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Full Discussion: Problem with test syntax in script
Top Forums UNIX for Dummies Questions & Answers Problem with test syntax in script Post 302696245 by Corona688 on Tuesday 4th of September 2012 01:04:41 PM
Old 09-04-2012
You don't need to run ID 5 times to get 5 different pieces of data from it. Run it once, get all the data from it the first time.

You are using single quotes, which take their contents literally, where you need backticks, which run their contents. But you don't even need that statement.

You don't need to do \( all the time, just use quotes. Variables will expand inside double-quotes, even, so you don't need to end the quotes to use a variable.

Whenever you're doing if [ `... | wc -l` -gt somevalue ] to check something, you've probably missed a simpler way. Here, since I've overwritten the $1 ... arguments, I use the special "$#" variable, the number of arguments instead.

Code:
        USUARIO=$1
        DATA=`id $USARIO 2>/dev/null` # Save the data, ignore the error strings
	if [ $? -ne 0 ]
	then
		echo "El usuario $USUARIO no existe"
		exit
	fi

        # Note that $DATA is not in quotes and MUST NOT be in quotes.
        set -- $DATA # $1=NOMBRE, $2=GRUPOID, $3=GRUPOID2, etc.

	echo "(UID) y nombre: $1"
	echo "(GID) y numero de goup1: $2"
        [ "$#" -gt 2 ] && echo "(GID2) y numero de group2: $3"

Last edited by Corona688; 09-04-2012 at 02:13 PM..
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LEARN ABOUT DEBIAN

secon

SECON(1)								NSA								  SECON(1)

NAME

       secon - See an SELinux context, from a file, program or user input.

SYNOPSIS

       secon [-hVurtscmPRfLp] [CONTEXT]
       [--file] FILE
       [--link] FILE
       [--pid] PID

DESCRIPTION

       See a part of a context. The context is taken from a file, pid, user input or the context in which secon is originally executed.

       -V, --version
	      shows the current version of secon

       -h, --help
	      shows the usage information for secon

       -P, --prompt
	      outputs data in a format suitable for a prompt

       -u, --user
	      show the user of the security context

       -r, --role
	      show the role of the security context

       -t, --type
	      show the type of the security context

       -s, --sensitivity
	      show the sensitivity level of the security context

       -c, --clearance
	      show the clearance level of the security context

       -m, --mls-range
	      show the sensitivity level and clearance, as a range, of the security context

       -R, --raw
	      outputs  the sensitivity level and clearance in an untranslated format.

       -f, --file
	      gets the context from the specified file FILE

       -L, --link
	      gets the context from the specified file FILE (doesn't follow symlinks)

       -p, --pid
	      gets the context from the specified process PID

       --pid-exec
	      gets the exec context from the specified process PID

       --pid-fs
	      gets the fscreate context from the specified process PID

       --current, --self
	      gets the context from the current process

       --current-exec, --self-exec
	      gets the exec context from the current process

       --current-fs, --self-fs
	      gets the fscreate context from the current process

       --parent
	      gets the context from the parent of the current process

       --parent-exec
	      gets the exec context from the parent of the current process

       --parent-fs
	      gets the fscreate context from the parent of the current process

       Additional  argument CONTEXT may be provided and will be used if no options have been specified to make secon get it's context from another
       source.	If that argument is - then the context will be read from stdin.
       If there is no arugment, secon will try reading a context from stdin, if that is not a tty, otherwise secon will act as though  --self  had
       been passed.

       If none of --user, --role, --type, --level or --mls-range is passed.  Then all of them will be output.

SEE ALSO

       chcon (1)

AUTHORS

       James Antill (james.antill@redhat.com)

Security Enhanced Linux 					    April 2006								  SECON(1)
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