Hi,
I am trying to do something with grep, but for some reason I just can't get it to to work.
I am looking for find a match in the second field, the length must be 10 characters and end with 'abc'.
The file is in this format:
<int><tab><field2>
I've tried a few patterns, some work,... (2 Replies)
Hello All,
I have been using String.h with gcc 2.95. Now I have upgraded to gcc 3.4. The support for String.h has been removed and I believe Regex.h support is also not inbuilt. So I tried to build my own library for String.h. I had to use Regex.h and rx.h for a succesful library compilation.... (0 Replies)
Hi all,
I am looking to create words from a sentence which adhere to a custom search pattern from my website:
Example:
! +! / += ~
where the terms ! = not, +! = AND NOT, += - and equals and ~ = can be like....
Now here is the issue...i want to split a sentence like the one above on... (1 Reply)
Hi,
Can someone tell me why the first regular expression with the + fails to match the input string?
SUN /web>echo cat | grep '+'
SUN /web>echo cat | grep ''
cat
I'm running SunOS 5.10
Thanks.
Chris (2 Replies)
Hi there,
How can we use regex in perl to store the Route Distinguisher (the bold field) and also the underlined and bold lines in the below file?
Note:
These highlighted pattern is redundant through the whole input file. Basically, we just need to extract these fields at least to store them... (4 Replies)
Need some help with a regex if loop problem.
File1:
2323
3232
4230
3230
4340
4343
233
32320
I want to print "Zero" if the number ends with a zero, but print "number" if it does not!
#!/bin/bash
/usr/bin/nawk '{
if ($1 ==/+0\b/){
print "Zero"}
else{
print "number"} (5 Replies)
Hi,
I tried to extract the time from `date` with sed.
(I know it works with `date +%H:%M:%S` as well)
I got three solutions of which just one worked. I thought "+" should repeat the previous expression 1 or more times and {n} should repeat the previous expression n times.
$ date
Thu... (9 Replies)
hi everyone
suppose my input file is
ABC-12345
ABCD-12345
BCD-123456
i want to search the specific pattern which looks like
-
in a file so i used this command
cat $file | awk ' { if ($0 ~ /-/) { print } }'
so it gives me the result as
ABCD-12345
BCD-12345
BCD-12345
... (31 Replies)
Hi,
I am looking for regex to extract following words from text:
The word which comes after "Replaced" means
Replaced disk
Replaced floppy
Replaced memory
Please suggest the regex for it.
Thanks! (4 Replies)
Script logs into switches on my list but nothing seems to happen.
Following error:
tr nope, doesn't (yet) match (?-xism:-]+ ?(?:\(config*\))? ? ?$)
du SEEN:
Here is code in question:
@version_info = $session_obj->cmd('term length 0');
$session_obj->cmd('show int | i... (5 Replies)
Discussion started by: mrlayance
5 Replies
LEARN ABOUT CENTOS
sd_journal_get_monotonic_usec
SD_JOURNAL_GET_REALTIME_USEC(3) sd_journal_get_realtime_usec SD_JOURNAL_GET_REALTIME_USEC(3)NAME
sd_journal_get_realtime_usec, sd_journal_get_monotonic_usec - Read timestamps from the current journal entry
SYNOPSIS
#include <systemd/sd-journal.h>
int sd_journal_get_realtime_usec(sd_journal* j, uint64_t* usec);
int sd_journal_get_monotonic_usec(sd_journal* j, uint64_t* usec, sd_id128_t* boot_id);
DESCRIPTION
sd_journal_get_realtime_usec() gets the realtime (wallclock) timestamp of the current journal entry. It takes two arguments: the journal
context object and a pointer to a 64-bit unsigned integer to store the timestamp in. The timestamp is in microseconds since the epoch, i.e.
CLOCK_REALTIME.
sd_journal_get_monotonic_usec() gets the monotonic timestamp of the current journal entry. It takes three arguments: the journal context
object, a pointer to a 64-bit unsigned integer to store the timestamp in, as well as a 128-bit ID buffer to store the boot ID of the
monotonic timestamp. The timestamp is in microseconds since boot-up of the specific boot, i.e. CLOCK_MONOTONIC. Since the monotonic clock
begins new with every reboot, it only defines a well-defined point in time when used together with an identifier identifying the boot. See
sd_id128_get_boot(3) for more information. If the boot ID parameter is passed NULL, the function will fail if the monotonic timestamp of
the current entry is not of the current system boot.
Note that these functions will not work before sd_journal_next(3) (or related call) has been called at least once, in order to position the
read pointer at a valid entry.
RETURN VALUE
sd_journal_get_realtime_usec() and sd_journal_get_monotonic_usec() returns 0 on success or a negative errno-style error code. If the boot
ID parameter was passed NULL and the monotonic timestamp of the current journal entry is not of the current system boot, -ESTALE is
returned by sd_journal_get_monotonic_usec().
NOTES
The sd_journal_get_realtime_usec() and sd_journal_get_monotonic_usec() interfaces are available as a shared library, which can be compiled
and linked to with the libsystemd-journal pkg-config(1) file.
SEE ALSO systemd(1), sd-journal(3), sd_journal_open(3), sd_journal_next(3), sd_journal_get_data(3), sd_id128_get_boot(3), clock_gettime(2),
sd_journal_get_cutoff_realtime_usec(3)systemd 208SD_JOURNAL_GET_REALTIME_USEC(3)