Adding a List of Times Post: 302981280

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Top Forums Shell Programming and Scripting Adding a List of Times Post 302981280 by drl on Friday 9th of September 2016 08:42:02 AM

09-09-2016

Registered User

Hi.

The dateutils suite contains a code that can add date/time durations: dadd. However, the format of the durations needs to be not in a form like 1:51:59, but rather 1h51m59s. That can be done with a little pipeline, and then presented to dadd, like so:

Code:

#!/usr/bin/env bash

# @(#) s1       Demonstrate addition of a list of times, dateutils.dadd

# Utility functions: print-as-echo, print-line-with-visual-space, debug.
# export PATH="/usr/local/bin:/usr/bin:/bin"
LC_ALL=C ; LANG=C ; export LC_ALL LANG
pe() { for _i;do printf "%s" "$_i";done; printf "\n"; }
pl() { pe;pe "-----" ;pe "$*"; }
em() { pe "$*" >&2 ; }
db() { ( printf " db, ";for _i;do printf "%s" "$_i";done;printf "\n" ) >&2 ; }
db() { : ; }
C=$HOME/bin/context && [ -f $C ] && $C dateutils.dadd

list="1:11:59 0:13:58 2:06:57 1:38:56 1:36:55 0:06:54 0:31:53 0:33:52 0:38:51 0:44:50"

pl " Input data list:"
pe "$list"

pl " Input list modified:"
v1=$( echo "$list" |
tr ' ' '\n' |
sed 's/:/h/;s/:/m/;s/$/s/' |
tr '\n' ' ')
echo "$v1"

pl " Results:"
dateutils.dadd -f "%T" 00:00:00 $v1 

exit 0

producing:

Code:

$ ./s1

Environment: LC_ALL = C, LANG = C
(Versions displayed with local utility "version")
OS, ker|rel, machine: Linux, 3.16.0-4-amd64, x86_64
Distribution        : Debian 8.4 (jessie) 
bash GNU bash 4.3.30
dateutils.dadd dadd 0.3.1

-----
 Input data list:
1:11:59 0:13:58 2:06:57 1:38:56 1:36:55 0:06:54 0:31:53 0:33:52 0:38:51 0:44:50

-----
 Input list modified:
1h11m59s 0h13m58s 2h06m57s 1h38m56s 1h36m55s 0h06m54s 0h31m53s 0h33m52s 0h38m51s 0h44m50s 

-----
 Results:
09:25:05

The dateutils suite can be found at dateutils, and in repositories for ArchLinux, Debian, Fedora, FreeBSD, Gentoo, NetBSD, OpenSuSE, OS, Slackware, Ubuntu

Best wishes ... cheers, drl

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LEARN ABOUT LINUX

column

COLUMN(1)						    BSD General Commands Manual 						 COLUMN(1)

NAME

     column -- columnate lists

SYNOPSIS

     column [-ntx] [-c columns] [-s sep] [file ...]

DESCRIPTION

     The column utility formats its input into multiple columns.  Rows are filled before columns.  Input is taken from file operands, or, by
     default, from the standard input.	Empty lines are ignored.

     The options are as follows:

     -c      Output is formatted for a display columns wide.

     -s      Specify a set of characters to be used to delimit columns for the -t option.

     -t      Determine the number of columns the input contains and create a table.  Columns are delimited with whitespace, by default, or with
	     the characters supplied using the -s option.  Useful for pretty-printing displays.

     -x      Fill columns before filling rows.

     -n      By default, the column command will merge multiple adjacent delimiters into a single delimiter when using the -t option; this option
	     disables that behavior. This option is a Debian GNU/Linux extension.

ENVIRONMENT

     The COLUMNS, LANG, LC_ALL and LC_CTYPE environment variables affect the execution of column as described in environ(7).

EXIT STATUS

     The column utility exits 0 on success, and >0 if an error occurs.

EXAMPLES

	   (printf "PERM LINKS OWNER GROUP SIZE MONTH DAY " ; 
	   printf "HH:MM/YEAR NAME
" ; 
	   ls -l | sed 1d) | column -t

SEE ALSO

     colrm(1), ls(1), paste(1), sort(1)

HISTORY

     The column command appeared in 4.3BSD-Reno.

BUGS

     Input lines are limited to LINE_MAX (2048) bytes in length.

BSD
								   July 29, 2004							       BSD

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