有可能在bash中扩展类似
cd /u/lo/b
<点击标签>
至
cd /usr/local/bin
?
抱歉,我不能早点发布,我被困在工作中,并且bind函数比我最初想象的更容易出现问题。
这是我想出的:
绑定以下脚本:
#!/bin/bash
#$HOME/.bashrc.d/autocomplete.sh
autocomplete_wrapper() {
BASE="${READLINE_LINE% *} " #we save the line except for the last argument
[[ "$BASE" == "$READLINE_LINE " ]] && BASE=""; #if the line has only 1 argument, we set the BASE to blank
EXPANSION=($(autocomplete "${READLINE_LINE##* }"))
[[ ${#EXPANSION[@]} -gt 1 ]] && echo "${EXPANSION[@]:1}" #if there is more than 1 match, we echo them
READLINE_LINE="$BASE${EXPANSION[0]}" #the current line is now the base + the 1st element
READLINE_POINT=${#READLINE_LINE} #we move our cursor at the end of the current line
}
autocomplete() {
LAST_CMD="$1"
#Special starting character expansion for '~', './' and '/'
[[ "${LAST_CMD:0:1}" == "~" ]] && LAST_CMD="$HOME${LAST_CMD:1}"
S=1; [[ "${LAST_CMD:0:1}" == "/" || "${LAST_CMD:0:2}" == "./" ]] && S=2; #we don't expand those
#we do the path expansion of the last argument here by adding a * before each /
EXPANSION=($(echo "$LAST_CMD*" | sed s:/:*/:"$S"g))
if [[ ! -e "${EXPANSION[0]}" ]];then #if the path cannot be expanded, we don't change the output
echo "$LAST_CMD"
elif [[ "${#EXPANSION[@]}" -eq 1 ]];then #else if there is only one match, we output it
echo "${EXPANSION[0]}"
else
#else we expand the path as much as possible and return all the possible results
while [[ $l -le "${#EXPANSION[0]}" ]]; do
for i in "${EXPANSION[@]}"; do
if [[ "${EXPANSION[0]:$l:1}" != "${i:$l:1}" ]]; then
CTRL_LOOP=1
break
fi
done
[[ $CTRL_LOOP -eq 1 ]] && break
((l++))
done
#we add the partial solution at the beggining of the array of solutions
echo "${EXPANSION[0]:0:$l} ${EXPANSION[@]}"
fi
}
使用以下命令:
source "$HOME/.bashrc.d/autocomplete.sh"
bind -x '"\t" : autocomplete_wrapper'
输出:
>$ cd /u/lo/b<TAB>
>$ cd /usr/local/bin
>$ cd /u/l<TAB>
/usr/local /usr/lib
>$ cd /usr/l
可以将绑定行添加到您的~/.bashrc
文件中,执行以下操作:
if [[ -s "$HOME/.bashrc.d/autocomplete.sh" ]]; then
source "$HOME/.bashrc.d/autocomplete.sh"
bind -x '"\t" : autocomplete_wrapper'
fi
(摘自此答案)
此外,我强烈建议不要将此命令绑定到您的Tab密钥,因为它将覆盖默认的自动完成功能。
注意:在某些情况下,这很不恰当,因为如果您尝试自动完成"/path/with spaces/something"
,则很明显,因为complete的最后一个参数由决定${READLINE_LINE##* }
。如果这是您的问题,则应编写一个函数,该函数在考虑引号时返回行的最后一个参数
随时要求进一步澄清,我欢迎任何改进此脚本的建议
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我来说两句