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Full Discussion: Date reformatting
Top Forums UNIX for Dummies Questions & Answers Date reformatting Post 302537769 by figaro on Sunday 10th of July 2011 04:31:13 AM
Old 07-10-2011
Date reformatting
I currently have the following file containing sample values for a number of dates:
Code:
Loc1 04 Jan 2007 0.95 0.9532
Loc1 05 Jan 2007 0.95 0.9513
Loc1 06 Jan 2007 0.95 0.9535

This continues for all months of the year and spans across several years.

I am trying to reformat the dates so that they become mysql-friendly, ie to yyyy-mm-dd

Firstly, is there an easier way to translate the months than this?
Code:
sed -i '' -e 's/ Jan /-01-/' file.dat
sed -i '' -e 's/ Feb /-02-/' file.dat
sed -i '' -e 's/ Mar /-03-/' file.dat
sed -i '' -e 's/ Apr /-04-/' file.dat
sed -i '' -e 's/ May /-05-/' file.dat
sed -i '' -e 's/ Jun /-06-/' file.dat
sed -i '' -e 's/ Jul /-07-/' file.dat
sed -i '' -e 's/ Aug /-08-/' file.dat
sed -i '' -e 's/ Sep /-09-/' file.dat
sed -i '' -e 's/ Oct /-10-/' file.dat
sed -i '' -e 's/ Nov /-11-/' file.dat
sed -i '' -e 's/ Dec /-12-/' file.dat

Secondly, from there I reformat the dates from dd-mm-yyyy to yyyy-mm-dd as follows:
Code:
sed -i '' -e "s#\(..\) \(..\) \(....\)#\3-\2-\1#" file.dat

Perhaps all commands can be combined into one, preferably using sed or tr?

Thank you in advance
 

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LEARN ABOUT DEBIAN

g_principal

g_principal(1)					 GROMACS suite, VERSION 4.5.4-dev-20110404-bc5695c				    g_principal(1)

NAME

       g_principal - calculates axes of inertia for a group of atoms

       VERSION 4.5.4-dev-20110404-bc5695c

SYNOPSIS

       g_principal  -f	traj.xtc  -s topol.tpr -n index.ndx -a1 axis1.dat -a2 axis2.dat -a3 axis3.dat -om moi.dat -[no]h -[no]version -nice int -b
       time -e time -dt time -tu enum -[no]w -[no]foo

DESCRIPTION

	g_principal calculates the three principal axes of inertia for a group of atoms.

FILES

       -f traj.xtc Input
	Trajectory: xtc trr trj gro g96 pdb cpt

       -s topol.tpr Input
	Structure+mass(db): tpr tpb tpa gro g96 pdb

       -n index.ndx Input, Opt.
	Index file

       -a1 axis1.dat Output
	Generic data file

       -a2 axis2.dat Output
	Generic data file

       -a3 axis3.dat Output
	Generic data file

       -om moi.dat Output
	Generic data file

OTHER OPTIONS

       -[no]hno
	Print help info and quit

       -[no]versionno
	Print version info and quit

       -nice int 19
	Set the nicelevel

       -b time 0
	First frame (ps) to read from trajectory

       -e time 0
	Last frame (ps) to read from trajectory

       -dt time 0
	Only use frame when t MOD dt = first time (ps)

       -tu enum ps
	Time unit:  fs,  ps,  ns,  us,	ms or  s

       -[no]wno
	View output  .xvg,  .xpm,  .eps and  .pdb files

       -[no]foono
	Dummy option to avoid empty array

SEE ALSO

       gromacs(7)

       More information about GROMACS is available at <http://www.gromacs.org/>.

								  Mon 4 Apr 2011						    g_principal(1)
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