ivanzoid

#
# Place this code to your .profile, .bashrc, .bash_profile or whatever
#

program_exists () {
	type "$1" &> /dev/null ;
}


if program_exists go; then

ivanzoid

#
# Without arguments:
#
#!/bin/bash -ex

main()
{
    # …
}

ivanzoid

//usr/bin/env go run $0 -- "$@"; exit $?

//
// Use this script to maintain a set of github gists as files.
//
// Usage:
//  - install 'gist' program (https://github.com/defunkt/gist)
//  - make sure you have Go (https://golang.org) installed
//  - make a folder somewhere where you want to store your gists.
//  - place gist-update.go (https://gist.github.com/ivanzoid/611177bbd3f5cb0604810f07080757b3#file-gist-update-go) to this folder

ivanzoid

# Bash compare strings

if [ "$x" = "valid" ]; then
  echo "x has the value 'valid'"
fi

if [ "$x" != "valid" ]; then
  echo "x has the value 'valid'"
fi

ivanzoid

program_exists () {
	type "$1" &> /dev/null ;
}

if ! program_exists foo; then
    echo "Please install foo"
    exit 2
fi

ivanzoid

#!/bin/bash -ex

usage()
{
	local PROG_NAME=`basename $0`
	echo "Usage: $PROG_NAME params"
}

main()
{

ivanzoid

#
# Without arguments:
#
#!/bin/bash -ex

main()
{
    # …
}

ivanzoid

if [ -f "$file" ]; then
    echo "$file found."
fi

if [ ! -f "$file"]; then
	  echo "$file not found."
fi

ivanzoid

package main

import (
	"fmt"
	"os"
)

func dlog(format string, args ...interface{}) {
	fmt.Fprintf(os.Stderr, format, args...)
	fmt.Fprintf(os.Stderr, "\n")

ivanzoid

package main

import (
	"fmt"
	"strings"
	"strconv"
	"errors"
)

func determineImageDimensions(fileName string) (width, height uint64, err error) {