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  2. C shell - Wikipedia

    en.wikipedia.org/wiki/C_shell

    The C shell can also read commands from a file, called a script. Like all Unix shells, it supports filename wildcarding, piping, here documents, command substitution, variables and control structures for condition-testing and iteration. What differentiated the C shell from others, especially in the 1980s, were its interactive features and ...

  3. Command substitution - Wikipedia

    en.wikipedia.org/wiki/Command_substitution

    Because the shell can't know it has all the output from the child until the pipe closes or the child dies, it waits until then before it starts another child process to run the second command. This C shell example shows how one might search for all the C files containing the string malloc using fgrep and then edit any that are found using the ...

  4. Hamilton C shell - Wikipedia

    en.wikipedia.org/wiki/Hamilton_C_shell

    The original C shell uses an ad hoc parser. This has led to complaints about its limitations. It works well enough for the kinds of things users type interactively but not very well for the more complex commands a user might take time to write in a script. It is not possible, for example, to pipe the output of a foreach statement into grep ...

  5. Shc (shell script compiler) - Wikipedia

    en.wikipedia.org/wiki/Shc_(shell_script_compiler)

    shc takes a shell script which is specified on the command line by the -f option and produces a C source code of the script with added encryption. The generated source code is then compiled and linked to produce a binary executable. It is a two step process where, first, it creates a filename.x.c file of the shell script file filename.

  6. C shell - en.wikipedia.org

    en.wikipedia.org/.../page/mobile-html/C_shell

    C Shell running on Windows Services for UNIX. The C shell is a command processor which is typically run in a text window, allowing the user to type and execute commands. The C shell can also read commands from a file, called a script

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    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Shell script - Wikipedia

    en.wikipedia.org/wiki/Shell_script

    Editing a FreeBSD shell script for configuring ipfirewall. A shell script is a computer program designed to be run by a Unix shell, a command-line interpreter. [1] The various dialects of shell scripts are considered to be command languages. Typical operations performed by shell scripts include file manipulation, program execution, and printing ...

  9. Unix shell - Wikipedia

    en.wikipedia.org/wiki/Unix_shell

    tcsh and sh shell windows on a Mac OS X Leopard [1] desktop. A Unix shell is a command-line interpreter or shell that provides a command line user interface for Unix-like operating systems. The shell is both an interactive command language and a scripting language, and is used by the operating system to control the execution of the system using ...