I'm guessing the file is tab-separated? This should replace the fields you wanted all with the same serial, part, and tech...
Code:
#!/bin/bash
# Assume input for 'read' is tab-seperated
IFS=$'\t'
while read -a ARRAY
do
# Print and skip comment lines
if [[ "${ARRAY[0]:0:2}" == "//" ]]
then
echo "${ARRAY[*]}"
continue
fi
# Modify different fields based on the type given
if [[ "${ARRAY[1]}" == "H" ]]
then
ARRAY[7]="USA075WB"
ARRAY[3]="W8738625Z5V"
elif [[ "${ARRAY[1]}" == "D" ]]
then
ARRAY[3]="922-9592"
fi
# Write the entire array back out, still tab-seperated
echo "${ARRAY[*]}"
done < file.in > file.out
Hi There
I have this file that I would like to add entries to, however, there is a "}" as the last line that I need to keep. Basically i would like to know how I can write a script that will add new lines at the second to last line position (ie always add new line above the close bracket)
... (17 Replies)
Hi,
I need to insert two new lines in a file:
The file:
".....
......
ULIMIT_MAX_FILES="ulimit -S -n `ulimit -H -n`"
....
....
"
I need to add the lines:
LD_LIBRARY_PATH='$LD_LIBRARY_PATH:$APACHE_HOME/modules'
DOWNLOADMODULE_CONF_PATHNAME='$APACHE_HOME/conf/DWLModule.cfg'
right... (2 Replies)
1. The problem statement, all variables and given/known data:
Display from a csv file, birthdays that occur today. If there are no birthdays today, the next one in the year.
2. Relevant commands, code, scripts, algorithms:
The csv file is ordered from older to younger (ie. the most recent... (8 Replies)
I'm trying to use sed to insert data at a specific column, let's say my data looks like this:
0553 1828
0552 1829
0550 1829
0549 1830
0548 1831
what I want is this:
timein 0553 timeout 1828
timein 0552 timeout 1829
timein 0550 timeout 1829
timein 0549 timeout 1830
timein 0548... (5 Replies)
Hi,
I have one file, say file 1, that has data like below where 19900107 is the date,
19900107 12 144 129 0.7380047
19900108 12 168 129 0.3149017
19900109 12 192 129 3.2766666E-02
... (3 Replies)
Hi Fellows,
I have been struggling to fix an issue in csv records to compose sql statements and have been really losing sleep over it. Here is the problem:
I have csv files in the following pipe-delimited format:
Column1|Column2|Column3|Column4|NEWLINE
Address Type|some descriptive... (4 Replies)
In Perl. ***edited question below***
Hey all, I am teaching myself some simple CSV file manipulation and have become a little stuck. Say I have the following layout in the CSV file:
age,name,locationIs it possible to INSERT data into the CSV into the correct age order. For example, if I had... (1 Reply)
Dear all,
i am having text file like below
surya
rama
ranga
laxman
rajesh
reddy
i want add string (OK) before a text from line 3 to 5
the result will be
surya
rama
OK ranga
OK laxman
OK rajesh
reddy (1 Reply)
Hi all i would appreciate your help...
I am looking for a set of unix commands which i can use to
1) ingest a csv file with a known format
2) validate the filename
3) validate the data/datatypes
4) Insert into an oracle db
Can you help get me started?
yogz888 (1 Reply)
Hi Folks -
How would I go about inserting a chunk of lines (3) into a specific portion of a file?
The background is I have a script (non shell) that it executed daily, however on Sundays, I uncomment a section of code so that piece can be run as well.
So I was hoping to write a piece of... (9 Replies)
Discussion started by: SIMMS7400
9 Replies
LEARN ABOUT DEBIAN
devel::refcount
Devel::Refcount(3pm) User Contributed Perl Documentation Devel::Refcount(3pm)NAME
"Devel::Refcount" - obtain the REFCNT value of a referent
SYNOPSIS
use Devel::Refcount qw( refcount );
my $anon = [];
print "Anon ARRAY $anon has " . refcount($anon) . " reference
";
my $otherref = $anon;
print "Anon ARRAY $anon now has " . refcount($anon) . " references
";
DESCRIPTION
This module provides a single function which obtains the reference count of the object being pointed to by the passed reference value.
FUNCTIONS
$count = refcount($ref)
Returns the reference count of the object being pointed to by $ref.
COMPARISON WITH SvREFCNT
This function differs from "Devel::Peek::SvREFCNT" in that SvREFCNT() gives the reference count of the SV object itself that it is passed,
whereas refcount() gives the count of the object being pointed to. This allows it to give the count of any referent (i.e. ARRAY, HASH,
CODE, GLOB and Regexp types) as well.
Consider the following example program:
use Devel::Peek qw( SvREFCNT );
use Devel::Refcount qw( refcount );
sub printcount
{
my $name = shift;
printf "%30s has SvREFCNT=%d, refcount=%d
",
$name, SvREFCNT($_[0]), refcount($_[0]);
}
my $var = [];
printcount 'Initially, $var', $var;
my $othervar = $var;
printcount 'Before CODE ref, $var', $var;
printcount '$othervar', $othervar;
my $code = sub { undef $var };
printcount 'After CODE ref, $var', $var;
printcount '$othervar', $othervar;
This produces the output
Initially, $var has SvREFCNT=1, refcount=1
Before CODE ref, $var has SvREFCNT=1, refcount=2
$othervar has SvREFCNT=1, refcount=2
After CODE ref, $var has SvREFCNT=2, refcount=2
$othervar has SvREFCNT=1, refcount=2
Here, we see that SvREFCNT() counts the number of references to the SV object passed in as the scalar value - the $var or $othervar
respectively, whereas refcount() counts the number of reference values that point to the referent object - the anonymous ARRAY in this
case.
Before the CODE reference is constructed, both $var and $othervar have SvREFCNT() of 1, as they exist only in the current lexical pad. The
anonymous ARRAY has a refcount() of 2, because both $var and $othervar store a reference to it.
After the CODE reference is constructed, the $var variable now has an SvREFCNT() of 2, because it also appears in the lexical pad for the
new anonymous CODE block.
PURE-PERL FALLBACK
An XS implementation of this function is provided, and is used by default. If the XS library cannot be loaded, a fallback implementation in
pure perl using the "B" module is used instead. This will behave identically, but is much slower.
Rate pp xs
pp 225985/s -- -66%
xs 669570/s 196% --
SEE ALSO
o Test::Refcount - assert reference counts on objects
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2011-11-15 Devel::Refcount(3pm)