07-12-2008
Error Handling -pls advice
Thanks for inputs,
Using -f , actually I am checking for presence of the zip file
If present , then only I proceed further
10 More Discussions You Might Find Interesting
1. Programming
hi everyone
i have a problem in design as follows:
there is a structured file ,for example ,
field 1, field 2 .......
--------------
--------------
i read it into my memory ,there are some change in the memory
maybe add some record or change one field in an existing record.
i am going... (1 Reply)
Discussion started by: benbenpig
1 Replies
2. Shell Programming and Scripting
Helo Experts,
I need a help in handling errors in shell script, wants my errors displayed in text file instead of command window..
My shell script is here;
cd /cygdrive/s/Files
for FILES in ./*.*
do
temp=`basename $FILES`
if cp $FILES /cygdrive/r/CopyFile1/$FILES; then
echo "copy... (5 Replies)
Discussion started by: CelvinSaran
5 Replies
3. Programming
I have some unstable mistake in my program and out-of-idea how to catch it.
I am looking for advice with a way to work it out!
I have in a pretty complicated program (but one source file) set of int-counters - 15, if exactly.
Lately, on final printout I have inpossible value (I am... (3 Replies)
Discussion started by: alex_5161
3 Replies
4. Shell Programming and Scripting
#!/bin/bash
while :
do
clear
echo ""***************************************"
echo "* - MAIN - MENU - *"
echo "***************************************"
echo "* 1. Directory Listing *"
echo "* 2. Users Currently Logged In *"
echo "* 3. Create a... (2 Replies)
Discussion started by: celtic123
2 Replies
5. Red Hat
Hi All,
I have a CentOS operating system installed. I work with really huge number of files which are not only huge in number but some of them really huge in size. Minimum number of files could be 1 million to 2 million in one directory itself. Some of the files are even several Gigabytes in... (2 Replies)
Discussion started by: shoaibjameel123
2 Replies
6. Shell Programming and Scripting
Below code works for different databases i.e. MYSQL and ORACLE
The problem is for MYSQL in Block: if ; $? taking value accordingly but in case of ORACLE $? is always taking this value as zero (0).
That is the reason in Oracle it always going in else Block in any case.. :(
and in case of ... (4 Replies)
Discussion started by: ambarginni
4 Replies
7. Shell Programming and Scripting
Hello fellow UNIX gurus :)
I have a problem regarding the script below:
# Variables used in this shell.
power=0 # Stores squared integer
total=0 # Sum of all squared integers
num=0 # Stores command line arguements
# Provides error handling if command line... (5 Replies)
Discussion started by: Learn4Life
5 Replies
8. Shell Programming and Scripting
HI All,
Whenever I write a shell script I always check if a command got executed successfully, even for the commands like cd, mv, rm and others, and even for the cases when there is ALMOST nothing to stop this commands from executing with success. so I am wondering if it is an overkill. I am... (1 Reply)
Discussion started by: rdogadin
1 Replies
9. Shell Programming and Scripting
I am working on a shell script where after making sftp connection to a remote server the file are being transferred. The problem is how to capture return code for the file which is missing at the remote location. I have tried to capture the return code which return value of "0" even the transfer of... (4 Replies)
Discussion started by: Khan28
4 Replies
10. UNIX for Beginners Questions & Answers
Hi Folks -
I want to add error handling to a portion of a *.ksh, but I'm having difficulty doing so in an easily digestible way.
Essentially, I want to echo weather it was successful or unsuccessful after each command.
Here is the code I need to add error handling to:
perl... (2 Replies)
Discussion started by: SIMMS7400
2 Replies
LEARN ABOUT HPUX
posix_fadvise64
posix_fadvise(2) System Calls Manual posix_fadvise(2)
NAME
posix_fadvise(), posix_fadvise64() - file advisory information
SYNOPSIS
Parameters
fd The open file descriptor to which the fadvise operation applies.
offset The begining of the specified range as a positive, byte offset.
len The length of the specified range in bytes.
advice Specifies advice to be applied to range.
DESCRIPTION
The function is used to advise the system about the expected behavior of the application with respect to the data in the file associated
with the open file descriptor, fd, starting at offset and continuing for len bytes. The specified range need not currently exist in the
file. If len is zero, all data following offset is specified.
It should be noted that the effect of all hints is cumulative for a given file object. All hints will be removed on processing the last
close of the file object.
The function may be used for large file access by a 32-bit application built with set to 64.
The advice parameter is used to convey the hint to be applied to the data and may be one of the following values:
Specifies that the application has no advice to give on its behavior with respect to the specified data. It is the default characteristic
if no advice is given for an open file.
Specifies that the application expects to access the specified range of data
sequentially from the lower offsets to higher offsets.
Specifies that the application will expect to access the specified
specified range of data in a random order.
Specifies that the application will expect to access the specified
range of data in the near future.
Specifies that the application will expect that it will not
access the specified range of data in the near future.
Specifies that the application will expect to access the specified range
of data once and then not reuse it thereafter.
These values will be defined in
RETURN VALUE
Successful completion.
Failure.
is set to indicate the error.
ERRORS
If the service fails, is set to one of the following values:
The fd argument is not a valid file descriptor.
The fd argument is associated with a pipe or FIFO.
The posix_fadvise operation is not supported by the underlying file system.
The value of advice or one of the other input values has been found to be invalid.
A designated hint is not supported by the underlying file object.
EXAMPLES
AUTHOR
was derived by HP from the IEEE POSIX 1003.1-2001 Standard.
SEE ALSO
fadvise(2), fcntl(2), fadvise(5), fcntl(5).
STANDARDS CONFORMANCE
posix_fadvise(2)