jybaek

#!/bin/sh

echo "================="
echo "\$@ section"
echo "================="
for param in "$@"
do
	echo $param,
done

jybaek

#include <execinfo.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

#include <signal.h>
/* sig ==> signal number */
void calltrace(int sig)
{
    int j, nptrs;

jybaek

<?php
// 출처 : https://blog.whitehatsec.com/magic-hashes/
if (hash('md5','240610708',false) == '0') {
  print "Matched.\n";
}
if ('0e462097431906509019562988736854' == '0') {
  print "Matched.\n";
}
?>

jybaek

#!/bin/sh

AA="My name is oops"
BB="name"
    
if [[ "$AA" == *"name"* ]];then
    echo "1st find it"
fi  
    
if [[ "$AA" =~ "name" ]];then

jybaek

cur=$(date +%m) # Need not be described

next6=$(printf %02d $(echo $(($cur+6))%12 | bc))
# 1. $(($cur+6)) is same 'expr' command. result is 7
# 2. echo 7%12 | bc  result '7' (remainder)
# 3. printf %02d => 01, 02, 03 ... 
# 4. $next6 => current month + 6
# 5. My mistake, if $next6 is 0 => change 1  (if [ $next6 == 0 ];then next6=1;fi)
# 6. END

jybaek

#!/bin/sh

DEPTH=1

if [ "$1" = "-h" ] || [ "$1" = "--help" ] || [ "$1" = "help" ] || [ "$1" = "h" ] ;then
    cat <<EOF

    ======================================================
    .du usage : .du {check directory maxdepth} (default 1)
    ======================================================

jybaek

static void printf_msg(const char *fmt, ...)
{
    if (fmt == NULL)
        return;

    va_list ap;
#define CMD_SIZE    512
    char tmp_buf[CMD_SIZE];
    char cmd[CMD_SIZE+128];

jybaek

<?php
/* FIXME. change strBusNumber !! */
$url = "http://bus.go.kr/xmlRequest/getStationByUid.jsp?strBusNumber=23248";
$ref_url = "";
$data = array();

function curl($url, $ref_url, $data)
{
	$ch = curl_init();

jybaek

#include <stdio.h>
#include <pthread.h>
#include <stdlib.h>     /* for exit() */
#include <semaphore.h>  /* for sem_xxxx() */

sem_t semp;
int val;

static void *wait_fun(void *arg)
{

jybaek

<?php
$url = "http://www.gbis.go.kr/gbis2014/schBusAPI.action";
function curl($data)
{
    global $url;
    //global $post;
    //global $data;
    //global $ref_url;
    
    $ch = curl_init();