我正在尝试以颜色显示路径,但我遇到了问题。
我有一些不变的路径 - 在变量 MyPath 中。我想在 PS1 中创建彩色路径,但如果 pwd 显示不同的路径,那么我的路径(但包括 MyPath)那么我想以不同的颜色打印其余的路径(用不同颜色的斜杠)。
我写了一些代码,但我不知道是否可以将其应用到 PS1 上。
它应该是这样的:
[ [email protected]:/ -> /media/user/folder/ ]
# : cd /var/www/html
[ [email protected]:/ -> /var/www/html/ ] (blue slash and green dir names)
# : cd applications
[ [email protected]:/ -> /var/www/html/applications/ ] (blue slash and green dir names but last 2 slashes in green color and last dir "application" in red color)
# : cd tmp
[ [email protected]:/ -> /var/www/html/applications/tmp/ ] (blue slash and green dir names but last 3 slashes in green color and 2 last dirs "application" and "tmp" in red color)
我被困住了 - 我不知道该怎么做。
我的代码:
#!/bin/bash
MyPath="/var/www/html"
MyPathLength=$( echo ${MyPath} | wc -m)
CurrentPath="/var/www/html/functions/design"
slashColor="\[$(tput setaf 6)\]/\[$(tput sgr0)\]"
dirColor="\[$(tput setaf 2)\]"
path="";
FinalPath="";
for w in $(echo ${CurrentPath} | tr "/" " ");
do
path="${path}/${w}";
pathLength=$( echo ${path} | wc -m)
if [ "${pathLength}" == "${MyPathLength}" ];
then
FinalPath="${FinalPath}\[$(tput setaf 6)\]/\[$(tput sgr0)\]\[$(tput setaf 2)\]$w\[$(tput sgr0)\]\[$(tput setaf 6)\]/\[$(tput sgr0)\]";
elif [ "${pathLength}" -lt "${MyPathLength}" ];
then
FinalPath="${FinalPath}\[$(tput setaf 6)\]/\[$(tput sgr0)\]\[$(tput setaf 2)\]$w\[$(tput sgr0)\]";
elif [ "${pathLength}" -gt "${MyPathLength}" ];
then
FinalPath="${FinalPath}\[$(tput setaf 1)\]$w\[$(tput sgr0)\]\[$(tput setaf 2)\]/\[$(tput sgr0)\]";
fi;
done
echo "PS1=\"${FinalPath}\"" > /home/bashrc_split
cd "/";
(
bash --rcfile /home/bashrc_split # I want to open new shell with new PS1
)
有什么帮助吗?
答案1
我会在 .bashrc 中放入类似于以下代码的内容,而不需要每次按 Enter 键时打开和写入其他文件
SEP=("/" "/")
SEP_COLOR=("\e[0;34m" "\e[0;32m") #colors for: (FIXED - DEFAULT) SEPARATOR STRING
DIR_COLOR=("\e[0;32m" "\e[0;31m") #colors for: (FIXED - DEFAULT) DIR NAMES
CLOSE_COLOR="\e[0m"
FIXED_DIR=" /var/www/html"
FIXED_DIR=$(realpath ${FIXED_DIR})
FIXED_DIR_ARRAY=()
DIR=${FIXED_DIR}
while [[ "$DIR" != "/" ]]; do
B=$(basename -z $DIR)
DIR=$(dirname -z $DIR)
FIXED_DIR_ARRAY+=($B)
done
set_PS1 (){
local DIR=$PWD
local CUR_DIR_ARRAY=()
while : ; do
local B=$(basename -z $DIR)
local DIR=$(dirname -z $DIR)
CUR_DIR_ARRAY+=($B)
[[ "$DIR" == "/" ]] && break
done
local SELECTOR=0
local STR=""
local i=1
while [[ "$i" -le "${#CUR_DIR_ARRAY[@]}" ]] ; do
if [ -n $SELECTOR ] &&
[ $i -gt ${#FIXED_DIR_ARRAY[@]} ] ||
[ "${CUR_DIR_ARRAY[-$i]}" != "${FIXED_DIR_ARRAY[-$i]}" ];
then
SELECTOR=1
fi
local x=$(($SELECTOR%2));
STR+="${SEP_COLOR[$x]}${SEP[$x]}"
[[ "${CUR_DIR_ARRAY[-$i]}" != "${SEP[$x]}" ]] && STR+="${DIR_COLOR[$x]}${CUR_DIR_ARRAY[-$i]}"
STR+="${CLOSE_COLOR}"
((i++))
done
printf "${STR}"
}
PS1="[ \u@\h:/ -> \[\$(set_PS1)\] ] "
答案2
目前它工作得很好,但必须重写。当有人去 /var/www/html/next_dir/ 时,next_dir 是绿色的,var www 和 html 是红色的:)
子shell.sh:
cd "/var/www/html";
(
bash --rcfile /home/username/bashrc_mount;
)
bashrc_挂载:
#!/bin/bash
function UpdatePath()
{
MyPath="$1";
MyPathLength=$( echo ${MyPath} | wc -m);
CurrentPath="`pwd`";
if [ $( echo ${CurrentPath} | grep "${MyPath}" | wc -l) == "0" ];
then
$(cd ${MyPath}"/"); # this doesn't work in subshell - I don't know why... :(
fi;
path="";
FinalPath="";
for w in $(echo ${CurrentPath} | tr "/" " ");
do
path="${path}/${w}";
pathLength=$( echo ${path} | wc -m);
if [ "${pathLength}" == "${MyPathLength}" ];
then
FinalPath="${FinalPath}$(tput setaf 3)/$(tput sgr0)$(tput setaf 1)$w$(tput sgr0)$(tput setaf 4)/$(tput sgr0)";
elif [ "${pathLength}" -lt "${MyPathLength}" ];
then
FinalPath="${FinalPath}$(tput setaf 3)/$(tput sgr0)$(tput setaf 1)$w$(tput sgr0)";
elif [ "${pathLength}" -gt "${MyPathLength}" ];
then
FinalPath="${FinalPath}$(tput setaf 2)$w$(tput sgr0)$(tput setaf 4)/$(tput sgr0)";
fi;
done
if [ "${CurrentPath}" == "/" ];
then
FinalPath="$(tput setaf 3)/$(tput sgr0)";
fi;
echo "${FinalPath}";
}
DIR="$(pwd)";
PS1="$(tput setaf 4)$(tput bold)[ $(tput setaf 6)\u$(tput setaf 4)@$(tput setaf 1)${address}$(tput setaf 4):$(tput setaf 6)${mountFrom} $(tput setaf 4)]\n\[\$(UpdatePath \$(echo -en \$DIR) \${montTo} )\] \n$(tput setaf 6)\\$ $(tput setaf 7): $(tput sgr0)$(tput sgr0)";
现在我在更改目录时遇到问题
当 subshell 在 /var/www/html 中启动并且有人会上升(例如 /var/www)时,它应该将他移动到 /var/www/html 。同样,当执行“cd /”时。目前它不起作用,但之后我将重写代码:)