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Full Discussion: IF statement file exist or not?
Top Forums Shell Programming and Scripting IF statement file exist or not? Post 302616559 by bashily on Saturday 31st of March 2012 01:44:39 PM
Old 03-31-2012
I couldn't figure it out! would you take a look at this:
Code:
usage()
{
cat << EOF

USAGE: $0 [options] file

EOF
}

usageOption()
{
cat << EOF

$0 Must select report type: -u(ser) or -c(ommand)

EOF
}

clear

if [ $# -lt 1 ]; then
    usage
    exit 1
fi

user=
command=
fileName=
totalTime=
memoryUse=
priority=
#OPTIND=1         # Reset in case getopts has been used previously in the shell
while getopts ":u:c:f:tmp" opt;do
 case $opt in
    u)    user=$OPTARG; echo "$user" >&2;;
    c)    command=$OPTARG;;
    f)    fileName=$OPTARG;;
    t)    totalTime=$OPTARG;;
    m)    memoryUse=$OPTARG;;
    p)    priority=$OPTARG exit;;
    \?)    usage;exit 1;;
    *)        echo "Option -$OPTARG requires an argument.";exit 1;;
 esac
done
shift $((OPTIND - 1))

if [ -f "$1" ] ; then
    echo "This is a test!"
fi

 

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LEARN ABOUT LINUX

bzexe

BZEXE(1)						      General Commands Manual							  BZEXE(1)

NAME

       bzexe - compress executable files in place

SYNOPSIS

       bzexe [ name ...  ]

DESCRIPTION

       The  bzexe  utility  allows you to compress executables in place and have them automatically uncompress and execute when you run them (at a
       penalty in performance).  For example if you execute ``bzexe /bin/cat'' it will create the following two files:
	   -r-xr-xr-x  1 root  bin   9644 Feb 11 11:16 /bin/cat
	   -r-xr-xr-x  1 bin   bin  24576 Nov 23 13:21 /bin/cat~
       /bin/cat~ is the original file and /bin/cat is the self-uncompressing executable file.  You can remove /bin/cat~ once  you  are	sure  that
       /bin/cat works properly.

       This utility is most useful on systems with very small disks.

OPTIONS

       -d     Decompress the given executables instead of compressing them.

SEE ALSO

       bzip2(1), znew(1), zmore(1), zcmp(1), zforce(1)

CAVEATS

       The  compressed	executable  is a shell script. This may create some security holes. In particular, the compressed executable relies on the
       PATH environment variable to find gzip and some other utilities (tail, chmod, ln, sleep).

BUGS

       bzexe attempts to retain the original file attributes on the compressed executable, but you may have to fix them manually  in  some  cases,
       using chmod or chown.

																	  BZEXE(1)
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