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플래그에 대한 설명을 한 열에 넣도록 도움말 섹션의 형식을 지정하세요.

tag-icon • tag-icon bash shell-script scripting text-formatting
플래그에 대한 설명을 한 열에 넣도록 도움말 섹션의 형식을 지정하세요.

다음과 같은 도움말 섹션을 만들었습니다.

-m         This is a very very very very very very very very very very
very very very very very very very very very very long sentence

가지고 싶다

-m         This is a very very very very very very very very very very
           very very very very very very very very very very long 
           sentence.

2개의 열을 원한다고 지정하시겠습니까?

답변1

다음은 도움말 관련 항목을 한 번에 하나씩 인쇄하는 데 사용할 수 있는 기능입니다. -m질문의 예와 긴 도움말 문자열을 사용했습니다 . 이 함수는 첫 번째 열의 너비를 10으로 하드코딩한 다음 두 번째 열의 남은 공간을 계산합니다.

#!/bin/bash

function printhelp() (
  c1width=10
  cols=$(tput cols)
  c2width=$((cols - c1width - 1))
  readarray -t lines < <(printf '%s' "$2" | fmt -w $c2width)
  for((line=0; line < ${#lines[*]}; line++))
  do
    if [ $line -eq 0 ]
    then
      col1="$1"
    else
      col1=" "
    fi
    printf "%-${c1width}s %-${c2width}s\n" "$col1" "${lines[line]}"
  done
)

optf='-m'
optd='This is a very very very very very very very very very very very very very very very very very very very very long sentence'
printhelp "$optf" "$optd"

50열 화면의 출력 예:

-m         This is a very very very very very
           very very very very very very very
           very very very very very very very
           very long sentence

80열 화면에서:

-m         This is a very very very very very very very very very very very
           very very very very very very very very very long sentence

130열 화면에서:

-m         This is a very very very very very very very very very very very very very very very very very very very very
           long sentence

150열 화면에서:

-m         This is a very very very very very very very very very very very very very very very very very very very very long sentence

답변2

이것이 꼭 필요한 것은 아니지만 매개변수 이름과 설명이 같은 줄에 있지 않은 경우 간단한 해결 방법입니다. fmt두 번째 줄의 들여쓰기를 유지합니다 .

$ FOO="-m\n\tThis is a very very very very very very very very very very very very very very very very very very very very long sentence"

$ echo -e $FOO
-m
    This is a very very very very very very very very very very very very very very very very very very very very long sentence

$ echo -e $FOO | fmt 
-m
    This is a very very very very very very very very very very very
    very very very very very very very very very long sentence

답변3

이 솔루션은 다음에도 효과적입니다.zsh

FLAG="-m VARIABLE"
DESCRIPTION="This is a very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very long sentence"
DISTANCE_FLAG=3

WIDTH1=$(echo "$FLAG" | wc -c ) 
WIDTH2=$(($(tput cols)-$DISTANCE_FLAG -$WIDTH1 ))

paste <(echo $FLAG ) <(echo $DESCRIPTION | fold -sw $(( $(tput cols) -     $DISTANCE_FLAG -$WIDTH1     )) )| pr -t -e$(($DISTANCE_FLAG+$WIDTH1))

관련 정보