Assume your file is oss.txt,

The first step is to save the following script as script.pl, %hash?=?();

while(<>)?{?#?For each line of the input file

chomp();?#?Remove the end-of-line newline character

$_?=~?s /\\/\//g;?#?Replace \ with /. If you want to distinguish between slashes and backslashes, please remove this line of code

$hash{$_}=1; ?#?Mark the line that has appeared

}

my?@lines?=?keys(%hash);?#?Get all marked lines

$"?=?"\n";?#?The delimiter that defines the output is a newline character

print("@lines");?#?Output

The second step is to execute the following command on the command line. After the execution is completed, the result.txt will be a file without repeated lines.

perl?script.pl?oss.txt?>?result.txt

For example, the content listed in your question, the filtered result is

oss/src/platform/graph

oss/src/include

If slashes and backslashes are distinguished, the result is, oss\src\include

oss\src\platform\ graph

oss/src/platform/graph

oss/src/include