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Shell Programming and Scripting

Arrays in HP Vs Linux

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# 1  
Old 04-17-2007
Arrays in HP Vs Linux
Hi,
I transfered a shell script from HP to Linux and have some errors running it:

Code:
>cat /tmp/tst4.dat
a
b
c
d
e
f

>cat test_script
#!/bin/sh 

MONTH_LIST=/tmp/tst4.dat

set -A MONTH_ARREY `cat $MONTH_LIST`

for MONTH in ${MONTH_ARREY[*]}
do
echo $MONTH
done

>./test_script
./test_script: line 5: set: -A: invalid option
set: usage: set [--abefhkmnptuvxBCHP] [-o option] [arg ...]

thanks
# 2  
Old 04-17-2007
HP is using ksh syntax while Linux uses bash syntax with sh. The bash syntax goes like this:
bash-3.00$ array=(a b c d e f g)
bash-3.00$ for i in ${array[*]} ; do echo i = $i ; done
i = a
i = b
i = c
i = d
i = e
i = f
i = g
bash-3.00$

But ksh is available for Linux and that is another approach. Your distro probably has an optional package with ksh.
# 3  
Old 04-17-2007
thanks, it is working Smilie
# 4  
Old 04-19-2007
Quote:
Originally Posted by ynixon
Hi,
I transfered a shell script from HP to Linux and have some errors running it:

Code:
>cat /tmp/tst4.dat
a
b
c
d
e
f

>cat test_script
#!/bin/sh 

MONTH_LIST=/tmp/tst4.dat

set -A MONTH_ARREY `cat $MONTH_LIST`

for MONTH in ${MONTH_ARREY[*]}
do
echo $MONTH
done

>./test_script
./test_script: line 5: set: -A: invalid option
set: usage: set [--abefhkmnptuvxBCHP] [-o option] [arg ...]


There's no need for cat:
Code:
MONTH_ARREY=( `< $MONTH_LIST` )
printf "%s\n" "${MONTH_ARREY[@]}"

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