shar - create a shell archive
$ sudo apt install sharutils
provides shar package
To create a shar archive file.
$ shar *.txt > mytext.shar
$ shar *.pdf > mypdf.shar
$ shar *.mp3 > mymp3.shar
$ shar *.c > myc.shar
remove all .txt , .pdf , .mp3 , .c files
and then,
To extract shar archive file
$ unshar mytext.shar
$ unshar mypdf.shar
$ unshar mymp3.shar
$ unshar myc.shar
regards,
T.Dhanasekar