If your shell doesn't support variable references you'll have to use the eval hack, then. That forces it to evaluate the text it's been given as a raw shell statement again.
I have a while loop like this
cat ${filename} | while read fileline
do
...
done
I need to access a variable value $newfile inside this while loop
How will i do that?? (6 Replies)
I am unable to access the value set inside the loop from outside loop .
Thought of taking this to forum , I had seen other replies also , where a pipe takes the execution to another shell and mentioned thats the reason we do not get the variable outside loop . But I am getting an issue and I am... (1 Reply)
I recently installed Cygwin on my windows vista to practice on Linux\unix commands.
I am unable to do a simple task of declaring variables on the command prompt
I am trying:
$ vech=Bus
$ echo $vech
bash: vech : command not found
What am I missing? Do i need to add something to .bashrc?
... (1 Reply)
Hi,
I have a user defined variable _TIME1=xxx
I am using awk command for pattern matching.
cat $_LOCATION/catalina.txt | awk '/^`$_TIME1`:??:??/'
It not taking the value of $_TIME!
eg:I am using the command to get all the patter from 12:00:00 to 12:59:59
The user defined variable... (2 Replies)
Hi,
I'm using a shell wrapper to trigger a teradata sql fastexport script as follows:
#!/bin/ksh
export delm=`echo "\t"`
fexp <<!
SELECT
COALESCE(TRIM(CAST(col1 AS VARCHAR(10))),'')
||'$delm'|| COALESCE(CAST(col2 AS VARCHAR(10)),'')
||'$delm'|| COALESCE(TRIM(col3),'')
FROM TABLE;
... (11 Replies)
Hi
Could anyone please help with Awk.
The below code prints the PID of the matching process with condition with $8 and $9
ps -ef |awk '($8~/proc/) && ($9~/rPROC2/) {print $2}'
Now i want to change the Constant PROC2 from Shell variable
PROC2 is already declared in shell variable SRVNAME... (9 Replies)
Code
set -x
STATUS="0"
echo $STATUS
for i in `ls -ltr Report*|awk '{ print $9 }'`
do
if
then
flg = "`head -1 "$i" |cut -c 31-33`"
echo `head -1 "$i" |cut -c 31-33`
echo $flg
if
then
echo "having Fun"
STATUS="2"
else
echo "no Fun"
fi
fi (2 Replies)
Hi I have created the following shell script file with the following content.
#!/bin/csh
set VAR1="abcxyz" << EOF
EOF
echo "---------------------"
echo "VAR1 = $VAR1"
echo "---------------------"
i am not able to echo the previously set VAR1.
Can any one suggested what could be wrong?... (5 Replies)
Hello All,
Hope you can understand my problem from the below code.
$ cat ~/.profile
PS1=`whoami`@`hostname`':$PWD
$ '
export PATH="$PATH:.:/logarchive/utility/util:/usr/sbin:"
$ echo $PATH
/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:.:/usr/sbin:
$ echo $SHELL
/usr/bin/ksh
... (6 Replies)
bash-3.2$ time rm -rf /tmp/logs/server1.out I wish to check if is more than 10 secs then exit 5; else; exit 7
How can i capture the row value for real in the output shown above ?
I am also not able to redirect the output to a file.
Can you please suggest ? (7 Replies)
Discussion started by: mohtashims
7 Replies
LEARN ABOUT DEBIAN
upslog
UPSLOG(8) NUT Manual UPSLOG(8)NAME
upslog - UPS status logger
SYNOPSIS
upslog -h
upslog [OPTIONS]
DESCRIPTION
upslog is a daemon that will poll a UPS at periodic intervals, fetch the variables that interest you, format them, and write them to a
file.
The default format string includes variables that are supported by many common UPS models. See the description below to make your own.
OPTIONS -h
Display the help message.
-f format
Monitor the UPS using this format string. Be sure to enclose format in quotes so your shell doesn't split it up. Valid escapes within
this string are:
%%
Insert a single "%"
%TIME format%
Insert the time with strftime formatting
%ETIME%
Insert the number of seconds, ala time_t. This is now a 10 digit number.
%HOST%
insert the local hostname
%UPSHOST%
insert the host of the UPS being monitored
%PID%
insert the pid of upslog
%VAR varname%
insert the value of variable varname
The default format string is:
%TIME @Y@m@d @H@M@S% %VAR battery.charge% %VAR input.voltage%
%VAR ups.load% [%VAR ups.status%] %VAR ups.temperature%
%VAR input.frequency%
-i interval
Wait this many seconds between polls. This defaults to 30 seconds.
If you require tighter timing, you should write your own logger using the upsclient(3) library.
-l logfile
Store the results in this file.
You can use "-" for stdout, but upslog will remain in the foreground.
-s ups
Monitor this UPS. The format for this option is upsname[@hostname[:port]]. The default hostname is "localhost".
-u username
If started as root, upsmon will setuid(2) to the user id associated with username for security.
If username is not defined, it will use the value that was compiled into the program. This defaults to "nobody", which is less than
ideal.
SERVICE DELAYS
The interval value is merely the number given to sleep(3) after running through the format string. Therefore, a query will actually take
slightly longer than the interval, depending on the speed of your system.
LOG ROTATION
upslog writes its PID to upslog.pid, and will reopen the log file if you send it a SIGHUP. This allows it to keep running when the log is
rotated by an external program.
SEE ALSO
Server:
upsd(8)
Clients:
upsc(8), upscmd(8), upsrw(8), upsmon(8)
Internet resources:
The NUT (Network UPS Tools) home page: http://www.networkupstools.org/
Network UPS Tools 05/21/2012 UPSLOG(8)