You are right, seems I have to write a customized function to get the returning status, like
Code:
function rt_status()
{
eval "$1"
return $?
}
then I can use the function like the following
Code:
if [[ rt_status "grep pattern file_name" -eq 0 ]]
then
echo "pattern matched"
elif [[ rt_status "grep pattern file_name" -eq 1 ]]
then
echo "Pattern unmatched"
elif [[ rt_status "grep pattern file_name" -eq 2 ]]
then
echo "file_name not existed"
fi
See, just want to know if there is a system built-in function to replace my rt_status function to return the status of the execution for a command? I am not willing to fetch that status by $?
Last edited by Scott; 07-21-2010 at 03:15 AM..
Reason: Code tags...
I have a file called get_columns.sh that I would like to replace $2 with $3. I have the following sed command written that works
sed s/'$3'/'$2'/g get_columns.sh > output.txt
However, when I try the command below, the file is empty.
sed s/'$3'/'$2'/g get_columns.sh > get_columns.sh
... (2 Replies)
I am looking for all the header files (*.h).. which as per documentation of the UNIX system shouldbe there.
I am using
find / -name *.h -print
But it does't give anything.
My question is under what condition the "find" condition will fail to find the file?
What is the work around.
... (4 Replies)
Below is a chuck of a shell script I have written. The problem I am having is with the test section. I want to test the status of the f60gen command but since I'm running the output of the f60gen command into tee, the test command is actually testing "tee" and not "f60gen". Is there a way to... (5 Replies)
Hello all,
I develop an ERP application that runs on a number of *nix flavors. This application had been around for quite a number of years.
As part of the application launch, we do a check for a background process using the following command:
ps -ef | grep -v grep | grep mi\/ba | grep... (6 Replies)
Hi
i have done a copy operation (Storing one content of a file to another)
For example :
cp Fileone Filetwo
Now is it possible to know the status of the execution of that command ??
Without manually checking the Filetwo contents ??
Thanks in advance . (5 Replies)
Hi
there is below code in my code , i did not understand what does it mean
RC=0
RC=$(( RC | $? ))
Please help me regarding this
---------- Post updated at 02:22 AM ---------- Previous update was at 01:46 AM ----------
Below is more example of the code (2 Replies)
Hi,
Want to log the output of command & check the exit status to find whether it succeeded or failed.
> ls abc
ls: abc: No such file or directory
> echo $?
1
> ls abc 2>&1 | tee log
ls: abc: No such file or directory
> echo $?
0
Tee commands changes my exit status to be always... (7 Replies)
Hi All,
I am doing an export and import (datapump) of 4 schema. I know we can do an export of 4 schema in one command. But just want to know how to check the exit status if i do the export/import of 4 schema in different commands in background. Please suggest.
Thanks,
Mani (1 Reply)
Hi All,
I am using RHEL 6 linux in my lab server and I am new to RHEL6 features.
lab1:root> uname -a
Linux lab1 2.6.32-358.18.1.el6.x86_64 #1 SMP Fri Aug 2 17:04:38 EDT 2013 x86_64 x86_64 x86_64 GNU/Linux
I am facing a peculiar issue in my lab machine. When I connected via Opsware Global... (0 Replies)
Discussion started by: go2suresh1979
0 Replies
LEARN ABOUT HPUX
realpath
realpath(3X)realpath(3X)NAME
realpath - resolve pathname
SYNOPSIS DESCRIPTION
The function derives, from the pathname pointed to by file_name, an absolute pathname that names the same file, whose resolution does not
involve or symbolic links. The generated pathname is stored, up to a maximum of bytes, in the buffer pointed to by resolved_name.
RETURN VALUE
On successful completion, returns a pointer to the resolved name. Otherwise, returns a null pointer and sets errno to indicate the error,
and the contents of the buffer pointed to by resolved_name are undefined.
ERRORS
The function will fail if:
Read or search permission was denied for a component of
file_name.
Either the file_name or resolved_name argument is a null pointer.
An error occurred while reading from the file system.
Too many symbolic links were encountered in resolving
path.
The file_name argument is longer than or a pathname component is longer than
A component of file_name does not name an existing file or file_name points to an empty string.
A component of the path prefix is not a directory.
The function may fail if:
Pathname resolution of a symbolic link produced an intermediate result whose
length exceeds
Insufficient storage space is available.
SEE ALSO sysconf(2), getcwd(3C), thread_safety(5), glossary(9), <stdlib.h>.
CHANGE HISTORY
First released in Issue 4, Version 2.
realpath(3X)