Hi all

Below code works in bash but it is not working in ksh.

enddate=`date -d "$enddate + $i day" "+%Y_%m_%d"`

Replace shebang #!/bin/bash to #!/bin/ksh -xv (set xtrace & verbose) and run the code to reveal lines that are not KSH compliant.

For example, I see you are using string search and replace which I guess is not supported in KSH.

startdate="${1//_/-}"  # change underscores into dashes

ksh does support it. But only ksh93 versions.

@OP: Which ksh version are you using? Are you running this on some machine not having GNU date installed?

I'd also replace the "echo"s with "print"s. "print" is a built-in command in ksh, while "echo" isn't.

What is equally ugly in ksh and in bash is this:

while [ 1 ]

while :

@Bakunin, can you site a version of ksh where echo is not builtin?

I have 11/16/88, 12/28/93 and mksh 41 and it appears to be builtin in all of these.

It might be built in but this is not required by the standard. The standard output command in ksh is "print" and if you use "echo" the shell executes "/bin/echo" if it is not built in. In the AIX ksh (a ksh88) this used to be so, but to be honest i haven't checked that lately.

bakunin

Thanks, that might explain why a lot of the old AIX ksh scripts we have around here use print (I've always replaced them with echo or printf, whenever making updates - just because it's more portable).