Testing the "file" commands thoroughness

file-bin-examples

$ echo -e '#!/usr/bin/awk -f\n\n# Just an awk script' | tee test-script.awk
#!/usr/bin/awk -f

# Just an awk script
$ cat test-script.awk
#!/usr/bin/awk -f

# Just an awk script
$ file --mime-type test-script.awk
test-script.awk: text/x-awk
$ mv -v test-script.awk test-script
test-script.awk -> test-script
$ file --mime-type test-script
test-script: text/x-awk
$ echo -e '#!/usr/local/bin/bash \n\n# Just a bash script' | tee test-script.sh
#!/usr/local/bin/bash

# Just a bash script
$ cat test-script.sh
#!/usr/local/bin/bash

# Just a bash script
$ file --mime-type test-script.sh
test-script.sh: text/x-shellscript
$ mv -v test-script.sh test-script
test-script.sh -> test-script
$ file --mime-type test-script
test-script: text/x-shellscript
$ mv -v test-script test-script.awk
test-script -> test-script.awk
$ file --mime-type test-script.awk
test-script.awk: text/x-shellscript
$ file --brief --mime-type test-script.awk
text/x-shellscript
$ echo -e '#!/usr/bin/perl\n\n# Just a perl script' | tee test-script.pl
#!/usr/bin/perl

# Just a perl script
$ file --mime-type test-script.pl
test-script.pl: text/x-perl
$ mv -v test-script.pl test-script.sh
test-script.pl -> test-script.sh
$ file --mime-type test-script.sh
test-script.sh: text/x-perl
$ echo -e '#! /usr/bin/env bash\n\n# Just a bash script using the env bin' | tee test-script.sh
#! /usr/bin/env bash

# Just a bash script using the env bin
$ cat test-script.sh
#! /usr/bin/env bash

# Just a bash script using the env bin
$ file --mime-type test-script.sh
test-script.sh: text/plain