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cat5
n00b
Joined: 10 Apr 2002
Posts: 5
Location: Ottawa, On, Canada
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 Posted: Fri May 31, 2002 12:16 am Post subject: Nice little script to add to the end of .bash_profile |
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This shows up everytime you loging if added at the end of .bash_profile in $HOME
uptime ; echo
df -h | perl -npe \
's#/dev/(scsi|ide)/host0/bus(\d)/target(\d)/lun0/part(\d)\n#$1 disk
$2/$3/$4#;s/^\s{13}//'
echo ; free -m ; echo
who ; echo
Also, I just put it in /usr/bin/ with a filename.
Pretty cool... works on all systems.
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cat5@catfive.org |
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ElCondor
Guru
Joined: 10 Apr 2002
Posts: 520
Location: Vienna, Austria, Europe
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| Posted: Fri May 31, 2002 11:59 am Post subject: |
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what does (or should be doing) the perl script do to df -h? on my system it makes no difference.
* ElCondor pasa *
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Here I am the victim of my own choices and I'm just starting! |
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JefP@@
Apprentice
Joined: 09 May 2002
Posts: 179
Location: Belgium
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| Posted: Fri May 31, 2002 1:28 pm Post subject: |
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| elcondor wrote: | what does (or should be doing) the perl script do to df -h? on my system it makes no difference.
* ElCondor pasa * |
Here too, no difference |
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ealfert
Tux's lil' helper
Joined: 17 Jul 2002
Posts: 86
Location: Weston, FL, US
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| Posted: Tue Oct 29, 2002 2:04 am Post subject: |
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#man df
| Code: |
Options
-h, --human-readable
print sizes in human readable format (e.g., 1K 234M 2G)
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ealfert-linux / # df
| Code: |
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/hda5 15120616 3746536 10605988 27% /
tmpfs 2048 192 1856 10% /mnt/.init.d
/dev/hda6 2016488 336192 1577860 18% /var
/dev/hda7 2016488 821812 1092240 43% /home
/dev/hda8 15857360 32828 15019016 1% /backup
tmpfs 257292 0 257292 0% /dev/shm
/dev/hda2 36598 7955 26753 23% /boot
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ealfert-linux / # df -h
| Code: |
Filesystem Size Used Avail Use% Mounted on
/dev/hda5 15G 3.6G 11G 27% /
tmpfs 2.0M 192K 1.9M 10% /mnt/.init.d
/dev/hda6 2.0G 329M 1.6G 18% /var
/dev/hda7 2.0G 803M 1.1G 43% /home
/dev/hda8 16G 33M 15G 1% /backup
tmpfs 252M 0 252M 0% /dev/shm
/dev/hda2 36M 7.8M 27M 23% /boot
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Edward Alfert
RootMode, LLC
http://www.rootmode.com/ |
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lx
Veteran
Joined: 28 May 2002
Posts: 1012
Location: Netherlands
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| Posted: Wed Nov 06, 2002 9:31 pm Post subject: |
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| ElCondor wrote: | what does (or should be doing) the perl script do to df -h? on my system it makes no difference.
* ElCondor pasa * |
If filters the device string. it doesn't make a difference on your system because you probably use /dev/hda1 etc in fstab. if you use the new devfs names it makes a difference:
| Code: | bash-2.05b# df -h | perl -npe 's#/dev/(scsi|ide)/host0/bus(\d)/target(\d)/lun0/part(\d)\n#$1 disk
$2/$3/$4#;s/^\s{13}//'
Filesystem Size Used Avail Use% Mounted on
ide disk
0/0/5 6.6G 2.3G 4.3G 35% /
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| Code: |
bash-2.05b# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/ide/host0/bus0/target0/lun0/part5
6.6G 2.3G 4.3G 35% /
tmpfs 2.0M 244K 1.8M 12% /mnt/.init.d |
Cya lX
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"Remember there's a big difference between kneeling down and bending over.", Frank Zappa |
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securiteaze
Tux's lil' helper
Joined: 24 Oct 2002
Posts: 77
Location: Tulsa,Oklahoma
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| Posted: Fri Nov 08, 2002 3:24 am Post subject: What about when you logout? |
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What about when you logout?
The only line in my .bash_logout:
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Blah.. |
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Ka6aH
n00b
Joined: 30 Oct 2002
Posts: 4
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| Posted: Fri Nov 08, 2002 7:19 am Post subject: Re: Nice little script to add to the end of .bash_profile |
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What does it mean? From perlrun manpage:
| Quote: | A -p overrides a -n switch.
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So you must use -p or -n, not both. Otherwise -n option is ignored. Also sed is preferred here (smaller and faster):
| Code: | df -h | sed -e '/lun0/N;s/\/dev\/\(scsi\|ide\)\/host0\/bus\(.\)\/target\(.\)\/lun0\/part\(.\)\n \{15\}/\1 disk> \2\/\3\/\4/'
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This sed one-liner beautify df output and work ONLY on linux OS with mounted devfs partition when no device symlinks (like /dev/discs/disc0/part1 or /dev/hda1 for /dev/ide/host0/bus0/target0/lun0/part1) used and with no lvm/evms/nfs/samba volumes mounted; otherwise it show these volumes 'as is' |
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