10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Join and merge multiple files with duplicate key and fill void columns
Hi guys,
I have many files that I want to merge:
file1.csv:
1|abc
1|def
2|ghi
2|jkl
3|mno
3|pqr
file2.csv: (5 Replies)
Discussion started by: yjacknewton
5 Replies
2. Shell Programming and Scripting
Hi,
I am trying to join 2 csv files, to create a 3rd output file with the joined data.
Below is an example of my Input Data:
Input File 1
NAME, FAV_FOOD, FAV_DRINK, ID, GENDER
Bob, Fish, Coke, 1, M
Lisa, Rice, Water, 2, F
Jenny, Noodle, Tea, 3, F
Ken, Pizza, Coffee, 4, M
Lisa,... (7 Replies)
Discussion started by: RichZR
7 Replies
3. Shell Programming and Scripting
Hi,
I have a file pk.txt which has pk data in following format
TableName | PK
Employee | id
Contact|name,country
My Output should be
Employee | t1.id=s.id
Contact| t1.name=s.name AND t1.country=s.country
I started of like this:
for LIST in `cat pk.txt` do... (5 Replies)
Discussion started by: wahi80
5 Replies
4. UNIX for Dummies Questions & Answers
I have file input1.txt
11103|11|OTTAWA|City|AA|CAR|0|0|1|-1|0|8526|2014-09-07 23:00:14
11103|11|OTTAWA|City|BB|TRAIN|0|0|2|-2|6|6359|2014-09-07 23:00:14
11104|11|CANADA|City|CC|CAR|0|0|2|-2|0|5947|2014-09-07 23:00:14
11104|11|CANADA|City|DD|TRAIN|0|0|2|-2|1|4523|2014-09-07 23:00:14... (5 Replies)
Discussion started by: radius
5 Replies
5. Shell Programming and Scripting
I have two text files as shown below
cat file1.txt
Id leng sal mon
25671 34343 56565 5565
44888 56565 45554 6868
23343 23423 26226 6224
77765 88688 87464 6848
66776 23343 63463 4534
cat file2.txt
Id number
25671 34343
76767 34234
23343 23423
66776 23343 (4 Replies)
Discussion started by: halfafringe
4 Replies
6. Shell Programming and Scripting
Hi All,
I am trying to join to files based on one common column.
Cat File1
ID HID
Ab_1 23
Cd 45
df 22
Vv 33
Cat File2
ID pval
Ab_1 0.3
Cd 10
Vv 0.0444 (3 Replies)
Discussion started by: newpro
3 Replies
7. Shell Programming and Scripting
So I have 2 files:
File 1:
111,Mike,Stipe
222,Peter,Buck
333,Mike,Mills
File 2:
222,Mr,Bono
444,Mr,Edge
I want output to be below, where 222 records joined and all none joined records still in output
111,Mike,Stipe
222,Peter,Buck,Mr,Bono
333,Mike,Mills
444,Mr,Edge (4 Replies)
Discussion started by: stack
4 Replies
8. Shell Programming and Scripting
Hi All,
I have working (Perl) code to combine 2 input files into a single output file using the join function that works to a point, but has the following limitations:
1. I am restrained to 2 input files only.
2. Only the "matched" fields are written out to the "matched" output file and... (1 Reply)
Discussion started by: Katabatic
1 Replies
9. UNIX for Advanced & Expert Users
hi, i have
file 1:
======
0501000|X1
0502000|X2
0501231|X3
0981222|X4
0502000|X6
0503000|X7
0932322|X8
file 2:
=======
050
0501
0502
09
098 (1 Reply)
Discussion started by: magedfawzy
1 Replies
10. Shell Programming and Scripting
I'm new of UNIX shell scripting. I'm recently generating a excel report in UNIX(file with delimiter is fine). How should I make a script to do it?
1 file to join comes from output of one UNIX command, the second from another UNIX command, and third from a database query. The key columes of all... (7 Replies)
Discussion started by: bigsmile
7 Replies
csv(n) CSV processing csv(n)
__________________________________________________________________________________________________________________________________________________
NAME
csv - Procedures to handle CSV data.
SYNOPSIS
package require Tcl 8.3
package require csv ?0.7.1?
::csv::iscomplete data
::csv::join values {sepChar ,} {delChar "}
::csv::joinlist values {sepChar ,} {delChar "}
::csv::joinmatrix matrix {sepChar ,} {delChar "}
::csv::read2matrix ?-alternate? chan m {sepChar ,} {expand none}
::csv::read2queue ?-alternate? chan q {sepChar ,}
::csv::report cmd matrix ?chan?
::csv::split ?-alternate? line {sepChar ,} {delChar "}
::csv::split2matrix ?-alternate? m line {sepChar ,} {expand none}
::csv::split2queue ?-alternate? q line {sepChar ,}
::csv::writematrix m chan {sepChar ,} {delChar "}
::csv::writequeue q chan {sepChar ,} {delChar "}
_________________________________________________________________
DESCRIPTION
The csv package provides commands to manipulate information in CSV FORMAT (CSV = Comma Separated Values).
COMMANDS
The following commands are available:
::csv::iscomplete data
A predicate checking if the argument data is a complete csv record. The result is a boolean flag indicating the completeness of the
data. The result is true if the data is complete.
