linux – Up Arrow的替代方案输入以运行上一个命令？

有时我必须连续多次运行命令,例如查看服务是否已启动,将手移离正常输入位置以反复按向上箭头和输入键变得乏味.有没有办法在没有Up Arrow和Enter键的情况下运行上一个命令,可能还有一个精心设计的shell脚本？

我已经尝试了以下内容,但它不能令人满意,因为它无法执行别名,而且速度有点慢.

history | tail -2 | head -1 | cut -d' ' -f4- | cat > prev_command.txt
sleep .01
chmod 777 prev_command.txt
eval prev_command.txt
rm prev_command.txt

理想情况下,我有一个这个脚本的别名,所以我可以在命令行中键入类似“prev”的内容,然后按Enter键再次运行上一个命令. 最佳答案 在bash中：

$help fc
fc: fc [-e ename] [-lnr] [first] [last] or fc -s [pat=rep] [command]
    Display or execute commands from the history list.

    fc is used to list or edit and re-execute commands from the history list.
    FIRST and LAST can be numbers specifying the range,or FIRST can be a
    string,which means the most recent command beginning with that
    string.

    Options:
      -e ENAME  select which editor to use.  Default is FCEDIT,then EDITOR,then vi
      -l    list lines instead of editing
      -n    omit line numbers when listing
      -r    reverse the order of the lines (newest listed first)

    With the `fc -s [pat=rep ...] [command]' format,COMMAND is
    re-executed after the substitution OLD=NEW is performed.

    A useful alias to use with this is r='fc -s',so that typing `r cc'
    runs the last command beginning with `cc' and typing `r' re-executes
    the last command.

    Exit Status:
    Returns success or status of executed command; non-zero if an error occurs.

注意别名r的建议;我经常使用它.

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