09-24-2005
check if file is empty
How do I check if a file is empty in a sh script
I want to test in my shell script if the output file is empty and if it is do one thing and if it isnt empty do another?
any ideas?
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
May I know how to check for empty file in Perl.
Iam missing something, somewhere.
#!/usr/bin/perl
my $open_dir = '/path/';
my $file;
my $ma = "abc_.*.\.psv\$"
opendir(VAR, $open_dir) or die "Can't open $oepn_dir: $!\n";
while( defined ($file = readdir VAR) ) #read all... (1 Reply)
Discussion started by: deepakwins
1 Replies
2. UNIX for Dummies Questions & Answers
Hi Masters.....
I have problem !!!
I need to check number of records in a file and if it is zero or file is empty i need to do some task.
if ; then
echo "File s empty"
else
echo "Not empty"
fi
so how to check this condition.
I used wc -l < filename.txt => 1 for zero records
same result... (1 Reply)
Discussion started by: shreekrishnagd
1 Replies
3. UNIX for Dummies Questions & Answers
Hi All,
I am new to unix worldd .
I need to check a file1 if its empty or not.
If its empty then return a non zero value say 99
could you pls let me know the perl script for this. (2 Replies)
Discussion started by: mavesum
2 Replies
4. Shell Programming and Scripting
I am running a C shell script. I have an output file from a previous step and I need to run "something" in the next step to check if the file is empty. If the file is empty, then the job script should finish EOJ. If the file is not empty then the job script should abend.
Please help
Thanks. (4 Replies)
Discussion started by: jclanc8
4 Replies
5. Shell Programming and Scripting
Hello,
I want to make a script which says if a text file is empty or not.
I tried two ways of making it, but I have problems with both of them.
Now I think that the better way is the ls -s solution (considering that an empty text file has a 0 weight, because "cat file.txt" fails when file is... (4 Replies)
Discussion started by: Link_
4 Replies
6. Shell Programming and Scripting
CMD=$(find "${Release_Container}" -iname "${Release_Name}"_Release.txt)
for i in `cat $CMD`
do
if ];then
cd ${Sandbox_dir}
CMD1=$(find "${Sandbox_dir}"/* -iname "${Release_Name}" -type d | awk -F/ '{print $(NF)}' | head -1 )
if ];then
echo -e "################### CHECKOUT START... (2 Replies)
Discussion started by: anuragpgtgerman
2 Replies
7. UNIX for Dummies Questions & Answers
Hello again!
I have some trouble with scripting in bash.
In the following script I read from a folder with the files
line0_Ux.xy
line1_Ux.xy
line2_Ux.xy
.
.
.
Some of the files are empty. For those I would like to print a "0" in list.
I think the problem with the code is that... (4 Replies)
Discussion started by: bjoern456
4 Replies
8. Shell Programming and Scripting
Hi gurus ,
I have two files and i want to perform different action based on the condition if both or either is empty
If
then
Do something
elif
then
do something
elif
then
do something
else
do something
fi
I have tried the below bt its not... (4 Replies)
Discussion started by: r_t_1601
4 Replies
9. Shell Programming and Scripting
Hi,
I am using KSH.
I am trying to check if the output file is empty or not.
I tried with ] but what i see is my file is empty but still manages to have a size of 1 instead of 0.
But my file doesnot have anything its empty.
I am not sure how to check this.
can any one help? (10 Replies)
Discussion started by: Sharma331
10 Replies
10. Shell Programming and Scripting
Hi All,
I need to check a file whether it exists and also whether it is empty or not. I have a code for this but it is not working as per my requirement. Can anyone pls suggest me on this.
function funcFLSanityCheck
{
if
then
echo "${varFLSentFileListPath}/${varFLSentFileName}... (7 Replies)
Discussion started by: Arun1992
7 Replies
XOSD(1xosd) XOSD(1xosd)
NAME
osd_cat - X on-screen file displayer
SYNOPSIS
osd_cat [OPTION] [FILE]...
osd_cat -b percentage|slider [OPTION]
DESCRIPTION
Display FILE, or standard input, on X screen.
-p, --pos=POS
This option tells osd_cat where to display the text. POS can be top, middle, or bottom. The default is top.
-o, --offset=OFFSET
This option specifies the offset from the top or bottom of screen the text is displayed. The default is 0.
-A, --align=ALIGN
This option tells osd_cat where to display the text. ALIGN can be left, right or center. The default is left.
-i, --indent=OFFSET
This option specifies the INDENT from the left of screen the text is displayed. The default is 0.
-f, --font=FONT
This option specifies the FONT to be used for displaying the text. The default is fixed.
-c, --color=COLOR
This option specifies the COLOR to be used for displaying the text. The default is red.
-d, --delay=TIME
This option specifies the number of seconds the text is displayed. The default is 5 seconds.
-l, --lines=LINES
This option specifies the number of LINES to scroll the display over. The default is 5.
-s, --shadow=OFFSET
This option specifies the OFFSET of the text shadow. The default is 0, which means no text shadow is created.
-a, --age[=SCROLL_AGE]
This option affects screen redrawing. If SCROLL_AGE seconds pass before a new line is ready (for example, you're reading from a
pipe), all lines are cleared at once instead of being scrolled off as new lines replace old lines. The default is 0.
When no SCROLL_AGE is explicitly given, the current value from DELAY is used.
-w, --wait
This option also affects screen redrawing. When there is data ready to be put on screen, this option will cause osd_cat to wait
until the display is clear. An alternative to scrolling.
-b, --barmode=TYPE
Lets you display a percentage or slider bar instead of just text. TYPE may be percentage or slider. In this mode no text is read
from any file, but the following options can be used:
-P, --percentage=PERCENTAGE
This option specified the position of the percentage / slider bar. PERCENTAGE may be in the range from 0 to 100, the default is 50.
-T, --text=TEXT
This option specifies an optional TEXT which gets displayed above the percentage bar. The default is empty, so no additional text
is displayed.
-h, --help
display help (which is often more up to date) and exit
With no FILE, or when FILE is -, read standard input.
AUTHOR
Martijn van de Streek <martijn@foodfight.org>, Some patching done by Malcolm Valentine <farkit@iprimus.com.au> and Tim Wright
<tim@ignavus.net>.
xosd was written by Andre Renaud <andre@ignavus.net> and is maintained by Tim Wright <tim@ignavus.net>
SEE ALSO
More information on the X OSD Library and its author can be found on http://www.ignavus.net/software.html
<http://www.ignavus.net/software.html>
COPYRIGHT
It is distributed under the GNU General Public License.
X OSD cat January 2001 XOSD(1xosd)