Has anyone ever heard of a UNIX shell written in a reasonable language, like Python?
Shell scripts - sh, bash, csh, tcsh. Other scripting languages - TCL, Perl, Python.
A Unix shell is both a command interpreter and a programming language. As a command interpreter, the shell provides the user interface to the rich set of GNU utilities.
$? is used to find the return value of the last executed command. Try the following in the shell: ls somefile echo $? If somefile exists (regardless whether it is a file or directory), you will get the return value thrown by the ls command, which should be 0 (default "success" return value).
Bash is a powerful programming language, one perfectly designed for use on the command line and in shell scripts. This three-part series explores using Bash as a command-line interface (CLI) programming language.
(run/strings (find "." -name *.c -print))
), but it looks like a good "Perl in Scheme."If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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