dualbus

import java.io.BufferedReader;
import java.io.FileReader;
import java.util.Arrays;
import java.io.FileNotFoundException;
import java.io.IOException;

public class A {
    public static int solution(int N) {
        int[] seen;
        int i;

dualbus

#!/bin/bash

IFS= read -rd '' index_filter <<\Command
git ls-files -s | \
 awk '
  BEGIN { FS="\t" }

  $2 ~ /(^|\/)-i$/          {next}
  $2 ~ /Makefile$/          {next}
  $2 ~ /[#~]$/              {next}

dualbus

#!/bin/bash

shopt -s extdebug extglob

k0ud3() {
 local cmd=$1
 case $cmd in
  +([[:digit:]])@([*+/-])+([[:digit:]])):;;
  *)! :;;
 esac && eval echo "$(($cmd))"

dualbus

#!/bin/bash

: <<\eof
Behavior of shells when IFS='\'

The case when IFS='\' is tricky for the following situations:
- read with -r
- read without -r
- a parameter expansion, unquoted, that contains the backslash

dualbus

#!/bin/bash

save=$(bind -p; bind -X)
function clean-up {
    bind -r '\C-i'
    bind -f /dev/stdin <<< "$save"
}
trap 'clean-up' RETURN

function write-options {

dualbus

#include <stdlib.h>
#include <sys/time.h>
#include <signal.h>

void on_sigalrm(int sig) {
    return;
}

int main(int argc, char *argv[]) {
    float wait;

dualbus

#!/bin/bash
stty=$(stty -g)
trap 'stty "$stty"' EXIT

stty raw
IFS= read -rs -N1 a
while read -t0; do
  IFS= read -rs -N1 b
  a+=$b
done

dualbus

KERNEL/DIRS.A86:;    Copyright Work of Caldera, Inc. All Rights Reserved.
KERNEL/DIRS.A86:;    THIS WORK IS A COPYRIGHT WORK AND CONTAINS CONFIDENTIAL,
KERNEL/CDEVIO.A86:;    Copyright Work of Caldera, Inc. All Rights Reserved.
KERNEL/CDEVIO.A86:;    THIS WORK IS A COPYRIGHT WORK AND CONTAINS CONFIDENTIAL,
KERNEL/DRIVER.EQU:;    Copyright Work of Caldera, Inc. All Rights Reserved.
KERNEL/DRIVER.EQU:;    THIS WORK IS A COPYRIGHT WORK AND CONTAINS CONFIDENTIAL,
KERNEL/FDOS.A86:;    Copyright Work of Caldera, Inc. All Rights Reserved.
KERNEL/FDOS.A86:;    THIS WORK IS A COPYRIGHT WORK AND CONTAINS CONFIDENTIAL,
KERNEL/NETWORK.A86:;    Copyright Work of Caldera, Inc. All Rights Reserved.
KERNEL/NETWORK.A86:;    THIS WORK IS A COPYRIGHT WORK AND CONTAINS CONFIDENTIAL,

dualbus

#!/bin/bash

for shell in zsh ksh mksh dash bash /bin/bash 'busybox sh'; do
echo "$shell":
$shell <<'eof'
set -x
PATH=
echo "PATH=$PATH"
ls
eof

dualbus

zsh:
+zsh:4> command -v xyz
xyz
+zsh:5> unset xyz
+zsh:6> command -v xyz
xyz
+zsh:8> PATH='' 
+zsh:9> command -v xyz
xyz
+zsh:10> PATH=: