,
strip off leading and trailing spaces from each field (although stripping trailing spaces only matters on the last field).
Looking back at the code I suggested, it can be simplified somewhat keeping all of the features listed above, but I still think it provided a good starting point for a general solution to the given problem.
Hi,
I have a file 'imei_01.txt' having the following contents:
$ cat imei_01.txt
a123456
bbr22135
yet223
where I want to check whether the expression 'first single alphabet followed by 6 digits' is present in the file (here it is the first record 'a123456')
I am using the following... (5 Replies)
I already have accomplished this task using sed and arrays, but since I get the variable using awk, I figured I'd ask this question and maybe I can get a cleaner solution using strictly awk.. I just can't quite grasp it in awk.
Story: I'm automating the (re)configuration of network interfaces,... (3 Replies)
Dear all
I need a script for multiple find and replace in a single file.
For example input file is -
qwe wer ert rty tyu
asd sdf dgf dfg fgh
qwe wer det rtyyui
jhkj ert asd asd dfgd
now
qwe should be replace with aaaaaa
asd should be replace with bbbbbbbb
rty should be replace... (6 Replies)
How do you print out a single quote character in AWK? Using the escape character does not seem to work.
{printf "%1$s %2$s%3$s%2$s\n" , "INCLUDE", " \' ", "THIS" }
does not work. Any suggestions? (6 Replies)
Hi,
I have variable inside shell script - from_item.
from_item = 40.1'1/16
i have to first find out whether FROM_ITEM contains single quote(').
If yes, then that need to be replace with two quotes ('').
How to do it inside shell script? Please note that inside shell script........ (4 Replies)
Hi all,
Greetings,
I have the following scenario, The contents of main file are like :
Unix|||||forum|||||||||||||||is||||||the||best
so||||||be|||||on||||||||||||||||||||||||||||||||||||||||||||it
And i need the output in the following form:
Unix=forum=is=the=best
so=be=on=it
... (3 Replies)
Hi
Does anyone know how to set any character as the field separator with awk/nawk on a solaris 10 box. I have tried using /./ regex but this doesnt work either and im out of ideas.
thanks (7 Replies)
Hi Team,
i have 1st cloumn of data containing,
LAMSBA01-BA-COFF-YTD
LAMSBA01-BA-COFF-ITD
LAMSBA01-BA-AGGR-IND .
LAMSBA01-BA-CURR-COFF-BAL
i need to replace the "-" to "_" (underscore) using AWK .
please help me on this.
Thanks,
Baski (4 Replies)
Hi,
i want find the character '-' in a file from position 284-298, if it occurs i need to replace it with 'O ' for the position in the file. How to do that using SED command.
thanks in advance,
Sara (9 Replies)
Hi,
following Perl code i used for finding multiple strings and replace with single string.
code:
#!/usr/bin/perl
my @files = <*.txt>;
foreach $fileName (@files) {
print "$fileName\n";
my $searchStr = ',rdata\)' | ',,rdata\)' | ', ,rdata\)';
my $replaceStr =... (2 Replies)
Discussion started by: chettyravi
2 Replies
LEARN ABOUT MOJAVE
join
JOIN(1) BSD General Commands Manual JOIN(1)NAME
join -- relational database operator
SYNOPSIS
join [-a file_number | -v file_number] [-e string] [-o list] [-t char] [-1 field] [-2 field] file1 file2
DESCRIPTION
The join utility performs an ``equality join'' on the specified files and writes the result to the standard output. The ``join field'' is
the field in each file by which the files are compared. The first field in each line is used by default. There is one line in the output
for each pair of lines in file1 and file2 which have identical join fields. Each output line consists of the join field, the remaining
fields from file1 and then the remaining fields from file2.
The default field separators are tab and space characters. In this case, multiple tabs and spaces count as a single field separator, and
leading tabs and spaces are ignored. The default output field separator is a single space character.
Many of the options use file and field numbers. Both file numbers and field numbers are 1 based, i.e., the first file on the command line is
file number 1 and the first field is field number 1. The following options are available:
-a file_number
In addition to the default output, produce a line for each unpairable line in file file_number.
-e string
Replace empty output fields with string.
-o list
The -o option specifies the fields that will be output from each file for each line with matching join fields. Each element of list
has the either the form 'file_number.field', where file_number is a file number and field is a field number, or the form '0' (zero),
representing the join field. The elements of list must be either comma (',') or whitespace separated. (The latter requires quoting
to protect it from the shell, or, a simpler approach is to use multiple -o options.)
-t char
Use character char as a field delimiter for both input and output. Every occurrence of char in a line is significant.
-v file_number
Do not display the default output, but display a line for each unpairable line in file file_number. The options -v 1 and -v 2 may be
specified at the same time.
-1 field
Join on the field'th field of file 1.
-2 field
Join on the field'th field of file 2.
When the default field delimiter characters are used, the files to be joined should be ordered in the collating sequence of sort(1), using
the -b option, on the fields on which they are to be joined, otherwise join may not report all field matches. When the field delimiter char-
acters are specified by the -t option, the collating sequence should be the same as sort(1) without the -b option.
If one of the arguments file1 or file2 is ``-'', the standard input is used.
EXIT STATUS
The join utility exits 0 on success, and >0 if an error occurs.
COMPATIBILITY
For compatibility with historic versions of join, the following options are available:
-a In addition to the default output, produce a line for each unpairable line in both file 1 and file 2.
-j1 field
Join on the field'th field of file 1.
-j2 field
Join on the field'th field of file 2.
-j field
Join on the field'th field of both file 1 and file 2.
-o list ...
Historical implementations of join permitted multiple arguments to the -o option. These arguments were of the form
'file_number.field_number' as described for the current -o option. This has obvious difficulties in the presence of files named
'1.2'.
These options are available only so historic shell scripts do not require modification. They should not be used in new code.
LEGACY DESCRIPTION
The -e option causes a specified string to be substituted into empty fields, even if they are in the middle of a line. In legacy mode, the
substitution only takes place at the end of a line.
Only documented options are allowed. In legacy mode, some obsolete options are re-written into current options.
For more information about legacy mode, see compat(5).
SEE ALSO awk(1), comm(1), paste(1), sort(1), uniq(1), compat(5)STANDARDS
The join command conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
BSD July 5, 2004 BSD