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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isql(1) UnixODBC Reference isql(1)
NAME
isql - utility to submit SQL queries to a data source.
iusql - Unicode version of isql.
SYNOPSIS
isql DSN [UID [PWD]] [options]
DESCRIPTION
isql can be used to submit SQL to a data source and to format/output results. It can be used in batch or interactive mode.
OPTIONS
DSN Name of the data source you want to connect to.
UID Your login to connect the DSN.
PWD Your password needed to login to the DSN.
-b Batch mode. It will not do any prompting.
-dx Delimit columns with x.
-x0xXX Delimit columns with XX, where XX is in hex. For example -x0x09 will use a tab.
-w Wrap results in an HTML table
-c Print column names on first row. This options only has effect in combination with the -d option.
-mn Limit column display width to n
-v Verbose output.
--version
This prints the version.
EXAMPLES
cat My.sql | isql WebDB MyID MyPWD -w
Each line in My.sql must contain exactly 1 SQL command except for the last line which must be blank.
AUTHOR
This manual page was written by Kurt Roeckx <kurt@roeckx.be> for the Debian package of unixODBC.
UnixODBC Dec 2004 isql(1)