How to figure out the diskspace used? 6

[rock31]

In our unix system, I was assigned a chunk of diskspace.
How could know how much I used, and how much remain?
Thanks

 

[Yrrk]

df -k (or i prefer df -h on linux) will show the system's file systems and how much space is used/assigned. If however you want to see how much space is used in a particular directory (not just a file system), you'll want to use some varient of the du command. Depending on your flavor of unix you might want to use different options. e.g. again not all of them support the -h flag which shows it in more human-readable output of M, G, K.. try doing a man on du and df and you should be able to figure it out..

[root@profserv cgi-bin]# du -sh /home/*
1.2M /home/adiwakar
492K /home/dferrant
1.9M /home/gwichman
16K /home/lost+found
740K /home/mprimici
84K /home/nagios
24K /home/rodeste
20K /home/smap
[root@profserv cgi-bin]# du -sh /home
4.4M /home

 

[mpramods]

du to find out the diskspace you used each filewise.
df -k /dir to find out the disk free in that dir


cheers,
mpramods

 

[rock31]

Hi, Yrrk, and mpramods,

thank you very much.

 

[BrianAtWork]

Check out this exerpt from the book "Wicked Cool Shell Scripts". Just copy this to create a new script and run it to see available space on each filesystem.

#!/bin/sh

# diskspace - summarize available disk space and present in a logical
#    and readable fashion

tempfile="/tmp/available.$$"

trap "rm -f $tempfile" EXIT

cat << 'EOF' > $tempfile
    { sum += $4 }
END { mb = sum / 1024
      gb = mb / 1024
      printf "%.0f MB (%.2fGB) of available disk space\n", mb, gb
    }
EOF

df -k | awk -f $tempfile

exit 0

 

[071]

This will give you max to min
du -k | sort -nr | more



Cheers,
71

 

[perda04]

#!/bin/ksh
MAILTO="user@host.com"
echo "df -k output for `date` `uname -a`" > /tmp/df.out
case `uname -s` in
SunOS | Linux | OSF1 | UNIX_SV | FreeBSD )
if [ -s "/etc/redhat-release" ] ; then cat /etc/redhat-release >> /tmp/df.out ; fi
set -- `df -k | sed -e 's/%//g' | awk '/^\/dev/ { printf("%s %s\n", $5, $6) }'`
;;
HP-UX )
set -- `bdf | sed -e 's/%//g' | awk '/^\/dev/ { printf("%s %s\n", $5, $6) }'`
AIX )
set -- `df -k | sed -e 's/%//g' | awk '/^\/dev/ { printf("%s %s\n", $4, $7) }'`
;;
esac

while [ $# -ge 2 ] ; do
CAPACITY=$1
FS=$2
shift 2

if [ $CAPACITY -gt 90 ] ; then
echo "$FS is at $CAPACITY %" >> /tmp/df.out
fi
done
if [ `wc -l /tmp/df.out | awk '{ print $1 }'` -ge 2 ] ; then
cat /tmp/df.out | mail -s "`date`" $MAILTO
fi

 

[PHV]

I personnally use this awk program:
#!/usr/bin/awk -f
# cmd/df.awk Disk Free
BEGIN {
cmd="sync;LANG=C df -tk";fmt="%-28s %-23s%9s %9s %7s\n"
printf fmt,"MountDir","FileSystem","Total(Mb)","Free","Occup."
trt=sprintf(fmt,"----------","----------","---------","---------","------")
printf trt
fmt="%-28s %-23s%#9.2f %#9.2f %6.2f%%\n"
while((cmd|getline)==1){
if(substr($1,1,1)=="/"){
mountDir=$1
mountDev=substr($2,1,1)=="(" ? substr($2,2) : $2
sub(/[) \t]*:$/,"",mountDev)
nbFree=(substr($3,1,1)==")" ? $4 : $3)/1000
} else if($0~/otal/){
nbTot=($1~/otal/ ? $2 : $1)/1000
if(nbTot){
printf fmt,mountDir,mountDev,nbTot,nbFree,100*(nbTot-nbFree)/nbTot
tTot+=nbTot;tFree+=nbFree;tNb++
}}
}; close(cmd)
exit
}
END {
if(tTot && tNb>1){
printf trt""fmt,"Summary","All",tTot,tFree,100*(tTot-tFree)/tTot
}}

Hope This Helps, PH.
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