Hi,
I know I can use touch and find's "! -newer" option to list files that are older than a specific time, but what is a good way to get a list of files that are over 12 hours old?
The log pruner will run throughout the day, twice an hour. So I can't easily use a cronjob touch command to generate... (1 Reply)
I'm looking to pull the last 24 hours of a log file.
Here's what I've got so far:
yesterday=$(TZ=$TZ+24 date +"%b %e %H:%M")
today=$(date +"%b %e %H:%M")
echo $yesterday $today
grep -E "^$yesterday|^$today" /var/adm/syslog/syslog.log
But that pulls everything from $yesterday from... (1 Reply)
Hi Frens,
I want to list some files from a directory, which contains "DONE" in their name, i am receiving files every minute. In this i want to list all the files which are newer than 6 hours but older than 3 hours, of current time
i dont want my list to contain the latest files which are ... (4 Replies)
Hi,
Good Afternoon!
I am writing this script on "sh" and have Variables as below.
#Time in hours ex: 09
JobTime=`echo $StartTime |awk '{print $2}'|cut -f1 -d':'`
SystemHours=`date +%H`
How can go 4 hours back for each variable in a day?
Another Question?
JobStat=`dsjob -report... (5 Replies)
stupid question im sure, but its frustrating
My cron jobs are off by 5 hours. My system time is right but all of my cron jobs are running approximately 5 hours late. Any idea why? (4 Replies)
I have a file that should cover a days worth of stats, at the beginning of each 15 minute report I have a unique header that looks like the below example. The "0000" and "0015" will change in the header line to show which 15 Minute interval the report is covering and of course from day to day the... (7 Replies)
Hi ,
We have around 22 logs , each has different entries. I have to automate this using shell script. The ideas which am sharing is given below
1) We use only TAIL -100 <location and name of the log> Command to check the logs.
2) We want to check whether the log was updated before 24... (13 Replies)
I want to parse a log file which i am grepping root user connection but is showing whole day and previous day detail as well.
First i want to see last 2 hours log file then after that i want to search particular string. Lets suppose right now its 5:00PM, So i want to see the log of 3:00PM to... (6 Replies)
Discussion started by: learnbash
6 Replies
LEARN ABOUT ULTRIX
fgrep
grep(1) General Commands Manual grep(1)Name
grep, egrep, fgrep - search file for regular expression
Syntax
grep [option...] expression [file...]
egrep [option...] [expression] [file...]
fgrep [option...] [strings] [file]
Description
Commands of the family search the input files (standard input default) for lines matching a pattern. Normally, each line found is copied
to the standard output.
The command patterns are limited regular expressions in the style of which uses a compact nondeterministic algorithm. The command patterns
are full regular expressions. The command uses a fast deterministic algorithm that sometimes needs exponential space. The command pat-
terns are fixed strings. The command is fast and compact.
In all cases the file name is shown if there is more than one input file. Take care when using the characters $ * [ ^ | ( ) and in the
expression because they are also meaningful to the Shell. It is safest to enclose the entire expression argument in single quotes ' '.
The command searches for lines that contain one of the (new line-separated) strings.
The command accepts extended regular expressions. In the following description `character' excludes new line:
A followed by a single character other than new line matches that character.
The character ^ matches the beginning of a line.
The character $ matches the end of a line.
A . (dot) matches any character.
A single character not otherwise endowed with special meaning matches that character.
A string enclosed in brackets [] matches any single character from the string. Ranges of ASCII character codes may be abbreviated
as in `a-z0-9'. A ] may occur only as the first character of the string. A literal - must be placed where it can't be mistaken as
a range indicator.
A regular expression followed by an * (asterisk) matches a sequence of 0 or more matches of the regular expression. A regular
expression followed by a + (plus) matches a sequence of 1 or more matches of the regular expression. A regular expression followed
by a ? (question mark) matches a sequence of 0 or 1 matches of the regular expression.
Two regular expressions concatenated match a match of the first followed by a match of the second.
Two regular expressions separated by | or new line match either a match for the first or a match for the second.
A regular expression enclosed in parentheses matches a match for the regular expression.
The order of precedence of operators at the same parenthesis level is the following: [], then *+?, then concatenation, then | and new
line.
Options-b Precedes each output line with its block number. This is sometimes useful in locating disk block numbers by context.
-c Produces count of matching lines only.
-e expression
Uses next argument as expression that begins with a minus (-).
-f file Takes regular expression (egrep) or string list (fgrep) from file.
-i Considers upper and lowercase letter identical in making comparisons and only).
-l Lists files with matching lines only once, separated by a new line.
-n Precedes each matching line with its line number.
-s Silent mode and nothing is printed (except error messages). This is useful for checking the error status (see DIAGNOSTICS).
-v Displays all lines that do not match specified expression.
-w Searches for an expression as for a word (as if surrounded by `<' and `>'). For further information, see only.
-x Prints exact lines matched in their entirety only).
Restrictions
Lines are limited to 256 characters; longer lines are truncated.
Diagnostics
Exit status is 0 if any matches are found, 1 if none, 2 for syntax errors or inaccessible files.
See Alsoex(1), sed(1), sh(1)grep(1)