Find components of "setup" 5214

Vardan Kushnir

There are similar concepts in Linux. In Linux, the command prompt you see comes from a shell (usually 'bash', but it could also be 'tcsh', or 'zsh' or any one of a number of others). Bash has many built-ins. Type 'help' at the command prompt, and you'll get a list of built-ins.

There are also (vastly more common) external commands which are like DOS .exe files without the .exe suffix. These are located inbin, usr-bin,sbin,usr-sbin, and just about any other directory whose name contains "bin" or "sbin".

Linux does have "batch files", too, but they're called "shell scripts". They don't have the .bat extension. Sometimes they'll end in .sh (shell), sometimes not. You can use the 'file' command to find out what is what. For example,

$ filebin-lsbin-ls: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU-Linux 2.2.0, dynamically linked (uses shared libs), stripped

This tells me thatbin-ls is a compiled program, similar to a DOS exe. If it had been a shell script, it would have said so. Shell scripts can often be found inbin, and all the other places where other executables are found.

This applies to, say, Perl scripts as well. Scripts can be written in a variety of languages. The first line of any script will start with the characters "#!" and then the path to the interpreter that is to be used (e.g.,bin-bash orusr-bin-perl).

The questions were clear. You don't need to worry so much about your English!