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Homework and Emergencies Homework & Coursework Questions Create script to add user and create directory Post 302509430 by m1xram on Wednesday 30th of March 2011 08:20:07 PM
Old 03-30-2011
Code:
egrep -q "^$username:" /etc/passwd
if [ $? -eq 0 ]; then
    echo "found"
fi

I don't understand your question about the carat character. '^' can be inserted like any other character. In VI you hit 'i' to insert and then <shift 6> on a US keyboard.

I added ':' character to the end of the match to make sure it is an exact match. For instance "^Joe" can match "Joe", "Joe2", or "Joe_38933". "^Joe:" will only match user "Joe".
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Pod::Text::Overstrike(3pm)				 Perl Programmers Reference Guide				Pod::Text::Overstrike(3pm)

NAME
Pod::Text::Overstrike - Convert POD data to formatted overstrike text SYNOPSIS
use Pod::Text::Overstrike; my $parser = Pod::Text::Overstrike->new (sentence => 0, width => 78); # Read POD from STDIN and write to STDOUT. $parser->parse_from_filehandle; # Read POD from file.pod and write to file.txt. $parser->parse_from_file ('file.pod', 'file.txt'); DESCRIPTION
Pod::Text::Overstrike is a simple subclass of Pod::Text that highlights output text using overstrike sequences, in a manner similar to nroff. Characters in bold text are overstruck (character, backspace, character) and characters in underlined text are converted to overstruck underscores (underscore, backspace, character). This format was originally designed for hard-copy terminals and/or line printers, yet is readable on soft-copy (CRT) terminals. Overstruck text is best viewed by page-at-a-time programs that take advantage of the terminal's stand-out and underline capabilities, such as the less program on Unix. Apart from the overstrike, it in all ways functions like Pod::Text. See Pod::Text for details and available options. BUGS
Currently, the outermost formatting instruction wins, so for example underlined text inside a region of bold text is displayed as simply bold. There may be some better approach possible. SEE ALSO
Pod::Text, Pod::Simple The current version of this module is always available from its web site at <http://www.eyrie.org/~eagle/software/podlators/>. It is also part of the Perl core distribution as of 5.6.0. AUTHOR
Joe Smith <Joe.Smith@inwap.com>, using the framework created by Russ Allbery <rra@stanford.edu>. COPYRIGHT AND LICENSE
Copyright 2000 by Joe Smith <Joe.Smith@inwap.com>. Copyright 2001, 2004, 2008 by Russ Allbery <rra@stanford.edu>. This program is free software; you may redistribute it and/or modify it under the same terms as Perl itself. perl v5.16.2 2012-08-26 Pod::Text::Overstrike(3pm)
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