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Full Discussion: Array in loop is acting up
Top Forums Shell Programming and Scripting Array in loop is acting up Post 302222741 by RisingSun on Thursday 7th of August 2008 12:53:41 PM
Old 08-07-2008
Array in loop is acting up

Hello!

I have a question about loops and arrays. I'm trying to go through this:

for aa in 01 02 03
OrigNum[$aa]=$(grep ${Orig[$aa]} Ba3In2F12.prepos | wc -l)
OrigNum[$aa]=$((${OrigNum[$aa]} - 1))
echo ${OrigNum[$aa]}

etc

It gets stuck on the second line. The error reads:

./asdf: line 30: syntax error near unexpected token `OrigNum[$aa]=$(grep ${Orig[$aa]} Ba3In2F12.prepos | wc -l)'
./asdf: line 30: ` OrigNum[$aa]=$(grep ${Orig[$aa]} Ba3In2F12.prepos | wc -l)'


I take it all out and do this:

aa=01
OrigNum[$aa]=$(grep ${Orig[$aa]} Ba3In2F12.prepos | wc -l)
OrigNum[$aa]=$((${OrigNum[$aa]} - 1))
echo ${OrigNum[$aa]}

And it works! The other lines are the exact same. Is there something special I must do in a for loop? Thanks in advance!
 

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break(1)							   User Commands							  break(1)

NAME
break, continue - shell built-in functions to escape from or advance within a controlling while, for, foreach, or until loop SYNOPSIS
sh break [n] continue [n] csh break continue ksh *break [n] *continue [n] DESCRIPTION
sh The break utility exits from the enclosing for or while loop, if any. If n is specified, break n levels. The continue utility resumes the next iteration of the enclosing for or while loop. If n is specified, resume at the n-th enclosing loop. csh The break utility resumes execution after the end of the nearest enclosing foreach or while loop. The remaining commands on the current line are executed. This allows multilevel breaks to be written as a list of break commands, all on one line. The continue utility continues execution of the next iteration of the nearest enclosing while or foreach loop. ksh The break utility exits from the enclosed for, while, until, or select loop, if any. If n is specified, then break n levels. If n is greater than the number of enclosing loops, the outermost enclosing loop shall be exited. The continue utility resumes the next iteration of the enclosed for, while, until, or select loop. If n is specified then resume at the n- th enclosed loop. If n is greater than the number of enclosing loops, the outermost enclosing loop shall be used. On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways: 1. Variable assignment lists preceding the command remain in effect when the command completes. 2. I/O redirections are processed after variable assignments. 3. Errors cause a script that contains them to abort. 4. Words that follow a command preceded by ** that are in the format of a variable assignment are expanded with the same rules as a vari- able assignment. This means that tilde substitution is performed after the = sign, and also that word splitting and file name genera- tion are not performed. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), exit(1), ksh(1), sh( 1), attributes(5) SunOS 5.10 17 Jul 2002 break(1)
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