第一步：新建shell

vi dcmtonii.sh

里面的内容如下

#!/bin/bash
#dcm目录
dcm_path="/home/mcbrain/sharefolder/dti_dcm"
#nii目录
nii_path="/home/mcbrain/sharefolder/dti_nii"

ls $dcm_path |while read line;do
    mkdir -p ${nii_path}/$line/Dwi
    #mv ${dcm_path}/$line/x*.nii.gz ${nii_path}/$line/
    dcm2nii -z y -o "${nii_path}/$line/Dwi/" "${dcm_path}/$line/Dwi/"
    target_file=`ls ${nii_path}/$line/Dwi/x*.nii.gz|head -n 1`
    mv ${target_file} ${nii_path}/$line/Dwi/$line.nii.gz
done

第二步：给新建的shell加上权限

chmod +x dcmtonii.sh

第三步：运行

bash dcmtonii.sh