for do\done x 2 1

[Michael42]

Hello,

On a Sun Solaris 8 system in a Bourne shell script I want to run parallel do loops. I kinda want it to work like a two arrays.

TITLES="title1 title2 title3"
FILES="file1 file2 file3"

for FILE in FILES
do
  [COLOR=green]# I would like to output matching title here[/color]
  ls $FILE
done

As the script iterates through each of the FILES I would like to output the corresponding title from TITLES.

What is the easiest way to do this?

Thanks,

Michael42

 

[LKBrwnDBA]

Try this:

#!/bin/ksh
set -A TITLES title1 title2 title3
set -A FILES file1 file2 file3
i=0
for FILE in ${FILES[*]}
do
  # I would like to output matching title here
  echo "$i ${FILE} ${TITLES[$i]}"
  (( i += 1 ))
done

----------------------------------------------------------------------------
The person who says it can't be done should not interrupt the person doing it. -- Chinese proverb

 

[Michael42]

LKBrwnDBA,

That looks great!

I only have one issue...I have to write it as a Bourne shell script. :-(

I looked up the -A option in the man pages and it does not seem to be available for Bourne.

Any suggestions?


Thanks again,

Michael

 

[LKBrwnDBA]

sh or bash?

Don't know if sh supports arrays.

for bash use:

#!/bin/bash
TITLES=(title1 title2 title3)
FILES=(file1 file2 file3)
i=0
for FILE in ${FILES[*]}
do
  # I would like to output matching title here
  echo "$i ${FILE} ${TITLES[$i]}"
  (( i += 1 ))
done

----------------------------------------------------------------------------
The person who says it can't be done should not interrupt the person doing it. -- Chinese proverb

 

[LKBrwnDBA]

Ok got it for sh:

#!/bin/sh
TITLES="title1 title2 title3"
FILES="file1 file2 file3"
i=1
for FILE in $FILES
do
  # I would like to output matching title here
  TTL=`echo "$TITLES"|cut -d' ' -f $i`
  echo "$i $FILE $TTL"
  i=`expr $i + 1`  
done

----------------------------------------------------------------------------
The person who says it can't be done should not interrupt the person doing it. -- Chinese proverb

 

[Michael42]

LKBrwnDBA,

Wow! Simple and brilliant.

Thanks for taking the time to post,

Michael42