類似makefile的Bash腳本

Question

我想製作一個像makefile一樣工作的bash腳本。 它會有像-archive，-clean，-backup等選項。 唯一的要求是它必須具有-o參數，因此它指定了一個名稱。 我現在的問題是，我不知道如何從參數中提取.c文件。

例如，如果我inputed ./compile.sh -o名稱-backup hello_world.c print.c

我將如何編譯呢？

下面是我到目前爲止的代碼。

#!/usr/local/bin/bash 

if [ $1 != '-o' ]; then 
echo "ERROR -o wasn't present as first argument" 
echo "HELP" 
echo "BASH syntax: $ compile –o filename –clean –backup –archive -help cfilenames" 
echo "WHERE:" 
echo "$    Unix Prompt" 
echo "comiple  Name of bash program" 
echo "-o filename Mandatory Argument" 
echo "-clean  Optional and when present deletes all .o files" 
echo "-backup  Optional and copies all .c and .h files into backup directory" 
echo "-archive  Optional and Tars content of source directory. Then moved to backup directory" 
echo "-help  Provides list of commands" 
echo "cfilenames Name of files to be compiled together" 
fi 
NAME=$2 
shift 
shift 

options=$@ 
arguments=($options) 

index=0 
for argument in $options 
do 
    index=`expr $index + 1` 
    case $argument in 
     -clean) echo "clean" ;; 
     -backup) echo "backup" 
     mv -f *.c ~/backup 
     mv -f *.c ~/backup ;; 
     -archive) echo "archive" 
     tar -zcvf backup.tar.gz * 
     mv -f backup.tar.gz ~/backup/backup.tar.gz 
     ;; 
     -help) echo "help" 
       echo "HELP" 
       echo "BASH syntax: $ compile –o filename –clean –backup –archive -help cfilenames" 
       echo "WHERE:" 
       echo "$    Unix Prompt" 
       echo "comiple  Name of bash program" 
       echo "-o filename Mandatory Argument" 
       echo "-clean  Optional and when present deletes all .o files" 
       echo "-backup  Optional and copies all .c and .h files into backup directory" 
       echo "-archive  Optional and Tars content of source directory. Then moved to backup directory" 
       echo "-help   Provides list of commands" 
       echo "cfilenames Name of files to be compiled together" 
     ;; 
esac 
done 
exit; 

感謝

Answer 1

你似乎是在尋找getopts(1P)，是bash內置的解析選項。您按如下方式使用它：

#!/bin/bash 
while getopts "abc:" flag do 
    echo "$flag" $OPTIND $OPTARG 
done 

瞭解更多：http://aplawrence.com/Unix/getopts.html#ixzz1qAQ29TFW

如果您想使用長選項，你可以使用getopt(1)，一個單獨的程序，你可以從bash的調用。它是linux-util的一部分，它是大多數發行版或至少部分基本軟件包的默認安裝的一部分。