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If statement for substring within string (korn)

 
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# 1  
Old 07-05-2011
If statement for substring within string (korn)
Hi all,

Just looking for a simple if statement that searches for a substring within a varaible, and then performs some function.

Problem is that I need it to work in Korn shell

$var = *string* does not work in Korn

i="xxxxxx00.00yyyyy.zzzzz"

want to find 00.00
# 2  
Old 07-05-2011
Are you sure you have it right? It works in most korn shells, even many ksh88. Try:

Code:
var="123456789"
[[ "$var" == *234* ]] && echo "var matches

it should print "var matches".

If it doesn't, what is your system, what is your shell?

---------- Post updated at 10:59 AM ---------- Previous update was at 10:57 AM ----------

For shells that don't, you can sometimes do:

Code:
if ! [ "${STR}" = "${STR/substring/}" ]
then
       echo "substring is inside ${STR}"

fi
# 3  
Old 07-05-2011
It seems as though that now works, perhaps a syntax error on my part at some point. I would like to use that argument to make some changes to filenames, however it appears as though I have some other errors as well.

Thank you for the help
 
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