string-pad - pad strings to a fixed width — fish-shell 4.3.2 documentation

# string-pad - pad strings to a fixed width

## Synopsis

    string pad [-r | --right] [-C | --center] [(-c | --char) CHAR] [(-w | --width) INTEGER]
               [STRING ...]

## Description

`string pad` extends each STRING to the given visible width by adding CHAR to the left. That means the width of all visible characters added together, excluding escape sequences and accounting for `fish_emoji_width` and `fish_ambiguous_width`. It is the amount of columns in a terminal the STRING occupies.

The escape sequences reflect what fish knows about, and how it computes its output. Your terminal might support more escapes, or not support escape sequences that fish knows about.

If -C or --center is given, add the padding to before and after the string. If it is impossible to perfectly center the result (because the required amount of padding is an odd number), extra padding will be added to the left, unless --right is also given.

If -r or --right is given, add the padding after a string.

If -c or --char is given, pad with CHAR instead of whitespace.

The output is padded to the maximum width of all input strings. If -w or --width is given, use at least that.

## Examples

    >_ string pad -w 10 abc abcdef
           abc
        abcdef

    >_ string pad --right --char=🐟 "fish are pretty" "rich. "
    fish are pretty
    rich.  🐟🐟🐟🐟

    >_ string pad -w$COLUMNS (date)
    # Prints the current time on the right edge of the screen.

## See Also

- The printf command can do simple padding, for example `printf %10s\n` works like `string pad -w10`.

- string length with the `--visible` option can be used to show what fish thinks the width is.