Hi Guys,
I'm new in Unix Environment.
Any Unix Guru around...I need help. My question is, is it possible that the root cron could be override with 3rd party software?How can it happen. Another thing, how the cron job works?, I mean how the Unix process the cron job , I don't have an idea... (2 Replies)
I have a script in the same directory as some files and directories im trying to tar up and I have it run in cron. Well it runs but says it can't find the directories, you need to be in the directory where the script is for it to work. Here is my cron and script its crappy but it does the trick =).... (3 Replies)
Hi,
I would like to find out how can i calculate a date which is 3 months ago. I intend to run a cron job on the 1st of every month, and calculate the month 4 months earlier from the date. For example, if today's date is 1st May 2007, i would like to return 012007( January 2007).
i can get... (1 Reply)
Hi everyone, I am having a problem with a cron, I am using Solaris 10 and need to run a php file every 5 minutes. I can run the file from the test user, but the cron does not seem to run. I do not see anything about it in /var/cron/log but see crons for other users running. What should I look... (10 Replies)
Hi
I am new to unix.
I have to set up a cron for the program , which should run every Monday at 3 a.m, however , if the date is between the 5 th and the 15th of January,APril or December, the program should not run
I know i cant do this in cron , Help with writing the if contion is... (1 Reply)
Hi Expert
Please help me to set a cron job schedule,
Ihave a job that run every 3rd Friday of the month at 1030am.
I tried to set up like this, but the job still runs every friday at 1030am.
I want the job to run every 3rd Friday of the month at 1030am only
30 10 15,16,17,18,19,20,21... (2 Replies)
If I run 'who -u' interactively or from a script invoked through bash in a tty on my Ubuntu 12LTS box I get an output like this:
testuser pts/0 Dec 9 02:32 . 2163 (host.xx.yy)
running the same through cron I get:
testuser pts/0 2012-12-09 02:32 00:05 2163... (2 Replies)
Hi folks,
So I wrote a script to run "top", "awk" out values fro the "top" and send the results to a data file.
I then set it to run in cron every 15 minutes.
Now I'm noticing that the script, and it's sub-commands are not always cleanly finishing and, in my investigations, I am also... (11 Replies)
Hi,
1)
If some job supposed to run on 1st of every month at 7 AM
In cron job when we have a blackout on the 1st ( i.e when 1st falls on a sunday ) how can we make the job run the next business day?
2) How can we run a job on 25th of every quarter 7 AM(jan,apr,jul,oct)
And if 25th... (5 Replies)
Hi,
Actually scheduled my test scripts on test severs as shown below. They are supposed to run on 3rd sunday of every month.
Unfortunately it ran on 2nd sunday of the month (suspecting that it will run every sunday). I am sorry if I miss something. Could you please let me know if I did any... (1 Reply)
Discussion started by: System Admin 77
1 Replies
LEARN ABOUT PHP
regex
regex(1F) FMLI Commands regex(1F)NAME
regex - match patterns against a string
SYNOPSIS
regex [-e] [ -v "string"] [ pattern template] ... pattern [template]
DESCRIPTION
The regex command takes a string from the standard input, and a list of pattern / template pairs, and runs regex() to compare the string
against each pattern until there is a match. When a match occurs, regex writes the corresponding template to the standard output and
returns TRUE. The last (or only) pattern does not need a template. If that is the pattern that matches the string, the function simply
returns TRUE. If no match is found, regex returns FALSE.
The argument pattern is a regular expression of the form described in regex(). In most cases, pattern should be enclosed in single quotes
to turn off special meanings of characters. Note that only the final pattern in the list may lack a template.
The argument template may contain the strings $m0 through $m9, which will be expanded to the part of pattern enclosed in ( ... )$0 through
( ... )$9 constructs (see examples below). Note that if you use this feature, you must be sure to enclose template in single quotes so
that FMLI does not expand $m0 through $m9 at parse time. This feature gives regex much of the power of cut(1), paste(1), and grep(1), and
some of the capabilities of sed(1). If there is no template, the default is $m0$m1$m2$m3$m4$m5$m6$m7$m8$m9.
OPTIONS
The following options are supported:
-e Evaluates the corresponding template and writes the result to the standard output.
-v "string" Uses string instead of the standard input to match against patterns.
EXAMPLES
Example 1: Cutting letters out of a string
To cut the 4th through 8th letters out of a string (this example will output strin and return TRUE):
`regex -v "my string is nice" '^.{3}(.{5})$0' '$m0'`
Example 2: Validating input in a form
In a form, to validate input to field 5 as an integer:
valid=`regex -v "$F5" '^[0-9]+$'`
Example 3: Translating an environment variable in a form
In a form, to translate an environment variable which contains one of the numbers 1, 2, 3, 4, 5 to the letters a, b, c, d, e:
value=`regex -v "$VAR1" 1 a 2 b 3 c 4 d 5 e '.*' 'Error'`
Note the use of the pattern '.*' to mean "anything else".
Example 4: Using backquoted expressions
In the example below, all three lines constitute a single backquoted expression. This expression, by itself, could be put in a menu defini-
tion file. Since backquoted expressions are expanded as they are parsed, and output from a backquoted expression (the cat command, in this
example) becomes part of the definition file being parsed, this expression would read /etc/passwd and make a dynamic menu of all the login
ids on the system.
`cat /etc/passwd | regex '^([^:]*)$0.*$' '
name=$m0
action=`message "$m0 is a user"`'`
DIAGNOSTICS
If none of the patterns match, regex returns FALSE, otherwise TRUE.
NOTES
Patterns and templates must often be enclosed in single quotes to turn off the special meanings of characters. Especially if you use the
$m0 through $m9 variables in the template, since FMLI will expand the variables (usually to "") before regex even sees them.
Single characters in character classes (inside []) must be listed before character ranges, otherwise they will not be recognized. For exam-
ple, [a-zA-Z_/] will not find underscores (_) or slashes (/), but [_/a-zA-Z] will.
The regular expressions accepted by regcmp differ slightly from other utilities (that is, sed, grep, awk, ed, and so forth).
regex with the -e option forces subsequent commands to be ignored. In other words, if a backquoted statement appears as follows:
`regex -e ...; command1; command2`
command1 and command2 would never be executed. However, dividing the expression into two:
`regex -e ...``command1; command2`
would yield the desired result.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO awk(1), cut(1), grep(1), paste(1), sed(1), regcmp(3C), attributes(5)SunOS 5.10 12 Jul 1999 regex(1F)