Question

我想做一件简单的事情让我的队友生活更轻松。他们不断地将报价复制到命令行中，这些命令行的格式化会破坏命令，即：“test”vs.＆＃34; test＆＃34;

事实证明这令人非常恼火：

function damn() { !!:gs/“/" }

或：

alias damn='!!:gs/“/"'

两者似乎都没有用，并且一直给我错误

-bash: !!:gs/“/" : No such file or directory

或只是：

＆GT;

我必须在这里遗漏一些明显的东西。

Answer 1

fc在函数或别名中不起作用。根据bash手册：

历史记录扩展在读完整行后立即执行 ，然后将shell分解为单词。

您可以使用内置[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] #命令：

help fc

对于快速参考，以下是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.的输出。

push

Answer 2

如果你想对字符串做一些超出替换的事情，这是一个稍微更通用的解决方案，使用bash函数来包装fc调用。

function damn() {
    # Capture the previous command.
    cmd=$(fc -ln -1)

    # Do whatever you want with cmd here
    cmd=$(echo $cmd | sed 's/[“”]/"/g')

    # Re-run the command
    eval $cmd
}

在bash别名或函数中使用历史扩展

2 个答案: