simple script to concatenate files
$ ls
'file exists.txt' 'file exists.txt.001' 'file exists.txt.002' 'file one.001' 'file one.002' 'file one.003' go.mod LICENSE main.go 'missing part.002' 'missing part.003' README.md
$ concat -d
file 'file exists' already exists
wrong file name found. expected: 'missing part.001', found: 'missing part.002', file number: #1
$ concat ~/Projects/concat
file 'file exists.txt' already exists
file created: file one
wrong file name found. expected: 'missing part.001', found: 'missing part.002', file number: #1
$ concat ~/Projects/concat -f
file 'file exists.txt' already exists
file created: file exists-001.txt
file removed: file exists.txt.001
file removed: file exists.txt.002
file created: file one
file removed: file one.001
file removed: file one.002
file removed: file one.003
wrong file name found. expected: 'missing part.001', found: 'missing part.002', file number: #1