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Developer tools · #vim
Learn how Vim's persistent undo feature saves edit history across sessions, how to enable it, and what trade‑offs to consider.
Learn how to diagnose and resolve the Vim 'Swap File Exists' (E325) warning, including how to recover unsaved data and safely remove hidden .swp files.
Persistent undo in Vim lets you keep undo history across sessions. Enable it with <code>set undofile</code> and <code>set undodir</code>, verify with <code>:undolist</code>, and view the undo tree with a plugin. Learn trade‑offs, cleanup, and a practical example of recovering a lost line.
Learn how to use Vim marks to eliminate context loss in large files. This guide covers local (a-z) and global (A-Z) marks for precise navigation and session persistence.
Stop losing your place in large source files. Learn how to combine Vim's jumplist, marks, and change-list commands to navigate complex codebases without constant scrolling.
Goal Recover a file after a failed Vim upgrade without data loss. Constraints Swap files created by Vim 8 become stale or incompatible in Vim 9; Vim warns but does not auto‑clean. Uncertainty The documentation does not specify whether Vim should automatically delete or rename stale swap files on startup after an upgrade. Questions Should Vim automatically de
The goal is to confirm that the data recovered by Vim after a crash matches the edits intended by the user, while ensuring that the backup file created by the 'backup' option no longer contains the pre‑edit state. When 'backup' is enabled, Vim creates <file>~ before writing the new content, and a swap file ( <file>.swp ) holds the in‑memory chang