Hello Dear,

I have a variable defined in the file as

DATA_SPACE=df -k $data_dir | tail -1 | awk '{print $5}' | awk -F% '{print $1}'

I want to print this value which basically gives the disc space at the specified data_dir .


If I say $DATA_SPACE its giving me the string df -k $data_dir | tail -1 | awk '{print $5}' | awk -F% '{print $1}'
but I want to get the value of it .

If I execute the df -k $data_dir | tail -1 | awk '{print $5}' | awk -F% '{print $1}' at command prompt its giving me the value of diskspace specified for data_dir as some value example 86 - ie diskspace available in $data_dir is 86%


$data_dir is an environment variable.

thanks/mahesh

Hello Dear

Try the following but note carefully the type of quote around the whole thing:
Out of curiosity how many of you use this MIKELALA account?

I am learning and in project purely on unix development and I am not having ample exp on unix ksh programming thats why u see lots of questions from me ....I saw only dbforums website where their is a prompt and correct reply so I love to post any issues and their is immediate response too ..

Thanks for asking . I am the only one user ..

Can you please advice me a good book on KSH Programming.

your advice to put backquotes didn't worked as such -.

The thing is that all the variable are defined in .ini file and i am reading the .ini file to get the value of the variable ..


Rgds/mike

You need to start with little steps.
Try
Note that on line 2 the command date is enclosed by the "backtick" character. This character and the 'tilde', '~' character usually occupy the upper left key on the typewriter portion of the keyboard.
It is also important not to put spaces before and after the equal sign.
When you are writing a script, you can test each command that is in the script at the command prompt until you get the correct syntax.

google "ksh tutorial" for guidance.

Mahesh, I was just confused - previously you signed your name as Mike.

Your command shows the disk usage
If you want the 4th column showing space available in blocks then take the last line and just how colukmn 4:
To put this in a variable:
I used the book Unix Programming Environment and found it very useful - but there may be better books these days. If you do get the book then buy it 2nd hand.

Mike

maybe you want
eval $DATA_SPACE

Thanks - It worked.
eval=$DISC_SPACE

mike