fm.awk

File manager written in awk

Preview

Browsing

• cd on exit: cd $(command fm.awk)
• last path: export LASTPATH="$HOME/.cache/lastpath"; cd $(cat -u $LASTPATH) && $TERMINAL -e fm.awk

Key bindings

NUMBERS:
    [num] - move cursor to entry [num]
    [num]+G - Go to page [num]

NAVIGATION:
    k/↑ - up                      j/↓ - down
    l/→ - right                   h/← - left
    Ctrl-f - Half Page Down       Ctrl-u - Half Page Up
    n/PageDown - PageDown         p/PageUp - PageUp
    g/Home - first page           G/End - last page
    H - first entry               L - last entry
    M - middle entry

MODES:
    / - search
    : - commandline mode
        commandline mode special function:
            {}: represent selected files/directories
            tab completion on path: start with ' /', use tab to complete on that path
            tab completion on cmd: completion based on command history
                ><: enter selecting mode for directory (choose ./ to confirm destination)

SELECTION:
    ␣ - bulk (de-)selection       S - bulk (de-)selection all
    s - show selected

PREVIEW:
    v - toggle preview
    > - more directory ratio      < - less directory ratio

MISC:
    r - refresh                   q - quit
    - - previous directory        ! - spawn shell
    . - toggle hidden             ? - show keybinds
    o - local history             O - all history

Actions

• [x] Bulk selection
• [x] Bulk selection all
• [x] Directory / File preview
• [x] Command line mode

Try to use those file manipulation function with cmd mode

Configuration

edit fm.awk, modify the first configuration section:

    ###################
    #  Configuration  #
    ###################

    OPENER = ( ENVIRON["FMAWK_OPENER"] == "" ? ( ENVIRON["OSTYPE"] ~ /darwin.*/ ? "open" : "xdg-open" ) : ENVIRON["FMAWK_OPENER"] )
    LASTPATH = ( ENVIRON["LASTPATH"] == "" ? ( ENVIRON["HOME"] "/.cache/lastpath" ) : ENVIRON["LASTPATH"] )
    HISTORY = ( ENVIRON["HISTORY"] == "" ? ( ENVIRON["HOME"] "/.cache/history" ) : ENVIRON["HISTORY"] )
    CMDHIST = ( ENVIRON["CMDHIST"] == "" ? ( ENVIRON["HOME"] "/.cache/cmdhist" ) : ENVIRON["CMDHIST"] )
    CACHE = ( ENVIRON["CACHE"] == "" ? ( ENVIRON["HOME"] "/.cache/imagecache" ) : ENVIRON["CACHE"] )
    FIFO_UEBERZUG = ENVIRON["FIFO_UEBERZUG"]
    FMAWK_PREVIEWER = ENVIRON["FMAWK_PREVIEWER"]
    PREVIEW = 0
    HIDDEN = 0
    RATIO = 0.35
    HIST_MAX = 5000
    SUBSEP = ","

• OPENER is the default file opener. External opener script can be set by environmental variable FMAWK_OPENER.
• LASTPATH is path which fm.awk were last time.
• HISTORY is the history for directory visited.
• CMDHIST is the command line history, which only the unique command will be left.
• CACHE is the cache file path for image file generated by preview.
• FIFO_UEBERZUG and FMAWK_PREVIEWER will be automatically set by shell wrapper fmawk.
• PREVIEW is indicator for review or not, boolean.
• RATIO is the ratio for directory / preview.
• HIST_MAX is the maximum number of HISTORY.

cmd mode

• all auto completed command can be edited using left/right arrow and backspace.
• :cd /path/to/destination
  • can be relative: :cd ../../ goes to parents two tiers
• :cmd on each selected item.
  • e.g., After selection, :chmod +x to give execution permission on selected entries.
• :cmd {} destination to replace {} with each selected item and execute the whole command.
  • e.g., After selection, :mv {} ~ will move selected item to $HOME directory.
• File manipulation is done by this process:
  • Select file/dir => go to destination by browsing => type :cmd {} ./ to execute cmd on selected file to destination
  • e.g. select files, go to destination and type :mv {} ./.
• cmd can be shell alias (bash and zsh confirmed. fish not sure).
• tab completion on :cd and search (/)
• tab completion on path:
  • press tab or shift-tab for path completion => press Enter to confirm current completion, and go the either of the following two path:
    • => press tab / shift-tab for next-level path completion.
    • => press Enter again to confirm current path and exit cmd mode.
• tab completion on command line mode based on command line history.
• left / right arrow to move cursor; up / down arrow to access command line history.

scripts

scripts stores the shell scripts that serve some purposes that I think is better to be done externally. They are

• decompressall: go through all compression files in current directory and decompress all of them.
• renameall: rename all files and directories in current directory. The list of all files/directories will open in default text editor using xdg-open files/directories will be renamed line by line.

TODO

• [x] Image preview (start using ueberzug)
• [x] Make preview script be independent
• [x] Able to redraw by SIGWINCH.
• [x] Tab completion on path
• [ ] Make cmd bottom line can be scrollable horizontally even when the string is over the dimension
• [x] Eliminate action menu by implementing all of those in cmd mode