print selected lines

#1 (**permalink**) 10-08-2007

Hi everybody:
I try to print in new file selected lines from another file wich depends on the first column.

I have done a script like this:

Code:

	lines=( "1" "2" "3" "4" "5" "6" "7" "8" "9" "10" "11" "21" "31" "41" "51" "55" "57" "58" )
	${lines[@]}
	for lines in ${lines[@]}
	do
	awk -v  target=$lines  ' $1 == target print $0 ' file1 >> file2
	done

But I have the next error:

Code:

./T-eff.sh: 42: Syntax error: "(" unexpected ------ where the line 42 correspond when I declare the array "lines"

Any suggestion?. Thanks in advance

rein · #2 (**permalink**) 10-08-2007

What shell are you using? In KSH the following works:

set -A lines = 1 2 3 4 5 6 7 8 9 10 11 21 31 41 51 55 57 58
print ${lines[12]}

will print '21'

#3 (**permalink**) 10-08-2007

Hi:
Thanks for your reply. I usually use the sh shell.

rein · #4 (**permalink**) 10-08-2007

I don't think the bourne shell supports arrays.

#5 (**permalink**) 10-08-2007

Hi again:
I have seen at "Advanced Bash-Scripting Guide" by Mendel Cooper that it is possible to use arrays on bourne shell scripts.

rein · #6 (**permalink**) 10-08-2007

Bash is the bourne again shell, the newer version of the bourne shell, or sh.

If you want bash, start your script with #!/bin/bash otherwise if no shell is selected sh will be used, and that doesn't support arrays as far as I know.

#7 (**permalink**) 10-08-2007

I have done, I have changed:

Code:

#!/bin/sh

for

Code:

#!/bin/bash

and now it works correctly. Thnaks a lot.

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
print all even lines of a txt file	ajp7701	Shell Programming and Scripting	1	04-17-2008 11:17 PM
print selected rows with awk	tonet	Shell Programming and Scripting	6	09-27-2007 06:23 AM
How to print specific lines with awk	Bugenhagen	Shell Programming and Scripting	10	08-16-2007 06:41 AM
How to print number of lines with awk ?	maheshsri	Shell Programming and Scripting	1	11-18-2005 02:19 AM

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:


	Powered by