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Top Forums Shell Programming and Scripting ksh String Manipulation - removing variables from within a variable Post 303029813 by bakunin on Friday 1st of February 2019 06:03:04 AM
Old 02-01-2019
Quote:
Originally Posted by MadeInGermany
For example, Solaris ksh88:
Code:
echo "${NAMES//${EXCLUDE_NAME}}"
ksh: "${NAMES//${EXCLUDE_NAME}}": bad substitution

Hmm, in this case i stand corrected. I only used it with the sh version in AIX (which is a ksh88) and there it works. So either it is a bug from porting it to Solaris or IBM fixed it when porting the ksh to AIX. Interesting to know that this feature seems not so global as i thought it to be.

/Addendum: only now i recognised a rather careless typo in my example above, which i have now corrected: instead of the correct ${NAMES/${EXCLUDE_NAME}/} (replace ${EXCLUDE_NAME} with nothing) i used ${NAMES//${EXCLUDE_NAME}} (replace nothing with ${EXCLUDE_NAME} ??), which is fo course wrong. You may want to try again with Solaris as, alas, my trusted old U05 seems not to work any more.

@apmcd74:
Please notice that when you define a variable with:

Code:
cname=( word1 word2 word3 [...] )

you create an array, not a string. The parameter expansion ${cname/searchword/replacement} deals with strings though. i.e.

Code:
variable="++old++"
echo ${variable/old/NEW}
++NEW++

bakunin

Last edited by bakunin; 02-01-2019 at 07:29 AM..
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