A few years ago I took a C programming class and used both Linux and FreeBSD as my operating systems and gcc as the compiler. I ran a Command-line utility to to capture what happened as I ran the code, the output was saved to a file that I specified when I ran the utility command (that I can't... (1 Reply)
I have the following line in my script:
$sftpcmd $rmthost <<COMMANDS>> $sftplog 2>&1
For some reason this is not capturing the errors from sftp, they go to the file attached to the cron entry
ie
mm hh dd MM * /myscript > cron.out
any idea why?
digital unix 4.0d (6 Replies)
Hello,
I would like to capture the password request of a process (like passwd or smbpasswd, ...) from a C/c++ program. My idea was to use pipes, but they capture only the stdout/stdin, not the request itself (e.g. "Enter password for user tom:" is not captured by pipes).
In other words, my... (1 Reply)
Hi,
I'm new to ksh - unix platform. I'm writing a small script which will search my current directory and will search for file names which it takes input from the users.
Here is the code I'm having.
1 #!/bin/ksh
2 echo "enter a file name to be searched in the current dir : "
3 read... (1 Reply)
Hi all, I'd like to capture the output from the 'top' command to monitor my CPU and Mem utilisation.Currently my command isecho date
`top -b -n1 | grep -e Cpu -e Mem` I get the output in 3 separate lines.Tue Feb 24 15:00:03
Cpu(s): 3.4% us, 8.5% sy .. ..
Mem: 1011480k total, 226928k used, ....... (4 Replies)
Greetings,
I need to capture the output of a Sybase stored procedure, inside my
shell script( k shell). Based on this output, I need to call another
perl script, with input arguments as the result set of the procedure
execution. I need to keep looping through and call the perl script, ... (2 Replies)
Hello,
We have an oracle database running on a Linux host (RHEL5)...I'm trying to run Oracle dbv (database verify utility) and capture its output to a file using the following syntax but the standart output does NOT get redirected to the file...
dbv blocksize=32768 ... (2 Replies)
Hello,
I unfortunately have a process that does two things, it returns an answer to me and then does a bunch of work that I would like to wait on. Here is a simple example:
#!/bin/bash
function p_w {
echo "poopy"
sleep 10
echo "scoop"
}
foo=$(p_w &)
sleep 1
echo "1... (7 Replies)
Hello All,
I'm writing a Bash Script and in it I execute a piped command within a Function I wrote and I can't seem to redirect the
stderr from the 1st pipe to stdout..?
I'm setting the output to an Array "COMMAND_OUTPUT" and splitting on newlines using this --> "( $(...) )". By putting... (6 Replies)
match_max 500000
set timeout 30
set outcome1 {}
set outcome2 {}
set inputfile C:\\Users\\Administrator\\Desktop\\inputfile.txt
send -i $con "\r";
expect -i $con "Desktop>" {
exp_send "type $inputfile \r"
}
set timeout 30
expect {
"Desktop>" { set outcome $expect_out(0,string);}... (3 Replies)
Discussion started by: cityprince143
3 Replies
LEARN ABOUT SUSE
cron
CRON(8) System Manager's Manual CRON(8)NAME
cron - daemon to execute scheduled commands (ISC Cron V4.1)
SYNOPSIS
cron [-l load_avg] [-n]
DESCRIPTION
Cron should be started from /etc/rc or /etc/rc.local. It will return immediately, so you don't need to start it with '&'. The -n option
changes this default behavior causing it to run in the foreground. This can be useful when starting it out of init.
Cron searches /var/spool/cron for crontab files which are named after accounts in /etc/passwd; crontabs found are loaded into memory. Cron
also searches for /etc/crontab and the files in the /etc/cron.d directory, which are in a different format (see crontab(5)). Cron then
wakes up every minute, examining all stored crontabs, checking each command to see if it should be run in the current minute. When execut-
ing commands, any output is mailed to the owner of the crontab (or to the user named in the MAILTO environment variable in the crontab, if
such exists).
Additionally, cron checks each minute to see if its spool directory's modtime (or the modtime on /etc/crontab) has changed, and if it has,
cron will then examine the modtime on all crontabs and reload those which have changed. Thus cron need not be restarted whenever a crontab
file is modified. Note that the Crontab(1) command updates the modtime of the spool directory whenever it changes a crontab.
Daylight Saving Time and other time changes
Local time changes of less than three hours, such as those caused by the start or end of Daylight Saving Time, are handled specially. This
only applies to jobs that run at a specific time and jobs that are run with a granularity greater than one hour. Jobs that run more fre-
quently are scheduled normally.
If time has moved forward, those jobs that would have run in the interval that has been skipped will be run immediately. Conversely, if
time has moved backward, care is taken to avoid running jobs twice.
Time changes of more than 3 hours are considered to be corrections to the clock or timezone, and the new time is used immediately.
PAM Access Control
On SUSE LINUX systems, crond now supports access control with PAM - see pam(8). A PAM configuration file for crond is installed in
/etc/pam.d/crond . crond loads the PAM environment from the pam_env module, but these can be overriden by settings in the crontab file.
SIGNALS
On receipt of a SIGHUP, the cron daemon will close and reopen its log file. This is useful in scripts which rotate and age log files.
Naturally this is not relevant if cron was built to use syslog(3).
CAVEATS
In this version of cron, /etc/crontab must not be writable by any user other than root. No crontab files may be links, or linked to by any
other file. No crontab files may be executable, or be writable by any user other than their owner.
SEE ALSO crontab(1), crontab(5), pam(8)AUTHOR
Paul Vixie <vixie@isc.org>
4th Berkeley Distribution 10 January 1996" CRON(8)