I want to make a logfile with error messages, like this:
(collumms: CUSTNR DATE TIME ERROR MESSAGE)
102 20020807 135417 1 Uptime server is more than 6 months
5 20020808 111335 3 Backup not Ok!
2001 20020808 120428 6 Free space at server1 is less than 20%
etcetera
I... (2 Replies)
Hi
How could I use the command printf to display a big file.
So ex. I've a script with some variables like:
V1=358504 V2=FD0147 V3=dev5 V4=94577 V5=0 V6=UNIX V7=Policy V8=server V9=04/15/05 V10=19:18:41 V11=2341321467
while read V1 V2 V3 V4 V5 V6 V7 V8 V9 V10 V11
do
printf "\n%s %s %s... (1 Reply)
Hi,
I am very confused with my printf command.
Somehow one variable can't line up with others...
newstart2 ="Mon Nov 11 01 00:00:00 2002"
printf "%-20s" $newstart2
Here is the output:
Mon Nov 11
01 00:00:00 2002
It spread out to two lines..
Why? (1 Reply)
hello, Im at another part of the program i am writing. Where i think i'm going to need to use the printf command.
If anyone can help me figure out the printf layout i would greatly appreicate it.
thanks (4 Replies)
hello,
I'm trying to display Unix variable using printf command.
Code:
awk '{ if ( $0 ~ /string/ ) {
printf( "%s\n%s\n",$0,"dsd"); #this one works
printf( "%s\n%s\n",$0,$HOME); #this does not work
} else {
print $0;
}
}' param1_1.txt
I could use here echo command but I'm... (2 Replies)
A big hello to everyone tagged to this site of knowledge . This is the first post of mine and I am looking forward to an enjoyable stint in this forum where I get to know a lot of new ideas and share whatever knowledge (its not much though :) ) I have acquired throughout my career so far with... (4 Replies)
Discussion started by: kumarjt
4 Replies
LEARN ABOUT CENTOS
timerisset
TIMERADD(3) Linux Programmer's Manual TIMERADD(3)NAME
timeradd, timersub, timercmp, timerclear, timerisset - timeval operations
SYNOPSIS
#include <sys/time.h>
void timeradd(struct timeval *a, struct timeval *b,
struct timeval *res);
void timersub(struct timeval *a, struct timeval *b,
struct timeval *res);
void timerclear(struct timeval *tvp);
int timerisset(struct timeval *tvp);
int timercmp(struct timeval *a, struct timeval *b, CMP);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
All functions shown above: _BSD_SOURCE
DESCRIPTION
The macros are provided to operate on timeval structures, defined in <sys/time.h> as:
struct timeval {
time_t tv_sec; /* seconds */
suseconds_t tv_usec; /* microseconds */
};
timeradd() adds the time values in a and b, and places the sum in the timeval pointed to by res. The result is normalized such that
res->tv_usec has a value in the range 0 to 999,999.
timersub() subtracts the time value in b from the time value in a, and places the result in the timeval pointed to by res. The result is
normalized such that res->tv_usec has a value in the range 0 to 999,999.
timerclear() zeros out the timeval structure pointed to by tvp, so that it represents the Epoch: 1970-01-01 00:00:00 +0000 (UTC).
timerisset() returns true (nonzero) if either field of the timeval structure pointed to by tvp contains a nonzero value.
timercmp() compares the timer values in a and b using the comparison operator CMP, and returns true (nonzero) or false (0) depending on the
result of the comparison. Some systems (but not Linux/glibc), have a broken timercmp() implementation, in which CMP of >=, <=, and == do
not work; portable applications can instead use
!timercmp(..., <)
!timercmp(..., >)
!timercmp(..., !=)
RETURN VALUE
timerisset() and timercmp() return true (nonzero) or false (0).
ERRORS
No errors are defined.
CONFORMING TO
Not in POSIX.1-2001. Present on most BSD derivatives.
SEE ALSO gettimeofday(2), time(7)COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2010-02-25 TIMERADD(3)