假设我已经定义了一个阵列，这样的：
DIR=(A B Supercalifragilistic)
我需要调用脚本
./script A B Supercalifragilistic
其中参数通过内部功能处理的func1()和func2() 有没有一种方法，使一个别名（或任何东西，但是这就是所谓的） S为Supercalifragilistic以至于当我调用：
./script A B S
内部功能将处理/解释S作为Supercalifragilistic ？
先感谢您。
[编辑]
我要补充的是，脚本调用经由终端，而不是一个脚本的内部，并且所述参数AB Supercalifragilistic ，或（希望） S ，是在以所述终端的所述脚本传递。 我的混乱很抱歉。
[EDIT2]
该脚本是在这里： bash脚本：如果任何参数是“N”，那么功能有额外的选项 ，在下面的答案。 它的作用是在OP解释那里，下面的脚本。 最后，代替DIR=(ABCDEF)它的DIR=(AB Clarification DEF)它只是一个例子）以及文件夹Clarification是在比其余部分不同的路径唯一的一个。 我希望它现在更清楚，如果不是，请告诉我。
[编辑最后，我希望]
我想我可以喊“Evrika！”。 你的话“硬编码”让我意识到我必须修改脚本，每当有新的文件夹被添加/删除，所以我想使该数组动态的，如
./script ab "de" g导致array=(ab "de" g)
而且它应该更换一些短者（长路径Clarification >> C ），所以我做了这里基于此测试脚本还答案：
#!/bin/bash
array=()
for i in "$@"
do
if [[ "$i" == C ]]
then
array+=("Clarification")
else
array+=("$i")
fi
done
echo ${array[*]}
echo
for i in $(seq 0 $(( $# - 1 )))
do
echo ${array["$i"]}
done
而这也正是它显示在命令提示符下：
$ ./x.sh abc C "d f" e
abc Clarification d f e
abc
Clarification
d f
e
我想现在我终于可以让脚本做我想做的。 谢谢你，总之，您的答案。
I really have no idea what you exactly want to achieve! But I had a look at the script you linked in your last edit. Since you have a hard-coded array you might as well instead use an associative array:
declare -A dir_h
dir_h["A"]=A
dir_h["B"]=B
dir_h["C"]=../path/Clarification
dir_h["D"]=D
dir_h["E"]=E
to loop on the keys of dir_h, i.e., on A B C D E:
for k in "${!dir_h[@]}"; do
echo "$k => ${dir_h[$k]}"
done
Try it, this might help you with your "alias" problem (or not).
Here's your script from your other post, using this technique and in a more consistent and readable form (note: I haven't tried it, there might be some minor typos, let me know if it's the case):
#!/bin/bash
# ./test.sh = 1. searches for existing archives
# 1.a. if they exist, it backups them into BKP/.
# 1.b. if not, displays a message
# 2. archives all the directories in the array list
# ./test.sh N = 1. deletes all the folder's archives existent and
# specified in the array list
# 2. archives all the directories in the array list
# ./test.sh {A..F} = 1. searches for existing archives from arguments
# 1.a. if they exist, it backups them into BKP/.
# 1.b. if not, displays a message
# 2. archives all the directories passed as arguments
# ./test.sh {A..F} N = 1. deletes all the archives matching $argument.zip
# 2. archives all the directories passed as arguments
# The directories to be backed-up/archived, all in the current (script's) path
# except "C", on a different path
declare -A dir_h
dir_h["A"]=A
dir_h["B"]=B
dir_h["C"]=../path/Clarification
dir_h["D"]=D
dir_h["E"]=E
dir_h["F"]=F
declare -A nope_h
nope_h["A"]=bogus
nope_h["B"]=bogus
nope_h["C"]=nope
nope_h["D"]=bogus
nope_h["E"]=bogus
nope_h["F"]=bogus
die() {
(($#)) && printf >&2 "%s\n" "$@"
exit 1
}
bak() {
if [[ "$1" != N ]]; then
# Check that arg is in dir list:
[[ -n ${dir_h["$1"]} ]] || die "Error in bak: argument \`$1' not handled"
if [[ -f $1.zip ]]; then
mv -vi "$1.zip" "BKP/$1.zip_$(date +"%H-%M")" || die
else
echo "$(tput setaf 1) no $1.zip$(tput sgr0)"
fi
fi
}
# The archive function, if any argument is "N", processing it is omitted. Folder
# "C" has special treatment
archive() {
if [[ $1 != N ]]; then
7z a -mx=9 "$1.zip" "${dir_h["$1"]}" -r -x\!"$1/${nope_h["$1"]}" || die
fi
}
# Let's check once for all whether N is in the arg list
foundN=0
for a in "$@"; do [[ $a = N ]] && foundN=1 && break; done
if (($#==0)); then
# case #1: no arguments
for d in "${!dir_h[@]}"; do
echo "$(tput setaf 2) backup$(tput sgr0)"
bak "$d"
archive "$d"
done
elif (($#==1)) && ((foundN)); then
# case #2: one argument, "N"
for d in "${!dir_h[@]}"; do
echo "$(tput setaf 1) no backup needed, removing$(tput sgr0)"
rm -v "$d".zip || die
archive "$d"
done
elif (($#>1)) && ((foundN)); then
# case #3: folders as arguments with "N"
for f in "$@"; do
if [[ $f != N ]]; then
echo "$(tput setaf 1) no backup needed, removing$(tput sgr0)"
rm -v "$f.zip" || die
fi
archive "$f"
done
else
for f in "$@"; do
echo "$(tput setaf 2) backup$(tput sgr0)"
bak "$f"
archive "$f"
done
fi
From this you can do a lot, and have pretty much infinite "alias" handling possibilities.
无需使用别名。 你可以尝试这样的：
$ cat test.sh
#!/bin/bash
declare -a args
for arg in "$@"; do
[[ $arg = "S" ]] && arg="Supercalifragilistic"
args+=( "$arg" )
done
for arg in "${args[@]}"; do
echo "$arg"
done
$ ./test.sh a b S e
a
b
Supercalifragilistic
e
你并不需要在这里别名。 只需设置变量S到您的字符串：
S=Supercalifragilistic
然后使用：
./script A B "$S"
要不然打电话给你的脚本直接使用数组：
./script ${DIR[@]}
PS： 这是不使用全部大写在shell变量名的好习惯，你可以不小心覆盖PATH变量的一天。
你可以这样做：
processed_directories=()
for dir in "${directories[@]}"
do
if [ "$dir" = 'S' ]
then
dir='Supercalifragilistic'
fi
processed_directories+=("$dir")
done
它会替换值“S”与“Supercalifragilistic”阵列中的任何地方。
