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Full Discussion: Multiple conditions in IF
Top Forums Shell Programming and Scripting Multiple conditions in IF Post 302975000 by RavinderSingh13 on Tuesday 7th of June 2016 03:04:22 AM
Old 06-07-2016
Quote:
Originally Posted by xeccc5z
RavinderSingh13
Thanks for your response and since I am new this I may missed out the rules and i will do it from now on
And my query is I am passing file names as command line arguments and my condition should alert the user if he fails to pass the parameter
am saving those parameters in a variable called file1, file2 and file3
i believe [ -z file ] will check whether file is a zero size file or not , correct me if iam wrong
Hello xeccc5z,

You welcome, you could hit THANKS button at left side of any post for any useful post to a person. Yes, for NULL values it should work.

Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
 

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mv(1)							      General Commands Manual							     mv(1)

Name
       mv - move or rename files

Syntax
       mv [-i] [-f] [-] file1 file2

       mv [-i] [-f] [-] file... directory

Description
       The command moves (changes the name of) file1 to file2.

       If  file2  already  exists,  it is removed before file1 is moved.  If file2 has a mode which forbids writing, prints the mode and reads the
       standard input to obtain a line.  If the line begins with y, the move takes place.  If it does not, exits.  For further information, see

       In the second form, one or more files (plain files or directories) are moved to the directory with their original file-names.

       The command refuses to move a file onto itself.

Options
       -		   Interprets all following arguments as file names to allow file names starting with a minus.

       -f		   Force. This option overrides any mode restrictions or the -i switch.

       -i		   Interactive mode.  If a move is to supersede an existing file, the system prompts youw with the name of the	file  fol-
			   lowed  by  a question mark.	If you type a string that begins with y, the move occurs.  If you type any other response,
			   the move does not occur.

Restrictions
       If file1 and file2 lie on different file systems, must copy the file and delete the original.  In this case the owner name becomes that	of
       the copying process and any linking relationship with other files is lost.

See Also
       cp(1), ln(1)

																	     mv(1)
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