Earnstaf,
This part will display entries in current and previous hours:
Code:
typeset -i mCurrHH
typeset -i mPrevHH
mCurrHH=`date +"%H"`
mPrevHH=${mCurrHH}-1
if [ ${mPrevHH} -eq -1 ]; then
mPrevHH=23 ## Assuming 00:00 to 23:59
fi
mFirstPart='^... .. '
egrep "${mFirstPart}${mPrevHH}|${mFirstPart}${mCurrHH}" input_file
Shell Life,
Nice script. That might fit my needs a little better actually. That way I can just cron it to run on the hour and it will find everything for the previous (take out egrep and just grep on ${mPrevHH}.. I notice you use the typeset in a lot of your scripts.. I'll do some reading on that see what I can learn.
Thanks for the input. This forum has been very beneficial to me teaching me scripting... hopefully one day I can contribute as much as you guys do
Edit: Quick question:
What is this part doing?
Code:
mFirstPart='^... .. '
Looks like some sort of regexp matching from the start of the line?? Thanks for your help.
Hello everyone,
This is my first post here and this is the first time I am using UNIX OS (Slackware). I find it really useful and powerful and would like to master it but as you may guess I am expreicing quite a few problems.
I've been reading a few documentations about it and bash this week... (17 Replies)
I would like some advice on how to logically put together a script to handle a daily task of data gathering for the following problem.
I have two files, file1 has 125,000 records that I cut and remove unwanted fields through scripts and cron. In file2, I have 25000 records that has the same... (4 Replies)
Alright, I feel like I have a pretty good basic knowledge of shell scripting, but this one is throwing me for a loop. I know I've seen something similar done with awk, but I couldn't find it with the search function.
I've grepped through my log file and get results like this:
--... (14 Replies)
Hello,
I have this script running on cron every 20 minutes.
By 12pm daily, our system is expecting all input files to be uploaded by the script.
After this cutoff time, the script would still be running though, but i need some kind of alerts/logs to know which input files weren't received for... (1 Reply)
I already have a solution to my problem, but I'm looking to see if it can be made more succinct and faster. The problem: given a list, as shown below, extract the pathname for any file in a directory named 'ample' and return it's index into the list. The index is also in the data itself. Note that... (1 Reply)
Hi folks,
I use following script:-
#!/bin/sh
# cd Linbread
TODAY=`date +"%m%d"`
DATA=`grep $TODAY linbread.dat`
HOUR=`date +"%H"`
if
then TOD="Morning"
elif
then TOD="Afternoon"
else
TOD="Evening"
fi
echo $DATA | gawk -F"|" '{printf("%s\n\n%s",$2,$3)}' > $$tmp
fold -s -w60... (0 Replies)
Greetings all. I have a repository server which receives, without exhaggeration, several million files a week. The majority of these files are in .csv format, which means they're highly compressable. They are spread throughout numerous directories where there are configured monitoring utilities... (4 Replies)
All
I have 2 parent directories - input and output. Each parent has multiple sub-directories...each sub-directory has multiple files. Each parent directory structure is a mirror image of itself
I need to poll the imput directory and if a new file is found, encrypt the file, move the file to... (2 Replies)
Hi,
Not sure whether this is the right place to post it. I decided to post it here 'coz Advanced and Expert users will most likely have the answer to what I am looking for.
I want to backup scripts that I have access to to a tar file file and zip it. At the moment I am creating a directory... (4 Replies)
Discussion started by: newbie_01
4 Replies
LEARN ABOUT CENTOS
xzegrep
XZGREP(1) XZ Utils XZGREP(1)NAME
xzgrep - search compressed files for a regular expression
SYNOPSIS
xzgrep [grep_options] [-e] pattern file...
xzegrep ...
xzfgrep ...
lzgrep ...
lzegrep ...
lzfgrep ...
DESCRIPTION
xzgrep invokes grep(1) on files which may be either uncompressed or compressed with xz(1), lzma(1), gzip(1), bzip2(1), or lzop(1). All
options specified are passed directly to grep(1).
If no file is specified, then standard input is decompressed if necessary and fed to grep(1). When reading from standard input, gzip(1),
bzip2(1), and lzop(1) compressed files are not supported.
If xzgrep is invoked as xzegrep or xzfgrep then egrep(1) or fgrep(1) is used instead of grep(1). The same applies to names lzgrep, lze-
grep, and lzfgrep, which are provided for backward compatibility with LZMA Utils.
ENVIRONMENT
GREP If the GREP environment variable is set, xzgrep uses it instead of grep(1), egrep(1), or fgrep(1).
SEE ALSO grep(1), xz(1), gzip(1), bzip2(1), lzop(1), zgrep(1)Tukaani 2011-03-19 XZGREP(1)
06-18-2007