::csv::join values {sepChar ,} {delChar "}
Takes a list of values and returns a string in CSV format containing these values. The separator character can be defined by the
caller, but this is optional. The default is ",". The quoting character can be defined by the caller, but this is optional. The
default is '"'.
::csv::joinlist values {sepChar ,} {delChar "}
Takes a list of lists of values and returns a string in CSV format containing these values. The separator character can be defined
by the caller, but this is optional. The default is ",". The quoting character can be defined by the caller, but this is optional.
The default is '"'. Each element of the outer list is considered a record, these are separated by newlines in the result. The ele-
ments of each record are formatted as usual (via ::csv::join).
::csv::joinmatrix matrix {sepChar ,} {delChar "}
Takes a matrix object following the API specified for the struct::matrix package and returns a string in CSV format containing these
values. The separator character can be defined by the caller, but this is optional. The default is ",". The quoting character can be
defined by the caller, but this is optional. The default is '"'. Each row of the matrix is considered a record, these are separated
by newlines in the result. The elements of each record are formatted as usual (via ::csv::join).
::csv::read2matrix ?-alternate? chan m {sepChar ,} {expand none}
A wrapper around ::csv::split2matrix (see below) reading CSV-formatted lines from the specified channel (until EOF) and adding them
to the given matrix. For an explanation of the expand argument see ::csv::split2matrix.
::csv::read2queue ?-alternate? chan q {sepChar ,}
A wrapper around ::csv::split2queue (see below) reading CSV-formatted lines from the specified channel (until EOF) and adding them
to the given queue.
::csv::report cmd matrix ?chan?
A report command which can be used by the matrix methods format 2string and format 2chan. For the latter this command delegates the
work to ::csv::writematrix. cmd is expected to be either printmatrix or printmatrix2channel. The channel argument, chan, has to be
present for the latter and must not be present for the first.
::csv::split ?-alternate? line {sepChar ,} {delChar "}
converts a line in CSV format into a list of the values contained in the line. The character used to separate the values from each
other can be defined by the caller, via sepChar, but this is optional. The default is ",". The quoting character can be defined by
the caller, but this is optional. The default is '"'.
If the option -alternate is spcified a slightly different syntax is used to parse the input. This syntax is explained below, in the
section FORMAT.
::csv::split2matrix ?-alternate? m line {sepChar ,} {expand none}
The same as ::csv::split, but appends the resulting list as a new row to the matrix m, using the method add row. The expansion mode
specified via expand determines how the command handles a matrix with less columns than contained in line. The allowed modes are:
none This is the default mode. In this mode it is the responsibility of the caller to ensure that the matrix has enough columns to
contain the full line. If there are not enough columns the list of values is silently truncated at the end to fit.
empty In this mode the command expands an empty matrix to hold all columns of the specified line, but goes no further. The overall
effect is that the first of a series of lines determines the number of columns in the matrix and all following lines are
truncated to that size, as if mode none was set.
auto In this mode the command expands the matrix as needed to hold all columns contained in line. The overall effect is that after
adding a series of lines the matrix will have enough columns to hold all columns of the longest line encountered so far.
::csv::split2queue ?-alternate? q line {sepChar ,}
The same as ::csv::split, but appending the resulting list as a single item to the queue q, using the method put.
::csv::writematrix m chan {sepChar ,} {delChar "}
A wrapper around ::csv::join taking all rows in the matrix m and writing them CSV formatted into the channel chan.
::csv::writequeue q chan {sepChar ,} {delChar "}
A wrapper around ::csv::join taking all items in the queue q (assumes that they are lists) and writing them CSV formatted into the
channel chan.
FORMAT
The format of regular CSV files is specified as
[1] Each record of a csv file (comma-separated values, as exported e.g. by Excel) is a set of ASCII values separated by ",". For other
languages it may be ";" however, although this is not important for this case as the functions provided here allow any separator
character.
[2] If and only if a value contains itself the separator ",", then it (the value) has to be put between "". If the value does not con-
tain the separator character then quoting is optional.
[3] If a value contains the character ", that character is represented by "".
[4] The output string "" represents the value ". In other words, it is assumed that it was created through rule 3, and only this rule,
i.e. that the value was not quoted.
An alternate format definition mainly used by MS products specifies that the output string "" is an representatation of the empty string.
In other words, it is assumed that the output was generated out of the empty string by quoting it (i.e. rule 2), and not through rule 3.
This is the only difference between the regular and the alternate format.
The alternate format is activated through specification of the option -alternate to the various split commands.
EXAMPLE
Using the regular format the record
123,"123,521.2","Mary says ""Hello, I am Mary""",""
is parsed into the items
a) 123
b) 123,521.2
c) Mary says "Hello, I am Mary"
d) (the empty string)
Using the alternate format the result is
a) 123
b) 123,521.2
c) Mary says "Hello, I am Mary"
d) "
instead. As can be seen only item (d) is different, now a " instead of the empty string.
BUGS, IDEAS, FEEDBACK
This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category csv of
the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have for
either package and/or documentation.
SEE ALSO
matrix, queue
KEYWORDS
csv, matrix, package, queue, tcllib
COPYRIGHT
Copyright (c) 2002-2008 Andreas Kupries <andreas_kupries@users.sourceforge.net>
csv 0.7.1 csv(n)