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2020-08-05 输出文件或目录的绝对路径脚本abspath

2020-08-05 输出文件或目录的绝对路径脚本abspath

作者: YPCHEN1992 | 来源:发表于2020-04-01 13:08 被阅读0次

    脚本:abspath
    Python版本

    #!/usr/bin/env python3
    import os
    import sys
    for entry in sys.argv[1:]:
         print(os.path.abspath(entry))
    

    使用

    abspath fastq.gz
    # output
     /data/fasta/fastq.gz
    

    bash 版本

    #!/usr/bin/env bash
    function usage() {
        echo "NAME:"
        echo "    print the absolte path of target File(s) or Folder(s)."
        echo "SYNOPSIS:"
        echo "    abspath <target> ..."
        echo "AUTHOR:"
        echo "    YP CHEN, 2020-08-05"
        exit 1
    }
    
    if [[ '--help' =~ $1 ]]; then
        if [[ $# -ne 0 ]]; then
            usage
        fi
    fi
    
    # If no argument, the current working directory will be print.
    if [[ $# -eq 0 ]]; then
        pwd
    else
        # Multiple arguments
        for fd in $@
        do
            if [[ -f $fd ]]; then
                # If relative path of a file was supplied.
                echo $fd | grep '/' > /dev/null
                if [[  $? -eq 0 ]]; then
                    cd $(dirname $fd) && echo $PWD/$(basename $fd) && cd - > /dev/null
                else
                    echo $PWD/$fd
                fi
            elif [[ -d $fd ]]; then
                # If realative path of a folder was supplied.
                echo $fd | grep '/' > /dev/null
                if [[ $? -eq 0 ]]; then
                    cd $fd && echo $PWD && cd - > /dev/null
                else
                    cd $fd && echo $PWD && cd - > /dev/null
                fi
            else
                # Unknown arguments
                echo "[ERROR] Invalid input: $fd"
            fi
        done
    fi
    

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