csh formatted strings

sera1711 · #1 (**permalink**) 01-05-2009

Hi,

currently I'm trying to write a csh script that should do the following:

set i = 1
while ($i < 100) {
cp AAA BBB
set i = $i +1
}

where AAA is a string like this file.11.txt, file.21.txt, ...
and BBB is a string like this file_0001, file_0002, ...

Is it possible to generate the string AAA and BBB automatically from the variable i?

Every hint is appreciated!
Kind regards,
Sebastian.

cfajohnson · #2 (**permalink**) 01-06-2009

Quote:

Originally Posted by sera1711

Hi,

currently I'm trying to write a csh script that should do the following:

set i = 1
while ($i < 100) {
cp AAA BBB
set i = $i +1
}

where AAA is a string like this file.11.txt, file.21.txt, ...
and BBB is a string like this file_0001, file_0002, ...

Is it possible to generate the string AAA and BBB automatically from the variable i?

It's simple in a Bourne-type shell:

Code:

i=1
while [ $i -lt 100 ]
do
  case $i in
     ?) nf=000$i ;;
    ??) nf=00$i ;;
   ???) nf=0$i ;;
  esac
  cp "file.$1.txt" "file_$nf"
done

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