hi friends,
I am using hp unix HP-UX B.11.11 .. Generally i do the compression to maintain the space availability . To compress the files first i used the TAR to collect all the files. it has done fine. when i am using command ls in the folder which has TAR file , it shows the TAR file existing . but, when i am using gzip command against this file it's not working other commands also not working against the TAR.
file permission is " -rw-rw-r-- "
I am unable to delete this file . please help me out . 
Error it shows " No such file or directory "
If your tar filename has special characters, you will have a problem....
redirect the output of ls to a file and see what you get.
ls > newfile
one more thing u need to use
tar -xvf <tar-file> to untar and tar -cvf <tar-name> <file> to tar the file....
Not having execute permission, does not matter.
You dont use gzip or gunzip for that, do you?
Is the ownership set correctly? Does the filename contain any special/unprintable characters (you can check that with ll -b)?
For future reference, you can create a tar.gz in one step:
$ tar -cf - /path/to/save | gzip -9 > save.tar.gz
Saves on space, since only the tar.gz is created, instead of the tar & the (temporary additional space for the) tar.gz