UNIX Shell Programming
UNIX Shell Programming, Revised Edition, shows UNIX users how to quickly and easily automate routine tasks by taking command of the UNIX shell. The shell makes light work of big tasks by transferring your simple instructions into powerful commands that put UNIX through its paces. You dont have to be a programmer, or a UNIX expert, to use shell programming to take control of your environment - if you are acquainted with UNIX, this book can take you the rest of the way. If you are a programmer, youll be surprised at the range of tasks you can automate with the shell - and at the speed and convenience the shell has over many high-level programming languages. If youre from the growing ranks of UNIX system administrators, this book shows how the shell can make your life easier while improving your service.
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with Directories 10 File Name Substitution 24 Standard
Tools of the Trade
And Away We Go
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alias args assigned backslash Bourne built-in char Chebba command command Command General Format command line contains current directory cursor default Delete Dennis Ritchie displayed double quotes echo command emacs enclosed entry etc/passwd example exec executed exported variables expr file descriptor file name substitution function getopts grep home directory inside int2 integer intro Ken Thompson Korn shell loop mand match mode mycp newline nroff null number of arguments operators option parameter substitution pattern phonebook phonebook file positional parameters progl program called redirected regular expression remove returns an exit rolo shell program shell variable single character sort specified standard input standard output status of zero steve stored string subshell Susan Goldberg terminal trap troff typeset UNIX system usr/steve whitespace characters word write zero exit status