致力于此:一个简单的回显随机键盘字符的游戏;然后让用户尽快匹配该字符(这尚未实现(显然)但这是目标)并保持正确匹配"的运行总数.
Working on this: A simple game to echo a random keyboard character; then have the user match that character as fast as possible (this is not implemented yet (obviously) but that's the goal) and keep a running total of the "correct matches."
#!/bin/bash score=0 while true; do clear echo "$score" character=$(</dev/urandom tr -dc '1234567890{}[]`~\/><!@#$%^&*()_+=-abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ' | head -c1) echo "$character" read -rsn1 input if [ "$character" = "$input"]; then echo "[+]" score ++ sleep 1 else echo "wrong!" score=0 sleep 1 fi done直接,我的问题是:为什么我得到
Directly, my question is: Why am I getting
[: missing `]'错误.我已经尝试了
if [ "$character" = "$input" ]; then和第二个问题:我将如何正确地问我的下一个问题:给定一个长随机字符串,如何分解"该字符串,使其在每个字符之间都有一个空格?我没有经验/词汇来描述这个操作.
and second question: How would I properly ask my next question which is: given a long random string, how would one "explode" that string such that it has a space in between every character? I do not have the experience/lexicon to describe this operation.
非常感谢!
推荐答案] 前必须有一个空格,像这样:
There must be a space before the ] like this:
if [ "$character" = "$input" ]; then此外,要将 bash 置于算术模式,请替换此行:
Also, to put bash in arithmetic mode, replace this line:
score ++与:
((score ++))更多推荐
逐个字符地遍历随机字符串?
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