02-02-2006
$$ is nothing but a process id
The funda behind using $$ infront of file name is, if two people executing the same script, it won't overwrite others and end...
I'm just starting the file name with the process id... assuming the file will be unique if I include the process id in the file name...
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Dear All:
I want to send a message to a list of people with a subject and an attachement, currently I am using the following command into a shell script:
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Hi all,
I am a newbie to unix.
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------------Code---------------------------
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Hi All,
I have general query that ...in my script i used uuencode
option like below.
cd /location
(cat test.txt
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./testscript.sh: uuencode not found:
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Hi ,
I am using the below code to send mail through a script which run as a cron job.
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daemail=$(cat <<!
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Subject: $subject
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$priority
$CONTENT
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Hello,
I am able to attache the file in UNIX/LINUX script using following code.
MAILFORMAT="Please do not replay this mail.This mail is auto generated."
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LEARN ABOUT NETBSD
setsid
SETSID(2) BSD System Calls Manual SETSID(2)
NAME
setsid -- create session and set process group ID
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <unistd.h>
pid_t
setsid(void);
DESCRIPTION
The setsid() function creates a new session. The calling process is the session leader of the new session, is the process group leader of a
new process group and has no controlling terminal. The calling process is the only process in either the session or the process group.
Upon successful completion, the setsid() function returns the value of the process group ID of the new process group, which is the same as
the process ID of the calling process.
ERRORS
If an error occurs, setsid() returns -1 and the global variable errno is set to indicate the error, as follows:
[EPERM] The calling process is already a process group leader, or the process group ID of a process other than the calling process
matches the process ID of the calling process.
SEE ALSO
getsid(2), setpgid(2), tcgetpgrp(3), tcsetpgrp(3)
STANDARDS
The setsid() function conforms to ISO/IEC 9945-1:1990 (``POSIX.1'').
BSD
April 4, 2011 BSD