error in creating array

bhandu · 07-10-2007, 06:27 AM

first is file and contains records with fields separated by ":"
i want to create array of the second field from file first.
But when I tried using below command it gives me error

pass1=(`cut -d ":" -f2 first`)

can anyone help me?

kiruthika · 07-10-2007, 06:44 AM

can you eb a bit more explanatory?

jschiwal · 07-10-2007, 06:55 AM

Code:

pass=(`cut -d ":" -f3 /etc/passwd`)
for ((i=0;i<${#pass[@]};i++)); do echo "${pass[$i]}"; done
25
104
102
1
2
40
...

lakris · 07-10-2007, 07:57 AM

Quote:

Originally Posted by bhandu

first is file and contains records with fields separated by ":"
i want to create array of the second field from file first.
But when I tried using below command it gives me error

pass1=(`cut -d ":" -f2 first`)

can anyone help me?

What exactly is it that doesn't work?
try

Code:

pass1=(`cut -d ":" -f2 first`);echo ${pass1[@]}

Are You sure You are using the right type of quotes? Copy the text from here to command line and try again.
Does the file first exist?
What is the error message?

bhandu · 07-10-2007, 01:28 PM

It still gives error that
unexpected '( '

custangro · 07-10-2007, 01:41 PM

Try:

Code:

pass1=$(`cut -d ":" -f2 first`)

jschiwal · 07-10-2007, 04:43 PM

Check if bash is your default shell.

lakris · 07-11-2007, 11:05 PM

Quote:

Originally Posted by jschiwal

Check if bash is your default shell.

Good point.

bhandu, type echo ${BASH_VERSINFO[@]}

what does it say?

lakris · 07-11-2007, 11:18 PM

Quote:

Originally Posted by custangro

Try:

Code:

pass1=$(`cut -d ":" -f2 first`)

Not quite,
the $() construct is the same as backticks, so You can write either

Code:

pass1=(`cut -d ":" -f2 first`)

or

Code:

pass1=$(cut -d ":" -f2 first)

Handy for when You can't find the backtick on a foreign keyboard