Add tailing-newline-removal script

2023-12-23 20:14:19 -07:00 · 2023-12-23 20:14:19 -07:00 · ad005f402b
parent d9e00d5e63
commit ad005f402b
1 changed files with 16 additions and 0 deletions
--- a/bin/remove_last_line.sh
+++ b/bin/remove_last_line.sh
@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+if [[ ! -f "$1" ]]; then
+  cat <<HELP
+Removes the tailing new line character in a file
+$(basename $0) <file>
+HELP
+
+  exit 1
+fi
+
+declare -r tmp="$(mktemp)"
+
+if [[ "$(tail -c 1 "$1" | wc -l)" = 1 ]]; then
+  head -c -1 "$1" > "$tmp"
+  mv -f "$tmp" "$1"
+fi