shell文件重命名

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#! /bin/sh
for image in $(ls *.qcow2)
do
new_image='echo $image | awk -F'.qcow2' '{print $1}'"-v0.9.qcow2"
#echo $new_image
mv " $image" " $new_image"
done

其中

awk -F “:” ‘{print $1}’ /etc/passwd #以":"为分隔符打印/etc/passwd文件的第一例内