Script for BDF

[Leandro Lucena.]

Hey Budies,

Could someone help me regardind cut comand utilization?

I'm making a script and I need to cut the 5th and 6th colums of bdf output(%used and Mounted on).

Thanks,

Leandro!

[Geoff Wild]

Why cut when you can awk?


Rgds...Geoff

[Jeff Schussele · Accepted solution]

Hi Leandro,

awk would be a better tool here - try

bdf | awk '{print $5,$6}'

HTH,
Jeff

[Helen French]

Try this:

# bdf | awk '{print $5, $6}' > /tmp/bdf_list

[Mark Grant]

Not sure cut is your best best here.

awk is a possibility as in
df | awk '$1 ~ "/dev" { printf "%s %s\n",$4,$5}'

However bdf will split long lines and NFS mounts will break the above.

Here is a perl snippet that deals with all that

@FILESYSTEMS=(`df 2>/dev/null`);

while($filesystem=pop @FILESYSTEMS){
chop($filesystem);

# Dump df output we don't want

next if $filesystem =~ /.*Filesystem.*/;
next if $filesystem =~ /swap.*/;
next if $filesystem =~ /proc.*/;

# get filesystem percentage used (5th field)

($waste1,$waste2,$waste3,$waste4,$percentage,$fs)=split " ", $filesystem;

if($fs eq ""){ # A two line df filesystem
$fs=$percentage;
$percentage=$waste4;
$filesystem=pop @FILESYSTEMS;
}

next if $filesystem =~ /:/; # Lose NFS filesystems

print "Filestem $fs is $percentage used\";
}

[Kent Ostby]

Leandro --

My filename is called "useme"

cut -d" " -f5,6 useme

#cat useme
The fast brown fox chased after the lazy hare
#cut -d" " -f5,6 useme
chased after
#

The -d determines the delimter for cut to use.
Default is .


Best regards,

Kent M. Ostby

[Romildo]

Leandro,

Try this script ...

#!/bin/ksh
#
# Author : $Author: b077892 $
# Revision : $Revision: 1.1 $
# Date : $Date: 2001/05/29 16:18:25 $
#
# Header : @(#)$Header: bdf.sh $
#

bdf | awk '
BEGIN {
iLinha=0
}
{
if ( NF == 1 ) {
lin = substr( $1, 1, length( $1 ) )
} else {
iLinha++
if ( NF > 5 ) {
Linha[iLinha]=sprintf("%-30.30s %8s %8s %8s %8s %3s %s",$1,$2,$3,$4,$5,$6,$7 )
} else {
Linha[iLinha]=sprintf("%-30.30s %8s %8s %8s %8s %3s %s",lin,$1,$2,$3,$4,$5,$6 )
}
lin=""
}
}
END {
i=1
while ( i <= iLinha ) {
print Linha[i]
i++
}
}
'


You my select the fields that you need.

Best Regards.

Romildo