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Add date(1).

This commit is contained in:
Jonas 'Sortie' Termansen 2013-05-15 20:29:49 +02:00
parent 2c164844f2
commit 82ffdb5ca8
3 changed files with 45 additions and 0 deletions

1
utils/.gitignore vendored
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@ -6,6 +6,7 @@ clear
colormake
column
cp
date
echo
editor
find

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@ -22,6 +22,7 @@ clear \
colormake \
column \
cp \
date \
echo \
editor \
find \

43
utils/date.cpp Normal file
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@ -0,0 +1,43 @@
/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2013.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option)
any later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
You should have received a copy of the GNU General Public License along with
this program. If not, see <http://www.gnu.org/licenses/>.
date.cpp
Print or set system date and time.
*******************************************************************************/
#include <errno.h>
#include <error.h>
#include <stdio.h>
#include <stdint.h>
#include <time.h>
int main(/*int argc, char* argv[]*/)
{
time_t current_time = time(NULL);
struct tm tm;
if ( !localtime_r(&current_time, &tm) )
error(1, errno, "time(%ji)", (intmax_t) current_time);
const size_t BUFFER_SIZE = 256;
char buffer[BUFFER_SIZE];
strftime(buffer, BUFFER_SIZE, "%a %b %d %H:%M:%S %Y", &tm);
printf("%s\n", buffer);
return 0;
}