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1. Shell Programming and Scripting
We use Redhat server , we always use mailq to check any pending mail in mailq , when run the command mailq , it shows all existing pending mail would advise how to write a script to show the pending mails which are older than 24 hours , ( if possible , then send this pending mail info to... (9 Replies)
Discussion started by: ust3
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2. Shell Programming and Scripting
I know the command mailq can check the pending mail in mqueue , and also have another command to check POSIX mail queue in server , now I will regularly check the mqueue manually , it is time consuming , would advise the script that could help to check the mail queue , and then send the details to... (3 Replies)
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3. Shell Programming and Scripting
Hi,
I've to wait until a file generated and once its generated, source another script in Linux terminal.
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4. Solaris
The system is a SunFire V440 running SunOS 5.10
About once every 3-4 weeks, the system will reboot into single user mode on its own, and then I run svcs -xv, the filesystem service and dependent services will be disabled due to the metadisk file system being corrupted.
The I've been doing... (2 Replies)
Discussion started by: the.gooch
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5. UNIX for Advanced & Expert Users
I want to check the mail attachement size before sending the mail.
I coded:
IF FILESIZE > XBYTES THEN
MESSAGE "Mail attachment size exceeds limit"
ELSE
SEND MAIL.
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into a variable, now,... (1 Reply)
Discussion started by: harishkumardola
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6. Shell Programming and Scripting
Hey,
I am trying to check if an integer is even in a tcsh script
This is what I am running now
set lattest = ` echo $latmin "%2" | bc -l `
echo $lattest
if ( $lattest == 0 ) then
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else if ( $lattest =! 0 ) then
set latmin = ` echo $latmin "+1" |... (2 Replies)
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7. Shell Programming and Scripting
Hi - I am trying to send email from unix box but none were delivered. I have tried multiple commands like mailx, mail or sendmail. But none of them worked. can you please let me know how to check if I have the right permissions to send the mail or not? (1 Reply)
Discussion started by: ahmedwaseem2000
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8. UNIX for Dummies Questions & Answers
hi
can i know how to view(read) my mail in unix :( (4 Replies)
Discussion started by: babu@shell
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9. Shell Programming and Scripting
Hi,
I'd like to somehow schedule a task on my webserver, such that my account's mail is checked every 10-15 minutes and:
a) any new e-mails received from a particular address are POST-ed to a PHP webpage on my server.
b) any new e-mails received from a different particular address are... (2 Replies)
Discussion started by: stujones
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10. Shell Programming and Scripting
how can I check mail quota, and then how can I send mail to user whose quota get full??? :confused:
For this which script must I use? (8 Replies)
Discussion started by: emreatlier
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runat(1) User Commands runat(1)
NAME
runat - execute command in extended attribute name space
SYNOPSIS
/usr/bin/runat file [command]
DESCRIPTION
The runat utility is used to execute shell commands in a file's hidden attribute directory. Effectively, this utility changes the current
working directory to be the hidden attribute directory associated with the file argument and then executes the specified command in the
bourne shell (/bin/sh). If no command argument is provided, an interactive shell is spawned. The environment variable $SHELL defines the
shell to be spawned. If this variable is undefined, the default shell, /bin/sh, is used.
The file argument can be any file, including a directory, that can support extended attributes. It is not necessary that this file have any
attributes, or be prepared in any way, before invoking the runat command.
OPERANDS
The following operands are supported:
file Any file, including a directory, that can support extended attributes.
command The command to be executed in an attribute directory.
ERRORS
A non-zero exit status will be returned if runat cannot access the file argument, or the file argument does not support extended
attributes.
USAGE
See fsattr(5) for a detailed description of extended file attributes.
The process context created by the runat command has its current working directory set to the hidden directory containing the file's
extended attributes. The parent of this directory (the ".." entry) always refers to the file provided on the command line. As such, it may
not be a directory. Therefore, commands (such as pwd) that depend upon the parent entry being well-formed (that is, referring to a direc-
tory) may fail.
In the absence of the command argument, runat will spawn a new interactive shell with its current working directory set to be the provided
file's hidden attribute directory. Notice that some shells (such as zsh and tcsh) are not well behaved when the directory parent is not a
directory, as described above. These shells should not be used with runat.
EXAMPLES
Example 1: Using runat to list extended attributes on a file
example% runat file.1 ls -l
example% runat file.1 ls
Example 2: Creating extended attributes
example% runat file.2 cp /tmp/attrdata attr.1
example% runat file.2 cat /tmp/attrdata > attr.1
Example 3: Copying an attribute from one file to another
example% runat file.2 cat attr.1 | runat file.1 "cat > attr.1"
Example 4: Using runat to spawn an interactive shell
example% runat file.3 /bin/sh
This spawns a new shell in the attribute directory for file.3. Notice that the shell will not be able to determine what your current direc-
tory is. To leave the attribute directory, either exit the spawned shell or change directory (cd) using an absolute path.
Recommended methods for performing basic attribute operations:
display
runat file ls [options]
read
runat file cat attribute
create/modify
runat file cp absolute-file-path attribute
delete
runat file rm attribute
permission changes
runat file chmod mode attribute
runat file chgrp group attribute
runat file chown owner attribute
interactive shell
runat file /bin/sh
or set your $SHELL to /bin/sh and
runat file
The above list includes commands that are known to work with runat. While many other commands may work, there is no guarantee that any
beyond this list will work. Any command that relies on being able to determine its current working directory is likely to fail. Examples of
such commands follow:
Example 5: Using man in an attribute directory
example% runat file.1 man runat
getcwd: Not a directory
Example 6: Spawning a tcsh shell in an attribute directory
example% runat file.3 /usr/bin/tcsh
tcsh: Not a directory
tcsh: Trying to start from "/home/user"
A new tcsh shell has been spawned with the current working directory set to the user's home directory.
Example 7: Spawning a zsh shell in an attribute directory
example% runat file.3 /usr/bin/zsh
example%
While the command appears to have worked, zsh has actually just changed the current working directory to '/'. This can be seen by using
/bin/pwd:
example% /bin/pwd
/
ENVIRONMENT VARIABLES
SHELL Specifies the command shell to be invoked by runat.
EXIT STATUS
The following exit values are returned:
125 The attribute directory of the file referenced by the file argument cannot be accessed.
126 The exec of the provided command argument failed.
Otherwise, the exit status returned is the exit status of the shell invoked to execute the provided command.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|CSI |Enabled |
+-----------------------------+-----------------------------+
|Interface Stability |Evolving |
+-----------------------------+-----------------------------+
SEE ALSO
open(2), attributes(5), fsattr(5)
NOTES
It is not always obvious why a command fails in runat when it is unable to determine the current working directory. The errors resulting
can be confusing and ambiguous (see the tcsh and zsh examples above).
SunOS 5.10 22 Jun 2001 runat(1)