Standard out and standard error Post: 302437849

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redirect standard error into log file

Hi, I am new in shell scripting. Can anyone point out what wrong of below script. If I want the error output to "sqlerror.log" and database pool data output to "bulk_main.dat". Right now, the below script, if successful execute, the data will output to bulk_main.dat && sqlerror.log both...

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Writing to Standard Error

Hi. I'm working on a project for a class, and there's one part of the project that is confusing me. It's a compression and decompression project, and after we write our code for compression, we need to write to standard error. (1) Size of original file (number of characters read...

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redirect only the standard error output to mail

I'm writing a script using file descriptor 2 (std error) to send an email only if the command fails or errors out but the script always emails me irrepective of whether it fails or not. It will not email the /tmp/check.error file output if doesn't error out just the mail with the subject "Cannot...

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[BASH] redirect standard error and use it inside

Hi all, Maybe my question is too simple but till now i couldn't figure about a solution :( I have a bash script scheduled in cron: <cron time parameters> my_script.sh > result.log 2>&1 By this way i can have standard output and standard error in my result.log file Now i want my script...

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standard error to standard out question

Hi there how can i get the result of a command to not give me its error. For example, on certain systems the 'zfs' command below is not available, but this is fine becaues I am testing against $? so i dont want to see the message " command not found" Ive tried outputting to /dev/null 2>&1 to no...

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Redirect standard error to input of other process, 2| ?

Hello, I would like to know if there is a shell in which operations such as 2| (redirect standard error of one process to the standard input of another one) exist? I know it is possible to do it in bash with things like: (process 2>&1) | other_process but I find it a bit intricate when...

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Writing to standard error

Hi, I want to redirect the standard output to standard error whenever an error occurs for ex if then echo right else echo wrong fi I want to redirect the wrong to stderror .Adding a line 1>&2 will do that or is additional code to be added.How can i verify whether the output...

8. UNIX for Dummies Questions & Answers

Redirect Standard output and standard error into spreadsheet

Hey, I'm completely new at this and I was wondering if there is a way that I would be able to redirect the log files in a directories standard output and standard error into and excel spreadsheet in anyway? Please remember don't use too advanced of terminology as I just started using shell...

9. Shell Programming and Scripting

Redirecting standard error issues.

Hello Friends, Good Day. I am trying to redirect a standard error to the bit bucket(/dev/null) but it is not working. Though, it is working fine in redirecting the standard output. Below is the output of my script without any redirection: $ ./CheckVSSLocks.sh...

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Handling standard error in condition

Testing this with KSH on RHEL The bellow code works but i can't seem to handle the exit status of the unix command when it fails... i wanted to put something like >/dev/null 2>&1 to manage standard output and standard error but it changes my logic and the code doesn't work cause it doesn't...

LEARN ABOUT BSD

uname

UNAME(1)						      General Commands Manual							  UNAME(1)

NAME

       uname - display information about the system

SYNOPSIS

       uname [-amnrsv]

DESCRIPTION

       The  uname  command  writes the name of the operating system implementation to standard output.	When options are specified, strings repre-
       senting one or more system characteristics are written to standard output.

       The options are as follows:

       -a	 Behave as though the options -m, -n, -r , -s, and -v were specified.

       -m	 Write the type of the current hardware platform to standard output.

       -n	 Write the name of the system to standard output.

       -r	 Write the current release level of the operating system to standard output.

       -s	 Write the name of the operating system implementation to standard output.

       -v	 Write the version level of this release of the operating system to standard output.

       If the -a flag is specified, or multiple flags are specified, all output is written on a single line, separated by spaces.

       The uname utility exits 0 on success, and >0 if an error occurs.

SEE ALSO

       sysctl(8), sysctl(3), uname(3)

HISTORY

       The uname command appeared in 4.4BSD.

STANDARDS

       The command is expected to conform to the IEEE Std1003.2 (``POSIX'') specification.

4th Berkeley Distribution					 February 4, 1995							  UNAME(1)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

redirect standard error into log file

Discussion started by: epall

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Writing to Standard Error

Discussion started by: sjung10

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redirect only the standard error output to mail

Discussion started by: barkath

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[BASH] redirect standard error and use it inside

Discussion started by: Pescator