To check whether the file is empty or not in shell script (sh) Post: 302963501

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to check for empty file in Perl?

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...

2. UNIX for Dummies Questions & Answers

How to check if a file is empty?

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...

3. UNIX for Dummies Questions & Answers

to check if file is empty or not and return a non zero value

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.

4. Shell Programming and Scripting

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?

5. Shell Programming and Scripting

Bash-Shell: If-Clause to check if file is empty

Hello, I want to checkl whether my file has text in it or not. if ; then ... if ; then ... But none of these work Can someone help me? ---------- Post updated at 09:00 AM ---------- Previous update was at 08:55 AM ---------- The code-tags caused an displayerror,...

6. Shell Programming and Scripting

Need to check for empty file in C shell script

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.

7. Shell Programming and Scripting

Check if a text file is empty or not (using ls -s)

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...

8. Shell Programming and Scripting

perl script to check if empty files are created and delete them and run a shell script

I have a local linux machine in which the files are dumped by a remote ubuntu server. If the process in remote server has any problem then empty files are created in local machine. Is there any way using perl script to check if the empty files are being created and delete them and then run a shell...

9. Shell Programming and Scripting

Empty file check

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...

10. Web Development

Javascript to check field is empty then execute rest of script

I have found this bit of code that nearly does what I want. Basically 3 input fields, I want to copy t2 to t3 as it's typed but only if t1 contains data AND t3 is empty: <input type="text" id="t1" /> <input type="text" id="t2" /> <input type="text" id="t3" /> <script> var t2 =...

LEARN ABOUT REDHAT

variable

variable(n)						       Tcl Built-In Commands						       variable(n)

__________________________________________________________________________________________________________________________________________________

NAME

       variable - create and initialize a namespace variable

SYNOPSIS

       variable ?name value...? name ?value?
_________________________________________________________________

DESCRIPTION

       This  command  is  normally used within a namespace eval command to create one or more variables within a namespace.  Each variable name is
       initialized with value.	The value for the last variable is optional.

       If a variable name does not exist, it is created.  In this case, if value is specified, it is assigned to the newly created  variable.	If
       no  value  is  specified,  the new variable is left undefined.  If the variable already exists, it is set to value if value is specified or
       left unchanged if no value is given.  Normally, name is unqualified (does not include the names of  any	containing  namespaces),  and  the
       variable  is  created in the current namespace.	If name includes any namespace qualifiers, the variable is created in the specified names-
       pace.  If the variable is not defined, it will be visible to the namespace which command, but not to the info exists command.

       If the variable command is executed inside a Tcl procedure, it creates local variables linked to the corresponding namespace variables (and
       therefore  these  variables are listed by info locals.)	In this way the variable command resembles the global command, although the global
       command only links to variables in the global namespace.  If any values are given, they are used to modify the  values  of  the	associated
       namespace variables.  If a namespace variable does not exist, it is created and optionally initialized.

       A name argument cannot reference an element within an array.  Instead, name should reference the entire array, and the initialization value
       should be left off.  After the variable has been declared, elements within the array can be set using ordinary set or array commands.

SEE ALSO

       global(n), namespace(n), upvar(n)

KEYWORDS

       global, namespace, procedure, variable

Tcl									8.0							       variable(n)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to check for empty file in Perl?

Discussion started by: deepakwins

2. UNIX for Dummies Questions & Answers

How to check if a file is empty?

Discussion started by: shreekrishnagd

3. UNIX for Dummies Questions & Answers

to check if file is empty or not and return a non zero value

Discussion started by: mavesum

4. Shell Programming and Scripting

check if file is empty

Discussion started by: stolz