Initial commit

README.md

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+# edname: EDitor reNAME
+
+Allows you to rename files using your favorite $EDITOR.
+
+## Usage
+
+```
+edname: rename files using $EDITOR.
+
+usage:
+
+ edname <dir or files>
+  to rename
+
+ edname --undo
+  to undo the last rename (as well as possible)
+```
+
+## Operation
+
+1. Index files into .original.edname and .rename.edname (one per line)
+2. Call $EDITOR on .rename.edname
+3. Rename each file from .original.edname to the name specified on its corresponding line in .rename.edname
+
+## Safety
+
+Files are **never** overwritten. If a conflict exists, that file will be left as-is.
+
+edname also allows undoing the last rename using `edname --undo`.

edname.sh

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+#!/bin/sh
+
+###
+# help
+###
+
+if [ "$1" = "--help" ] || [ "$1" = "-h" ] ; then
+  echo 'edname: rename files using $EDITOR.'
+  echo
+  echo 'usage:'
+  echo
+  echo ' edname <dir or files>'
+  echo '  to rename'
+  echo
+  echo ' edname --undo'
+  echo '  to undo the last rename (as well as possible)'
+  echo
+  exit 1
+fi
+
+###
+# functions
+###
+
+execute_rename() {
+  command="$1"
+
+  lines="$(cat .original.edname | wc -l)"
+  IFS=$'\n' read -rd '' -a src_lines < .original.edname
+  IFS=$'\n' read -rd '' -a dest_lines < .rename.edname
+
+  for line in $(seq 1 "$lines") ; do
+    src="${src_lines[$line]}"
+    dest="${dest_lines[$line]}"
+    if [ "$src" != "$dest" ] ; then
+      eval "$command"
+    fi
+  done
+}
+
+###
+# main
+###
+
+if [ "$1" = "--undo" ] ; then
+  echo "undoing rename"
+  execute_rename "echo \"\\\"\$dest\\\" -> \\\"\$src\\\"\""
+  execute_rename 'mv "$dest" "$src"'
+  echo "done"
+  exit
+fi
+
+echo "-- DO NOT delete lines. This will cause files to be renamed erratically. --" > .original.edname
+ls "$@" >> .original.edname
+cp .{original,rename}.edname
+
+echo opening editor.
+
+$EDITOR .rename.edname || exit $?
+
+echo
+
+echo "*** about to do the following rename:"
+echo
+execute_rename "echo \"\\\"\$src\\\" -> \\\"\$dest\\\"\""
+echo
+echo "***"
+
+echo
+echo "note: possible collisions will be ignored and Not renamed."
+echo -n "confirm rename? (enter/^C) "
+
+read
+
+execute_rename 'mv --no-clobber "$src" "$dest"'
+
+echo
+echo "you may undo this rename using 'edname --undo'. thank you."