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Full Discussion: Shell Scripting awk Problem
Top Forums Shell Programming and Scripting Shell Scripting awk Problem Post 302780423 by DisabledVet on Thursday 14th of March 2013 01:27:07 PM
Old 03-14-2013
Shell Scripting awk Problem
I'm limited in my skills related to *nix and I'm even more limited in my skills related to shell scripting and the use of awk. I have what should be a relatively simple shell script that looks in the /etc/fstab to see if a particular partition exists on the Linux system. The intention of this part of the script is to determine whether a /tmp partition exists on the system. If such a partition does exist, then no output would be returned. If such a partition does not exist, then three lines of text would be echoed to the screen and the script would terminate right there. So, I need to test both a positive (so that the lines of text get echoed to the screen, and a negative (so that nothing gets returned to the screen). In order to test a positive, I have my command looking for a /temp entry in /etc/fstab instead of a /tmp entry (since the system I'm testing does have a /tmp partition). Below is my code. I get no errors when I run it but I'm never able to get a positive, so I know my code is not working. Can someone tell me what is wrong with my code. Please, I do not won't suggestions about other ways to try to get the same information. I just want to know what to correct in my code to get it to work the way I need it to work.

Code:
#!/bin/bash
/bin/awk if ( grep "[[:space:]]/temp[[:space:]]" /etc/fstab )= "" then
    echo "The RHEL security benchmarks require that there be a /tmp file partition."
    echo "Since this system doesn't have one, you will need to rebuild the system,"
    echo "creating a /tmp partition.
    break
fi

Last edited by Scrutinizer; 03-14-2013 at 02:27 PM.. Reason: code tags
 

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LEARN ABOUT NETBSD

rump_msdos

RUMP_MSDOS(8)						    BSD System Manager's Manual 					     RUMP_MSDOS(8)

NAME

     rump_msdos -- mount a msdos image with a userspace server

SYNOPSIS

     file-system PUFFS
     pseudo-device putter

     rump_msdos [options] image mountpoint

DESCRIPTION

     NOTE! This manual page describes features specific to the rump(3) file server.  Please see mount_msdos(8) for a full description of the
     available command line options.

     The rump_msdos utility can be used to mount msdos file systems.  It uses rump(3) and p2k(3) to facilitate running the file system as a server
     in userspace.  As opposed to mount_msdos(8), rump_msdos does not use file system code within the kernel and therefore does not require kernel
     support except puffs(4).  Apart from a minor speed penalty there is no downside with respect to in-kernel code.

     rump_msdos does not require using vnconfig(8) for mounts from regular files and the file path can be passed directly as the image parameter.
     In fact, the use of vnconfig(8) is discouraged, since it is unable to properly deal with images on sparse files.

     In case the image contains multiple partitions, the desired partition must be indicated by appending the token ``%DISKLABEL:p%'' to the image
     path.  The letter ``p'' specifies the partition as obtained via disklabel(8).  For example, to mount partition ``e'' from image /tmp/wd0.img,
     use ``/tmp/wd0.img%DISKLABEL:e%''.

     It is recommended that untrusted file system images be mounted with rump_msdos instead of mount_msdos(8).	Corrupt file system images com-
     monly cause the file system to crash the entire kernel, but with rump_msdos only the userspace server process will dump core.

     To use rump_msdos via mount(8), the flags -o rump and -t msdos should be given.  Similarly, rump_msdos is used instead of mount_msdos(8) if
     ``rump'' is added to the options field of fstab(5).

SEE ALSO

     p2k(3), puffs(3), rump(3), mount_msdos(8)

HISTORY

     The rump_msdos utility first appeared in NetBSD 5.0.

BSD
								 November 21, 2010							       BSD
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