linux – 在bash别名或函数中使用历史扩展

History expansion is performed immediately after a complete line is read,before the shell breaks it into words.

您可以使用builtin fc命令：

[STEP 100] # echo $BASH_VERSION
4.4.19(1)-release
[STEP 101] # alias damn='fc -s “=" ”=" '
[STEP 102] # echo “test”
“test”
[STEP 103] # damn
echo "test"
test
[STEP 104] #

为了快速引用,以下是help fc的输出.

fc: fc [-e ename] [-lnr] [first] [last] or fc -s [OLD=NEW] [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 [OLD=NEW ...] [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.