test file empty Post: 302361402

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if test for empty and non-existing file

How to write this condition in ksh? if myfile is empty or myfile does not exist then do action1 fi is this OK? if ] -o ] then then do action1 fi Thanks.

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How do I check to make sure a file is not zero bytes? Something like: if then ?????

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What's wrong with this line: if ${TEST:?} ; then echo empty; fi

I want to print "empty" if $TEST is empty. TEST= if ${TEST:?} ; then echo empty; fi But it doesn't work. What's wrong?

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Trying to empty file using > but the file size increasing when next append

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awk to reformat output if input file is empty, but not if file has data in it

The below awk improved bu @MadeInGermany, works great as long as the input file has data in it in the below format: input chrX 25031028 25031925 chrX:25031028-25031925 ARX 631 18 chrX 25031028 25031925 chrX:25031028-25031925 ARX 632 14...

LEARN ABOUT OPENSOLARIS

echo

echo(3XCURSES)						  X/Open Curses Library Functions					    echo(3XCURSES)

NAME

       echo, noecho - enable/disable terminal echo

SYNOPSIS

       cc [ flag... ] file... -I /usr/xpg4/include  -L	/usr/xpg4/lib 
	-R  /usr/xpg4/lib  -lcurses  [ library... ]

       c89 [ flag... ] file... -lcurses [ library... ]

       #include <curses.h>

       int echo(void);

       int noecho(void);

DESCRIPTION

       The  echo()  function enables Echo mode for the current screen. The noecho() function disables Echo mode for the current screen. Initially,
       curses software echo mode is enabled and hardware echo mode of the tty driver is disabled. The echo() and noecho() functions control  soft-
       ware echo only. Hardware echo must remain disabled for the duration of the application, else the behavior is undefined.

RETURN VALUES

       Upon successful completion, these functions return OK. Otherwise, they return ERR.

ERRORS

       No errors are defined.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Unsafe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       getch(3XCURSES), getstr(3XCURSES), initscr(3XCURSES), libcurses(3XCURSES), scanw(3XCURSES), attributes(5), standards(5)

SunOS 5.11							    5 Jun 2002							    echo(3XCURSES)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

if test for empty and non-existing file

Discussion started by: GNMIKE

2. Shell Programming and Scripting

File is not empty?

Discussion started by: lesstjm

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What's wrong with this line: if ${TEST:?} ; then echo empty; fi

Discussion started by: meili100

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Trying to empty file using > but the file size increasing when next append

Discussion started by: firdousamir