RE: Unix question

[Brian MacLean]

this is ksh93 syntax (at least on Sun):   1453:oracle@e6500b> ksh 1453:oracle@e6500b> var=tester 1453:oracle@e6500b> echo ${var//e/o} ksh: ${var//e/o}: bad substitution 1453:oracle@e6500b> dtksh 1453:oracle@e6500b> var=tester 1453:oracle@e6500b> echo ${var//e/o} tostor 1453:oracle@e6500b> -----Original Message----- From: Mandar Ghosalkar [mailto:[EMAIL PROTECTED]] Sent: Friday, March 23, 2001 8:05 PM To: Multiple recipients of list ORACLE-L Subject: RE: Unix question check this question from korn faq at http://www.kornshell.com/doc/faq.html   Q24. How do I do global substitutions on the contents of shell variables? A24. Use // instead of / for global substitution, ${var//aa/bb} will expand to the value of  with each "aa" replace by "bb". so i tried $ var=tester $ echo $var tester $ echo ${var//e/o} bad substitution $   anyone out there :)   -Mandar   -----Original Message----- From: Big Planet [mailto:[EMAIL PROTECTED]] Sent: Friday, March 23, 2001 7:56 PM To: Multiple recipients of list ORACLE-L Subject: Unix question Hi geeks , How can I do substr and instr kind of operaion in unix shell script . is it possible ? like i have one paramter as "hostname" .. I want to trim quotes surrounding the hostname . One more question , is possible to read another text file line by line using a shel script and then edit that file . Actually I have this configuration file for my system which have keywords like $HOSTNAME$ , $SCHEMA$ which I want to replace with actual values at the time of installation by asking questions to the user.   TIA --Big planet