A utility, dadd, in package dateutils can do the arithmetic and reformatting. It seems to be in many repositories ( e.g. arch, FreeBSD, Slackware, Mac OS X "brew" etc.), and source is available (github). I compiled it for an earlier version of Debian.
A single command suffices to process all conforming dates:
producing:
Sample input and output are best to supply with the original question, otherwise responders need to create them, which may or may not match what is really needed.
So I have a csv file where the 3rd field is a date string in the format yyyy-mm-dd. I need to change it to mm/dd/yyyy. So each line in the csv file looks like:
StringData,StringData,2009-02-17,12.345,StringData
StringData,StringData,2009-02-16,65.789,StringData
Any idea how I can keep... (5 Replies)
Hello!
I have a textfile that look like this:
"83d1:46:2b";"20091008190000";"Rögle BK - Skellefteå";"Swedish"
"d4c:46:21";"20091008190000";"Södertälje - Brynäs";"Swedish"
"d4b:46:2";"20091008190000";"HV 71 - Färjestad";"Swedish"
"838:46:b";"20091010160000";"Skellefteå - HV 71";"Swedish"... (2 Replies)
I have a CSV file with a date format like this;
11/19/2012 17:37:00,1.372,121.6
11/19/2012 17:38:00,0.743,121.6
Want to change the time stamp to seconds after 1970 so I can get the data in rrdtool. For anyone interested, this is data from a TED5000 unit and is Kwatts and volts.
Needs to... (3 Replies)
Hi,
i have a flat file namely temp.txt with this data below
ID|name|contact_date
101|Kay|2013-12-26
102|let|2013-12-26
I need to modify the date data in the flat file into MM/DD/YYYY HH24:MI:SS format
let me know the code for this.
Thank you! (5 Replies)
I have a csv file formatted like this:
2014-08-21 18:06:26,A,B,12345,123,C,1232,26/08/14 18:07and I'm trying to change it to MM/DD/YYYY HH:MM for both occurances.
I have got this:
awk -F, 'NR <=1 {print;next}{"date +%d/%m/%Y\" \"%H:%m -d\""$1 "\""| getline dte;$1=dte}1' OFS="," test.csvThis... (6 Replies)
Hi All,
I'm new to forum good to hear all.
I stuck in converting date format in csv file using unix
csv file contains as below
,750,0000000000000000GCJR, ,06/22/2016 14:48:44
I want to convert into as below
,750,0000000000000000GCJR, ,06/22/2016 02:48:44 PM
Please reply asap..... (22 Replies)
Hi all,
I have a file as below,
i would like the change the format of the time from "11/7/2019 20:12" to "2019-07-11 20:12:00" in the last coloumn.
any awk solution on this.
Input:
2,0,695016,1961612,497212,5800804,0,0,161,33,7605,12226,23,10,66,0,0,34,11/7/2019 20:10... (4 Replies)
Discussion started by: Raghuram717
4 Replies
LEARN ABOUT REDHAT
csv
csv(n) CSV processing csv(n)
NAME
csv - Procedures to handle CSV data.
SYNOPSIS
package require Tcl 8.3
package require csv ?0.3?
::csv::join values {sepChar ,}
::csv::joinlist values {sepChar ,}
::csv::read2matrix chan m {sepChar ,} {expand none}
::csv::read2queue chan q {sepChar ,}
::csv::report cmd matrix ?chan?
::csv::split line {sepChar ,}
::csv::split2matrix m line {sepChar ,} {expand none}
::csv::split2queue q line {sepChar ,}
::csv::writematrix m chan {sepChar ,}
::csv::writequeue q chan {sepChar ,}
DESCRIPTION
The csv package provides commands to manipulate information in CSV FORMAT (CSV = Comma Separated Values).
COMMANDS
The following commands are available:
::csv::join values {sepChar ,}
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 ",".
::csv::joinlist values {sepChar ,}
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 ",". Each element of the outer list 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 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 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 line {sepChar ,}
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 ",".
::csv::split2matrix 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 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 ,}
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 ,}
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
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 lan-
guages it may be ";" however, although this is not important for this case (The functions provided here allow any separator character).
If a value contains itself the separator ",", then it (the value) is put between "".
If a value contains ", it is replaced by "".
EXAMPLE
The record
123,"123,521.2","Mary says ""Hello, I am Mary"""
is parsed as follows:
a) 123
b) 123,521.2
c) Mary says "Hello, I am Mary"
SEE ALSO
matrix, queue
KEYWORDS
csv, matrix, queue, package, tcllib
csv 0.3 csv(n)