Would you like unix time, gregorian date-time, microseconds, delta microseconds? Simplest with min latency:
Commands that read stdin with a buffered FILE* often get the pipe data several K at a time, delayed. I have found that reading one byte at a time, like line does, overcomes this latency. Commands that write() one line at a time may not have this problem. Your UNIX may vary!
Can any body please explain the following df command to me:filesystem kbytes used avail capacity mounted on
/dev/root 6474195 2649052 3825143 41% /
/dev/stand 24097 5757 18340 24% /stand
/proc 0 0 0 ... (7 Replies)
Hello all, I know it can be done but don't know the command.
I would like to run vmstat via cron, I don't know a good interval and don't want huge logs but want stats pretty often.
Please someone who uses vmstat via cron let me know what your script looks like.
Thank you (11 Replies)
Hi
I want to give the user the choice of whether or not they want to include a certain option when they run the script.
This is my getops:
while getopts " s: d: r f: e h " option
do
case $option in
f ) dsxfile="$OPTARG";;
d ) dbname="$OPTARG";;
s ) dsn="$OPTARG";;
r )... (0 Replies)
Dear All,
I want to get the rows from file1.txt whose first column is exactly as the numbers (not subset) from file1.txt. so, i have to read by line from file1.txt and search in file2.txt. So the first column of the output must be the same as the file1.txt.
I used
% egrep -w -f... (5 Replies)
Hi,
Just some questions on the script below...?
Given: bash-2.03$ command -a option1 name1 name2
ParseOptions()
{
local Len=${#@}
local Ctr=2 #always start at 2
local Name=()
local Iter=0
while ; do
if <- Is this correct? so I can get the $2... (2 Replies)
set -A title
set -A author
count=1
index=0
while
do
read -A ${title}?"Booktitle: "
read -A ${author}?"Author(s): "
(( count = count + 1 ))
(( index = index + 1 ))
done
Hi... (1 Reply)
I getting error as test1.sh: syntax error at line 3: `do' unexpected while i was trying to run below code..
What was going wrong here?
find /usr/tmp/SB/reports/ -type f -name *.rdf |read file;do
echo "Copying $file to /usr/tmp/SB1"
done (1 Reply)
The problem I am having now is calling and reading a command and The Main script reads the data file and passes the input to the two calculation scripts, and than output to a file.
1.
The Main Script
-----------------
input=inputfilepj3
output=outfilepj3
echo "*** Converting... (2 Replies)
Hello, I have a file in the following format
id sample platform R1 R2 gene1 gene2 gene3
1 abc llumina R1_001.fastq.gz R2_001.fastq.gz apoe prnpp asp
2 def llumina R1_001.fastq.gz R2_001.fastq.gz apoe prnpp
3 ghi llumina ... (3 Replies)
Discussion started by: nans
3 Replies
LEARN ABOUT HPUX
gettimeofday
gettimeofday(2) System Calls Manual gettimeofday(2)NAME
gettimeofday - get the date and time
SYNOPSIS DESCRIPTION
The function obtains the current time, expressed as seconds and microseconds since Epoch, and stores it in the structure pointed to by tp.
The resolution of the system clock is one microsecond.
PARAMETERS
Programs should use this time zone information only in the absence of the environment variable.
tp A pointer to a structure in which the current time is returned.
The structure includes the following members:
tzp If this parameter is not a null pointer, it is interpreted as a pointer to a structure under HP-UX. The structure has the following
fields:
tz_minuteswest The number of minutes that the local time zone is west of Coordinated Universal Time (UTC) or Epoch.
tz_dsttime A flag that, if nonzero, indicates that Daylight Savings Time (DST) applies locally during the appropriate part of the
year.
RETURN VALUE
returns the following values under HP-UX:
Successful completion.
Failure.
is set to indicate the error.
ERRORS
If fails, is set to the following value under HP-UX:
[EFAULT] An argument address referenced invalid memory.
EXAMPLES
The following HP-UX example calls twice. It then computes the lapsed time between the calls in seconds and microseconds and stores the
result in a timeval structure:
WARNINGS
Relying on a granularity of one microsecond may result in code that is not portable to other platforms.
AUTHOR
was developed by the University of California, Berkeley, and HP.
SEE ALSO date(1), ftime(2), settimeofda(2), stime(2), time(2), ctime(3C).
gettimeofday(2)