Redirecting echo output to 2 flat files

Shell Programming and Scripting
1

Hello all,

I have the following 2 questions..

1) I would like to capture the output of an echo command to 2 different files at the same time. This does not seem to work. Any ideas?

echo ==== started on `date` ==== >> res1.log res2.log

2) Would it be possible to just get the 5th and 6th column of df -k output as listed below?

use% Mounted on

10 /d1
20 /d2

Thanks

2

Use awk to get it.

df -k | awk '{ print $5 "  " $6}'

What you want capture in 2 different files ?
You can use for loop with 2 iterations to echo to 2 different files.

  • nilesh
3

Thanks Ynilesh for the quick response..I already tried using awk but as my df output is slightly different, I don't get the expected output as some of the FileSystem names are slightly longer.

df -k

Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
10157368 972328 8660752 11% /
/dev/sda3 248895 18257 217786 8% /boot
tmpfs 33028244 0 33028244 0% /dev/shm
/dev/sda5 10153988 154352 9475520 2% /home
/dev/sda7 10153988 154928 9474944 2% /opt
/dev/sda6 10153988 157852 9472020 2% /tmp
/dev/sda9 10153988 4591136 5038736 48% /usr
/dev/sda8 10153988 325752 9304120 4% /var
/dev/mapper/VolApp-App
102180192 10133068 86856676 11% /app
/dev/mapper/VolDB-IOLDevData
411817200 297404052 93494060 77% /d1
/dev/mapper/VolDBbkp-IOLDevbkp
102180192 192264 96797480 1% /d15

df -k | awk '{ print $5 " " $6}'

Use% Mounted

/
8% /boot
0% /dev/shm
2% /home
2% /opt
2% /tmp
48% /usr
4% /var

/app

/d1

/d15