bash:在窗口的右端回显一些东西(右对齐)

Question

我正在寻找生成成功/失败消息,这些消息在bash中是正确的.一个例子是apache2在执行时产生的内容:sudo /etc/init.d/apache2 reload等等

在上面的例子中,apache2产生非常好的和简洁的[OK]或者[fail]右对齐的消息.

此外,我们很想知道如何让文字变红,以防万一我们要发[fail]短信.

Answer 1

#!/bin/bash

RED=$(tput setaf 1)
GREEN=$(tput setaf 2)
NORMAL=$(tput sgr0)

col=80 # change this to whatever column you want the output to start at

if <some condition here>; then
  printf '%s%*s%s' "$GREEN" $col "[OK]" "$NORMAL"
else
  printf '%s%*s%s' "$RED" $col "[FAIL]" "$NORMAL"
fi