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Full Discussion: unix questions for newbie
Top Forums UNIX for Dummies Questions & Answers unix questions for newbie Post 302140641 by gholdbhurg on Monday 15th of October 2007 04:10:47 AM
Old 10-15-2007
unix questions for newbie

Hi Unix gurus,

I know these are some easy questions.
But i just want to be sure about them.
Hope someone can help explain the following please?

1) if [[ -r /etc/ngtpath.conf ]]
- What does the "-r" means?
2) isql -U $DBUSER -D $DBNAME -S $DSQUERY -w 1000 -s";" << testfile > $FILE
- What does the -s";" mean and what does the "<<" do?
3) if [[ -s $RPTFILE ]]; then
- May i know what the "-s" option do?

Thanks so much in advance.
 

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HEAD(1) 							   User Commands							   HEAD(1)

NAME
head - output the first part of files SYNOPSIS
head [OPTION]... [FILE]... DESCRIPTION
Print the first 10 lines of each FILE to standard output. With more than one FILE, precede each with a header giving the file name. With no FILE, or when FILE is -, read standard input. Mandatory arguments to long options are mandatory for short options too. -c, --bytes=[-]K print the first K bytes of each file; with the leading '-', print all but the last K bytes of each file -n, --lines=[-]K print the first K lines instead of the first 10; with the leading '-', print all but the last K lines of each file -q, --quiet, --silent never print headers giving file names -v, --verbose always print headers giving file names --help display this help and exit --version output version information and exit K may have a multiplier suffix: b 512, kB 1000, K 1024, MB 1000*1000, M 1024*1024, GB 1000*1000*1000, G 1024*1024*1024, and so on for T, P, E, Z, Y. GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report head translation bugs to <http://translationproject.org/team/> AUTHOR
Written by David MacKenzie and Jim Meyering. COPYRIGHT
Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
The full documentation for head is maintained as a Texinfo manual. If the info and head programs are properly installed at your site, the command info coreutils 'head invocation' should give you access to the complete manual. GNU coreutils 8.22 June 2014 HEAD(1)
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