Bash 关联数组错误

Question

我好像遇到了这个问题。此代码在我的脚本的第 119 行中断，其中包含 bash 关联数组。对于评论，我很抱歉，但我对 bash 脚本的新手很友好。这是代码：

#!/bin/bash
# Aliases file

# Command usage: cpRecent/mvRecent -d {dirFrom},{dirTo} -n {numberofFiles} -e {editTheNames}

# Error codes
NO_ARGS="You need to pass in an argument"
INVALID_OPTION="Invaild option:"
NO_DIRECTORY="No directory found"


# Return values 
fullpath=
directories=
numfiles=
interactive=

typeset -a files
typeset -A filelist

# Advise that you use relative paths
__returnFullPath(){
    local npath
    if [[ -d  ]]; then
        cd "$(dirname )"
        npath="$PWD/$(basename )"
        npath="$npath/"         #Add a slash
        npath="${npath%.*}"     #Delete . 
    fi
    fullpath=${npath:=""}
}

__usage(){

wall <<End-Of-Message
________________________________________________
<cpRecent/mvRecent> -d "<d1>,<d2>" -n <num> [-i]
    -d First flag: Takes two arguments 
    -n Second flag: Takes one argument 
    -i Takes no arguments. Interactive mode
    d1 Directory we are reading from    
    d2 Directory we are writing to
    num Number of files 
________________________________________________
End-Of-Message
}


__processOptions(){
    while getopts ":d:n:i" opt; do
        case $opt in 
            d ) IFS=',' read -r -a directories <<< "$OPTARG";; 
            n ) numfiles=$OPTARG;;
            i ) interactive=1;;
            \? ) echo "$INVALID_OPTION -$OPTARG" >&2 ; return 1;;
            : ) echo "$NO_ARGS"; __usage; return 1;;
            * ) __usage; return 1;;
        esac
    done            
}


__getRecentFiles(){

    # Check some conditions
    (( ${#directories[@]} != 2 )) && echo "$INVALID_OPTION Number of directories must be 2" && return 2
    #echo ${directories[0]} ${directories[1]}

    # Get the full paths of the directories to be read from/written to
    __returnFullPath "${directories[0]}"
    directories[0]="$fullpath"
    __returnFullPath "${directories[1]}"
    directories[1]="$fullpath"  

    if [[ -z ${directories[0]} || -z ${directories[1]} ]]; then
        echo $NO_DIRECTORY 
        return 3
    fi

    [[ numfiles != *[!0-9]* ]] && echo "$INVALID_OPTION Number of files cannot be a string" && return 4

    #numfiles=$(($numfiles + 0))
    (( $numfiles == 0 )) && echo "$INVALID_OPTION Number of files cannot be zero" && return 4

    local num="-"$numfiles""

    # Get the requested files in directory(skips directories)
    if [[ -n "$(ls -t ${directories[0]} | head $num)" ]]; then
        # For some reason using local -a or declare -a does not seem to split the string into two
        local tempfiles=($(ls -t ${directories[0]} | head $num))
        #IFS=' ' read -r -a tempfiles <<< "$string" 
        #echo ${tempfiles[@]}
        for index in "${!tempfiles[@]}"; do
            echo $index ${tempfiles[index]}
            [[ -f "${directories[0]}${tempfiles[index]}" ]] && files+=("${tempfiles[index]}") 
        done
    fi

}

####################################
# The problem is this piece of code
__processLines(){
    local name
    local answer
    local dirFrom
    local dirTo
    if [[ -n $interactive ]]; then
        for (( i=0; i< ${#files[@]}; i++ )); do
            name=${files[i]}
            read -n 1 -p "Old name: $name. Do you wish to change the name(y/n)?" answer
            [[ answer="y" ]] && read -p "Enter new name:" name
            dirFrom="${directories[0]}${files[i]}"
            dirTo="${directories[1]}$name"
            fileslist["$dirFrom"]="$dirTo"
        done
    else                                    
        for line in $files; do
            dirFrom="${directories[0]}$line"
            echo $dirFrom # => /home/reclusiarch/Documents/test
            dirTo="${directories[1]}$line"
            echo $dirTo # => /home/reclusiarch/test
            fileslist["$dirFrom"]="$dirTo" # This is the offending line
        done    
    fi

}
###########################################################

cpRecent(){
    __processOptions $*
    __getRecentFiles
    __processLines
    for line in "${!filelist[@]}"; do
        cp $line ${filelist[$line]}
    done
    echo "You have copied ${#fileList[@]} files"
    unset files
    unset filelist
    return
}

mvRecent(){
    __processOptions $*
    __getRecentFiles
    __processLines
    for line in "${!filelist[@]}"; do
        mv $line ${filelist[$line]}
    done
    echo "You have copied ${#fileList[@]} files"
    unset files
    unset filelist
    return
}

cpRecent "$*"

我尝试了很多东西。运行脚本，

$ bash -x ./testing.sh -d "Documents,." -n 2

但似乎没有任何效果：错误是这样的（使用 bash -x 时）：

./testing.sh: line 119: /home/reclusiarch/Documents/test: syntax error: operand expected (error token is "/home/reclusiarch/Documents/test")

如果我运行命令行上的那个部分，它会起作用：

$ typeset -A filelist
$ filelist["/home/reclusiarch/Documents/test"]=/home/reclusiarch/test
$ echo ${filelist["/home/reclusiarch/Documents/test"]}
/home/reclusiarch/test

感谢您的帮助！！

编辑：我最初将脚本缩减为有问题的代码，但这可能不会运行。同样，如果你想测试它，你可以运行给出的 bash 命令。（脚本最好位于用户的 $HOME 目录中）。

编辑：已解决（Charles Duffy 已解决）这是一个忘记哪个名字的简单错误。

Answer 1

您的声明是：

typeset -A filelist

但是，您的用法是：

fileslist["$dirFrom"]="$dirTo"

fileslist 不是 filelist。

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