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#!/bin/sh – Execute the file using the Bourne shell, or a compatible shell, assumed to be in the /bin directory #!/bin/bash – Execute the file using the Bash shell #!/usr/bin/pwsh – Execute the file using PowerShell #!/usr/bin/env python3 – Execute with a Python interpreter, using the env program search path to find it
The above script records to script.log all output of the exec command. However, some interactive programs (such as Python ) do not echo their standard input when run under the resulting shell, although they do when run under the script command, again due to the detection of a terminal.
This makes the script more portable, but also increases the risk that the wrong interpreter is selected because it searches for a match in every directory on the executable search path. It also suffers from the same problem in that the path to the env binary may also be different on a per-machine basis.
Python, Ruby, Lua, XLNT, and other interpreters also have command shells for interactive use. FreeBSD uses tcsh as its default interactive shell for the superuser, and ash as default scripting shell. Many Linux distributions have the Bash implementation of the Unix shell. Apple macOS and some Linux distributions use zsh.
In Linux, if the script was executed by a regular user, the shell would attempt to execute the command rm -rf / as a regular user, and the command would fail. However, if the script was executed by the root user, then the command would likely succeed and the filesystem would be erased. It is recommended to use sudo on a per-command basis instead.
Jinja, a Python-powered template engine, inspired by Django's template engine; Kid, simple template engine for XML-based vocabularies; Meson build system, a software tool for automating the building (compiling) of software; mod_python, an Apache module allowing direct integration of Python scripts with the Apache web server
In computing, a script is a relatively short and simple set of instructions that typically automate an otherwise manual process. The act of writing a script is called scripting . A scripting language or script language is a programming language that is used for scripting.
PlayOnLinux is developed using a combination of Bash, Python and wxPython. The system provides wrapper shell scripts that specify the configuration of Wine needed in order to install and run a particular application.