Bash和Script帮助生成具有可变内容的文件

Question

扩展此问题：How to Create several files from a list in a text file?

摘要：

cat file_full_of_files_names | tr ' \t' '\n\n' | while read filename; do
if test -f "$filename"; then
echo "Skipping \"$filename\", it already exists"
else
   cp -i initial_content "$filename"
fi
done

非常适合我想要的东西，但我想扩展它。以下内容是'initial_content'中的内容

<?xml version="1.0" encoding="UTF-8"?> 
<selector xmlns:android="http://schemas.android.com/apk/res/android"> 
<item android:drawable="@drawable/com_aac_cachemate_demo_cachemate" /> </selector>

我想改变

@drawable/"XYZ"

XYZ变量到使用

中的内容创建的文件的名称

initial_content

但是XYZ变量填入了来自

的文件名

file_full_of_file_names

含量

任何脚本小子？抨击？谢谢你的帮助！

Answer 1

使用AWK代替cp：

cat file_full_of_files_names | tr ' \t' '\n\n' | while read filename; do
if test -f "$filename"; then
echo "Skipping \"$filename\", it already exists"
else
   awk -F"/" -v OFS="/" -v name="$filename" '/@drawable/{sub(/.*/,name"\"",$2);print;next}1' < initial_content > "$filename"

fi
done

测试：

jaypal:~/Temp] cat file # Sample File
<?xml version="1.0" encoding="UTF-8"?> 
<selector xmlns:android="http://schemas.android.com/apk/res/android"> 
<item android:drawable="@drawable/com_aac_cachemate_demo_cachemate" /> </selector>

[jaypal:~/Temp] echo $filename # Variable Initialization
name

[jaypal:~/Temp]  awk -F"/" -v OFS="/" -v name="$filename" '/@drawable/{sub(/.*/,name"\"",$2);print;next}1' file
<?xml version="1.0" encoding="UTF-8"?> 
<selector xmlns:android="http://schemas.android.com/apk/res/android"> 
<item android:drawable="@drawable/name"/> </selector>
[jaypal:~/Temp] 


[jaypal:~/Temp] filename="jaypal" # Re-initializing variable

[jaypal:~/Temp]  awk -F"/" -v OFS="/" -v name="$filename" '/@drawable/{sub(/.*/,name"\"",$2);print;next}1' file
<?xml version="1.0" encoding="UTF-8"?> 
<selector xmlns:android="http://schemas.android.com/apk/res/android"> 
<item android:drawable="@drawable/jaypal"/> </selector>