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)
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)
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? (8 Replies)
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)
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)
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 $(NF)}' | head -1 )
if ];then
echo -e "################### CHECKOUT START... (2 Replies)
Hello again!
I have some trouble with scripting in bash.
In the following script I read from a folder with the files
line0_Ux.xy
line1_Ux.xy
line2_Ux.xy
.
.
.
Some of the files are empty. For those I would like to print a "0" in list.
I think the problem with the code is that... (4 Replies)
Hi,
I have a shell script where I am trying to unzip bunch of files zip files one by one. But out of many zip files, if any one zip file is empty, the unzip command sends a non-zero return code and fails the script.
I am trying to see if I can get a success error code even if the script... (2 Replies)
Hi gurus ,
I have two files and i want to perform different action based on the condition if both or either is empty
If
then
Do something
elif
then
do something
elif
then
do something
else
do something
fi
I have tried the below bt its not... (4 Replies)
Hi All,
I need to check a file whether it exists and also whether it is empty or not. I have a code for this but it is not working as per my requirement. Can anyone pls suggest me on this.
function funcFLSanityCheck
{
if
then
echo "${varFLSentFileListPath}/${varFLSentFileName}... (7 Replies)
Discussion started by: Arun1992
7 Replies
LEARN ABOUT DEBIAN
liquidsoap
LIQUIDSOAP(1) General Commands Manual LIQUIDSOAP(1)NAME
liquidsoap - a multimedia streaming language
SYNOPSIS
liquidsoap [options] [script|expression]
DESCRIPTION
Liquidsoap is a programming language for describing multimedia streaming systems. It is very flexible, making simple things simple but
giving a lot of control for advanced uses. Liquidsoap supports audio, video and MIDI streams, and a wide range of input/output operators
including Icecast and various soundcard APIs. It can perform a broad range of signal processing, combine streams in various ways, support
custom transitions, generate sound procedurally... and all this can be assembled as you wish. Input files can be accessed remotely, or
even be synthesized on the fly using external scripts such as speech synthesis. Finally, interaction with a running liquidsoap instance is
possible via telnet or socket.
Liquidsoap scripts passed on the command line will be evaluated: they shall be used to define the streaming system to be ran. It is possi-
ble to pass multiple scripts; they will all be ran successively, and definitions from one script can be used in subsequent ones. A script
will be read from standard input if - is given as script filename. Information about scripting liquidsoap is available on our website:
http://savonet.sf.net/
If the parameter is not a file it will be treated as an expression which will be executed. It is a convenient way to test simple one-line
scripts. When running only one-liners, the default is to log messages directly on stdout rather than to a file.
OPTIONS -
Read script from standard input.
-- Stop parsing the command-line and pass subsequent items to the script.
--debug
Print debugging log messages.
--dynamic-plugins-dir path
Directory where to look for plugins.
--errors-as-warnings
Issue warnings instead of fatal errors for unused variables and ignored expressions. If you are not sure about it, it is better to
not use it.
--interactive
Start an interactive interpreter.
--list-plugins
List all plugins (builtin scripting values, supported formats and protocols).
--list-plugins-xml
List all plugins (builtin scripting values, supported formats and protocols), output as XML.
--no-pervasives
Do not load pervasive script libraries.
--version
Display liquidsoap's version.
-c, --check
Check and evaluate scripts but do not perform any streaming.
-cl, --check-lib
Like --check but treats all scripts and expressions as libraries, so that unused toplevel variables are not reported.
-d, --daemon
Run in daemon mode.
-f, --force-start
For advanced dynamic uses: force liquidsoap to start even when no active source is initially defined.
-h plugin
Print the description of a plugin, eg. a builtin scripting function.
-i Display infered types.
-p, --parse-only
Parse scripts but do not type-check and run them.
-q, --quiet
Do not print log messages on standard output.
-r filename
Process a request.
-T, --disable-telnet
Disable the telnet server.
-U, --disable-unix-socket
Disable the unix socket.
-t, --enable-telnet
Enable the telnet server.
-u, --enable-unix-socket
Enable the unix socket.
-v, --verbose
Print log messages on standard output.
--conf-descr-key key
Describe a configuration key.
--conf-descr
Show all configuration keys with their documentation.
--conf-descr-liqi
Show all configuration keys with their documentation in liqi (documentation wiki) format.
--conf-dump
Dump the configuration state
-help, --help
Display this list of options
SEE ALSO
Our website http://savonet.sf.net/ and the HTML documentation coming with your distribution of liquidsoap.
AUTHOR
Savonet team <savonet-users@lists.sourceforge.net>
Liquidsoap 1.0.1 June 25, 2012 LIQUIDSOAP(1)