A simple script to copy a file with a path matching a pattern and then optionally replace that pattern with a different string in the file name

copy_and_rename.awk

#!/usr/bin/awk -f

#  A simple script to copy a file with a path matching a pattern
#  and then optionally replace that pattern with a different string
#  in the file name
#
#  Usage: ./cp_and_rename.awk -v subject=[foo] -v replacement=[bar] \
# -v dest_prefix=[baz]
#
# E.g.
# for an existing file
# awesome/foo.awk
#
# find . | ~/apps/bin/cp_and_rename.awk -v subject=foo -v replacement=bar \
# -v dest_prefix=baz -v dry_run=true
#
# the effect is
#
# mkdir -p baz/awesome
# cp -r awesome/foo.awk baz/awesome/bar.awk
#
# Add -v dry_run=true to make the script only output the commands without
# actually running them
#
# All the arguments are optional (with different effects)
#
# If you want to just check some file path strings manually to see the effects
# you can just call the script
#
# ~/apps/bin/cp_and_rename.awk -v subject=foo -v replacement=bar \
# -v dest_prefix=baz -v dry_run=true
#
# and then enter the string with STDIN
#
# @author 2013 Octavian Neamtu

$0 ~ subject {
  subject_file_path=$0
  subs_file_path=$0
  sub(subject, replacement, subs_file_path)

  if (dest_prefix != "") {
    dest_file_path=sprintf("%s/%s", dest_prefix, subs_file_path);
  } else {
    dest_file_path=subs_file_path;
  }

  match(dest_file_path, "^.*/")
  dest_dir=substr(dest_file_path, 1, RLENGTH-1)

  mkdir_cmd=sprintf("mkdir -p %s", dest_dir)
  if (dry_run == "") {
    system(mkdir_cmd)
    close(mkdir_cmd)
  }
  print(mkdir_cmd)

  cp_cmd=sprintf("cp -r %s %s", subject_file_path, dest_file_path)
  if (dry_run == "") {
    system(cp_cmd)
    close(cp_cmd)
  }
  print(cp_cmd)
}