install.sh

#!/bin/bash
#
# Author:   Bert Van Vreckem <bert.vanvreckem@gmail.com>
#
# Install selected scripts in the user's ~/bin directory by creating symbolic
# links to the actual scripts. The links will have their extension removed.
#
# Thes scripts should be stored in a subdirectory src/. If you want a script to
# be installed, just make it executable, otherwise it will be skipped.
#

# installation destination directory
dst_dir=${HOME}/bin

# directory where this script is located (should contain
# subdirectory src/ containing the actual scripts
script_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

# script directory
src_dir=${script_dir}/src

# scripts to be installed. If you want a script to be installed, make it
# executable
to_install=$(find ${src_dir} -type f \( -executable -and ! -iname ".*" \) -printf '%f\n')


for s in $(echo ${to_install}); do
  # determine path to source and destination files
  source_file=${src_dir}/${s}
  destination_file=${dst_dir}/${s%.*}  # remove extension from link

  if [[ ! -f "${source_file}" ]]; then

    # Source script not found
    echo "Skipping nonexistent ${source_file}" >&2

  else

    # If the destination directory already contains a script
    # that is not a link, it should not be overwritten
    if [[ -f "${destination_file}" && ! -h "${destination_file}" ]]; then
      echo "Skipping ${destination_file}: already exists, is a regular file" >&2
    fi

    # create the link
    ln -vsf ${source_file} ${destination_file}

  fi
done