Hi
Im running a backup scriptwhich creates a log file
how do grep for the string in the logfile so the backup script can continue to next stage otherwise it will exit
i.e
12:32:53 INF - Client completed sending data for backup
12:33:02 INF - Backup by root on client lonbob04bak using... (4 Replies)
Okay, I got a log file, and I need to use a combo of the tail -f command and the grep command, but I don't want to see all the output, other than what I'm "grepping". As well I'd like it to stop tailing and searching and just return to the command line, once it finds 1 line with that string in it.... (1 Reply)
Hi All,
I have a log file which is storing a backup time stamps information in it. (pasted below)
20081006210008 0 20081006211910
20081006222824 0 20081006224758
20081007210049 0 ... (2 Replies)
Hello everyone. I have a log file that contains multiple domains:
www.thisdomain.com
agent.thisdomain.com
that.thisdomain.com
I need to copy all of the lines that contain "www.thisdomain.com" from the log and output them into a new file. I've tried everything with little luck. Please help... (3 Replies)
Hi Gurus,
I am facing a problem with grepping a set of data in active log file which are the info not in uniform, below is the sample data information.
I am trying to grep value.
Connect_PM Connect to APPS gateway failed
ERROR connection to host anyserver.com, service 6600 timed out
... (4 Replies)
Hi,
I would like to execute a daily grep like:
grep 2010-09-06 statistics.log|grep API > /var/tmp/stat20100906_sp.txt
On date e.g. 2010-09-07 run a grep on yesterday's date, from the result grep the word "API" put all in /var/tmp
Would like to have a script configured in the crontab, running... (4 Replies)
Hello,
I am new to shell scripting. I need to write a shell script where i can grep the name of file ie. .sh file and log file from crontab -l.
#51 18 * * * /home/oracle/refresh/refresh_ug634.sh > /home/oracle/refresh/refresh_ug634.sh.log 2>&1
#40 17 * * * /home/oracle/refresh/refresh_ux634.sh... (1 Reply)
logfile="/var/tmp.log"
output=$(grep "ERROR" $logfile)
if
then
echo "exceptions logged , please check /var/tmp.log for more details" |\
mail -s "exceptions logged , please check /var/tmp.log on for more details" $DL
else
echo "not found"
fi
Somehow its not working as... (5 Replies)
Hello,
I want to grep a log ("server.log") for words in a separate file ("white-list.txt") and generate a separate log file containing each line that uses a word from the "white-list.txt" file.
Putting that in bullet points:
Search through "server.log" for lines that contain any word... (15 Replies)
I have a log file which have a date and time at the start of every line.
I need to search the log file starting from a specific time to the end of file.
For example:
Starting point: July 29 2018 21:00:00
End point : end of file
My concern is what if the pattern of `July 29 2018 21:00:00`... (3 Replies)
Discussion started by: erin00
3 Replies
LEARN ABOUT CENTOS
unbuffer
UNBUFFER(1) General Commands Manual UNBUFFER(1)NAME
unbuffer - unbuffer output
SYNOPSIS
unbuffer program [ args ]
INTRODUCTION
unbuffer disables the output buffering that occurs when program output is redirected from non-interactive programs. For example, suppose
you are watching the output from a fifo by running it through od and then more.
od -c /tmp/fifo | more
You will not see anything until a full page of output has been produced.
You can disable this automatic buffering as follows:
unbuffer od -c /tmp/fifo | more
Normally, unbuffer does not read from stdin. This simplifies use of unbuffer in some situations. To use unbuffer in a pipeline, use the
-p flag. Example:
process1 | unbuffer -p process2 | process3
CAVEATS
unbuffer -p may appear to work incorrectly if a process feeding input to unbuffer exits. Consider:
process1 | unbuffer -p process2 | process3
If process1 exits, process2 may not yet have finished. It is impossible for unbuffer to know long to wait for process2 and process2 may
not ever finish, for example, if it is a filter. For expediency, unbuffer simply exits when it encounters an EOF from either its input or
process2.
In order to have a version of unbuffer that worked in all situations, an oracle would be necessary. If you want an application-specific
solution, workarounds or hand-coded Expect may be more suitable. For example, the following example shows how to allow grep to finish pro-
cessing when the cat before it finishes first. Using cat to feed grep would never require unbuffer in real life. It is merely a place-
holder for some imaginary process that may or may not finish. Similarly, the final cat at the end of the pipeline is also a placeholder
for another process.
$ cat /tmp/abcdef.log | grep abc | cat
abcdef
xxxabc defxxx
$ cat /tmp/abcdef.log | unbuffer grep abc | cat
$ (cat /tmp/abcdef.log ; sleep 1) | unbuffer grep abc | cat
abcdef
xxxabc defxxx
$
BUGS
The man page is longer than the program.
SEE ALSO
"Exploring Expect: A Tcl-Based Toolkit for Automating Interactive Programs" by Don Libes, O'Reilly and Associates, January 1995.
AUTHOR
Don Libes, National Institute of Standards and Technology
1 June 1994 UNBUFFER(1)