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variables don't work for inline "su" script
Post 302114807 by joekreif on Wednesday 18th of April 2007 03:17:32 PM
04-18-2007
variables don't work for inline "su" script
My first post here...
I cannot get variables to work when using inline KSH commands on a "su" command. I have a KSH script, below, that produces my problem:
#!/usr/bin/ksh
su <user_id> <<-END
export FLD1=`echo $PWD`
pwd
echo $FLD1
echo TEST
echo $PWD
END
The script will prompt me for the user's password, and then will display the following:
Password:
/home/jkreife
TEST
/home/jkreife
Notice the "blank" line between my $HOME directory and "TEST". It should have displayed the contents of the FLD1 variable, but does not. My intention is to run a KSH script that loads an Oracle DB using an oracle admin signon, but cannot get variables to work. Can any Unix expert look at this and give me some much needed help?
Thanks!
Joe K.
I cannot get variables to work when using inline KSH commands on a "su" command. I have a KSH script, below, that produces my problem:
#!/usr/bin/ksh
su <user_id> <<-END
export FLD1=`echo $PWD`
pwd
echo $FLD1
echo TEST
echo $PWD
END
The script will prompt me for the user's password, and then will display the following:
Password:
/home/jkreife
TEST
/home/jkreife
Notice the "blank" line between my $HOME directory and "TEST". It should have displayed the contents of the FLD1 variable, but does not. My intention is to run a KSH script that loads an Oracle DB using an oracle admin signon, but cannot get variables to work. Can any Unix expert look at this and give me some much needed help?
Thanks!
Joe K.
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LEARN ABOUT SUNOS
nice
nice(1) User Commands nice(1) NAME
nice - invoke a command with an altered scheduling priority SYNOPSIS
/usr/bin/nice [-increment | -n increment] command [argument...] /usr/xpg4/bin/nice [-increment | -n increment] command [argument...] csh Builtin nice [-increment | +increment] [command] DESCRIPTION
The nice utility invokes command, requesting that it be run with a different system scheduling priority. The priocntl(1) command is a more general interface to scheduler functions. The invoking process (generally the user's shell) must be in a scheduling class that supports nice. If the C shell (see csh(1)) is used, the full path of the command must be specified. Otherwise, the csh built-in version of nice will be invoked. See csh Builtin below. /usr/bin/nice If nice executes commands with arguments, it uses the default shell /usr/bin/sh (see sh(1)). /usr/xpg4/bin/nice If nice executes commands with arguments, it uses /usr/xpg4/bin/sh (see ksh(1)). csh Builtin nice is also a csh built-in command with behavior different from the utility versions. See csh(1) for description. OPTIONS
The following options are supported: -increment | -n increment increment is a positive or negative decimal integer that has the same effect on the execution of the utility as if the utility had called the nice() function with the numeric value of the increment option-argument. See nice(2). nice() errors, other than EINVAL, are ignored. If not specified, an increment of 10 is assumed. The super-user may run commands with priority higher than normal by using a negative increment such as -10. A negative increment assigned by an unprivileged user is ignored. OPERANDS
The following operands are supported: command The name of a command that is to be invoked. If command names any of the special built-in utilities (see shell_builtins(1)), the results are undefined. argument Any string to be supplied as an argument when invoking command. ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of nice: LANG, LC_ALL, LC_CTYPE, LC_MES- SAGES, PATH, and NLSPATH. EXIT STATUS
If command is invoked, the exit status of nice will be the exit status of command. Otherwise, nice will exit with one of the following val- ues: 1-125 An error occurred. 126 command was found but could not be invoked. 127 command could not be found. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: /usr/bin/nice +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ /usr/xpg4/bin/nice +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWxcu4 | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), ksh(1), nohup(1), priocntl(1), sh(1), shell_builtins(1), nice(2), attributes(5), environ(5), standards(5) SunOS 5.10 23 Jan 2004 nice(1)