it means that the variable was only used once, cuased by -w. Since you dont usualy declair variables once, with out using them. Warn will generate that message.
Mark ----- Original Message ----- From: "Satheesh Ramamoorthy" <[EMAIL PROTECTED]> To: "'Mark Goland'" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Thursday, October 24, 2002 3:14 AM Subject: RE: How to rename file with a serial extension for backup? > Though it executes as intended, there is a warning message as "Name > "main::FH" used only once: possible typo at fren.pl line 5.", what does that > mean? > > Thanks, > _S_ > > -----Original Message----- > From: Mark Goland [mailto:mgoland@;optonline.net] > Sent: Thursday, October 24, 2002 12:08 PM > To: [EMAIL PROTECTED] > Subject: Re: How to rename file with a serial extension for backup? > > > You can probebly make it work with open, I am nto sure how to. This will > work... > #!/usr/local/bin/perl -w > use Fcntl; # for perm constants > use Errno; # for errno constants > > unless ( sysopen ($FH,"test.txt",O_WRONLY|O_CREAT|O_EXCL, 0744) ){ > > if( $!{EEXIST} ){ > print "file exists \n "; > # rename it here > } > } > > > > ----- Original Message ----- > From: "chris" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Wednesday, October 23, 2002 9:32 PM > Subject: How to rename file with a serial extension for backup? > > > > Before I re-invent the wheel... > > > > I open a file for output but do not want to overwrite if it exists. It > > should be renamed with a serial number as an extension > > > > for example > > filename test.txt > > > > rename to > > test.001 > > test.002 > > test.003 > > > > -- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > -- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > ---------------------------------------------------------------------------- ---- > -- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
