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ksh on HP-UX -- variable expansion
Post 61699 by dangral on Monday 7th of February 2005 04:39:53 PM
02-07-2005
This is an annoyingly complicated script. I can't turn off wildcard expansion because there may be wildcards in another parameter. I put some echo statements into the script and found that the *.d* gets passed into the script literally with no problem. The script then passes the arguments into a function like so:
fa $*
That function then expands the wildcard (which I dont want it to do). If I put double quotes around $* as such:
fa "$*"
It gets passed into the function unexpanded (*.d*). Great!
But the tricky part is then I call getopts within function fa, which treats all parameters as one because of the double quotes. So I'm back at square one
fa $*
That function then expands the wildcard (which I dont want it to do). If I put double quotes around $* as such:
fa "$*"
It gets passed into the function unexpanded (*.d*). Great!
But the tricky part is then I call getopts within function fa, which treats all parameters as one because of the double quotes. So I'm back at square one
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LEARN ABOUT DEBIAN
shift
shift(1) User Commands shift(1) NAME
shift - shell built-in function to traverse either a shell's argument list or a list of field-separated words SYNOPSIS
sh shift [n] csh shift [variable] ksh * shift [n] DESCRIPTION
sh The positional parameters from $n+1 ... are renamed $1 ... . If n is not given, it is assumed to be 1. csh The components of argv, or variable, if supplied, are shifted to the left, discarding the first component. It is an error for the variable not to be set or to have a null value. ksh The positional parameters from $n+1 $n+1 ... are renamed $1 ..., default n is 1. The parameter n can be any arithmetic expression that evaluates to a non-negative number less than or equal to $#. On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways: 1. Variable assignment lists preceding the command remain in effect when the command completes. 2. I/O redirections are processed after variable assignments. 3. Errors cause a script that contains them to abort. 4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari- able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not performed. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), ksh(1), sh(1), attributes(5) SunOS 5.10 15 Apr 1994 shift(1)