String manipulation

[dude70]

Hi

I have a string variable s="manipulate"

I want to extract from pos 2 to 5 . I should get a string "anip" what is the command in ksh.

Thanks.

[Brian Markus]

#!/bin/sh
s="manipulate"
s1=`expr substr $s 2 4`
echo $s1


Enjoy.. :)

-Brian.

[Hein van den Heuvel]

Or:

echo "manipulate" | cut -b 2-5


Hein.

[Mark Grant]

or my favourite (because it works with all shells)

s=`expr "manipulate" : "^.\(....\).*"`

[RAC_1]

echo "manipulate" | cut -c2-5

[Christian Gebhardt]

Hi
what's about
--------------------------
s=manipulate
echo $s | awk '{print substr($0,2,4)}'
---------------------------
works also with every shell

Chris

[Elmar P. Kolkman]

echo $s | cut -c2-5
OR
echo $s | sed 's|^.\\(...\\).*$|\\1|'

[dude70]

Thank you all guys! It worked!

[Rodney Hills]

Since you specified ksh, then the following will work for a fixed substring. The benefit of this is that it does not have to start a subshell to run another command (awk, expr, etc...).

s="manipulate"
typeset -L4 a="${s#??}"

s#?? will return "s" with the first 2 characters stripped. typeset -L4 will put that result into "a", but limit the size to 4 characters.

This technique doesn't work if the extract may be variable.

HTH

-- Rod Hills