尝试使用Awk这是用于此目的的正确工具，

An attempt using Awk which is the right tool meant for this,

awk -F"/" 'FNR==NR{filearray[$1]=$NF; next }!($1 in filearray){printf "%s has a different md5sum\n",$NF}' file2 file1
file4.php has a different md5sum

其中file2和file1如下

$ cat file1
df7a0edcb7994581430379db56d8d53b  /home/user/vanila/file-1.php
e1af39e94239a944440ab2925393ae60  /home/user/vanila/file-2.php
ce74e43d24d9c36cd579e932ee94b152  /home/user/vanila/file-3.php
95b7d47ed7134912270f8d3059100e8c  /home/user/vanila/file-4.php

$ cat file2
df7a0edcb7994581430379db56d8d53b  /home/user/file-1.php
94b2a24a1fc9883246fc103f22818930  /home/user/file-1.1.php
e1af39e94239a944440ab2925393ae60  /home/user/file-2.php
ce74e43d24d9c36cd579e932ee94b152  /home/user/file-3.php
f5233ee990c50aade7c4e3ab9b4fe524  /home/user/file-4.php

要查找该文件不存在于另一个文件中，

To find the file is not present in one and not in other,

awk -F"/" 'FNR==NR{filelist[$NF]=$NF; next;}!($NF in filelist){printf "%s is an extra file",$NF}' file1 file2
file-1.1.php is an extra file