Hello,
I need to insert a line (like a header) as the first line of a very huge file (about 3 ml rows). I am able to do it with sed, but redirecting the output and creating a new file takes quite some time. I was wondering if there was a more efficient way of doing it?
Any help would be... (3 Replies)
i need help..!!!!
i have one big text file estimate data file size 50 - 100GB with 70 Mega Rows.
on OS SUN Solaris version 8
How i can remove first line of the text file.
Please suggest me for solutions.
Thank you very much in advance:) (5 Replies)
So, I want to read line-by-line a text file with unknown number of files....
So:
a=1
b=1
while ; do
b=`sed -n '$ap' test`
a=`expr $a + 1`
$here do something with b etc
done
the problem is that sed does not seem to recognise the $a, even when trying
sed -n ' $a p'
So, I cannot read... (3 Replies)
I have file which contains around 5000 lines.
The lines are fixed legth but having no delimiter.Each line line contains nearly 3000 characters.
I want to delete the lines
a> if it starts with 1 and if 576th postion is a digit i,e 0-9
or
b> if it starts with 0 or 9(i,e header and footer)
... (4 Replies)
Hi Experts,
I had to edit (a particular value) in header line of a very huge file so for that i wanted to search & replace a particular value on a file which was of 24 GB in Size. I managed to do it but it took long time to complete. Can anyone please tell me how can we do it in a optimised... (7 Replies)
Hi,
I have a huge file with a single line.
But I want to break that line into lines of with each line having five columns.
My file is like this:
code:
"hi","there","how","are","you?","It","was","great","working","with","you.","hope","to","work","you."
I want it like this:
code:... (1 Reply)
We have a huge file which has just one really large line; about 500 MB. I want to
1. Count all the occurrences of a phrase
2. Replace the phrase with another.
Trying to open it using vi has not helped as it complains that it is too large. Can any script help? Please advise.
Thank you, (12 Replies)
Hi,
I want to read a live log file line by line and considering those line which start from time stamp;
Below code I am using, which read line but throws an exception when comparing line that does not contain error code
tail -F /logs/COMMON-ERROR.log | while read myline; do... (2 Replies)
Hi ,
I would like to replace new line characters(\n) in a huge file of about 2 million records . I tried this one (:%s/\n//g) but it's hanging there and no result. Does this command do not work if the file is big. Please let me know if you have any other options
Regards
Raj (1 Reply)
Discussion started by: rajeevm
1 Replies
LEARN ABOUT OPENSOLARIS
rusage
rusage(1B) SunOS/BSD Compatibility Package Commands rusage(1B)NAME
rusage - print resource usage for a command
SYNOPSIS
/usr/ucb/rusage command
DESCRIPTION
The rusage command is similar to time(1). It runs the given command, which must be specified; that is, command is not optional as it is in
the C shell's timing facility. When the command is complete, rusage displays the real (wall clock), the system CPU, and the user CPU times
which elapsed during execution of the command, plus other fields in the rusage structure, all on one long line. Times are reported in sec-
onds and hundredths of a second.
EXAMPLES
Example 1 The format of rusage output
The example below shows the format of rusage output.
example% rusage wc /usr/share/man/man1/csh(1)
3045 13423 78071 /usr/share/man/man1/csh(1)
2.26 real 0.80 user 0.36 sys 11 pf 38 pr 0 sw 11 rb 0 wb 16 vcx 37
icx 24 mx 0 ix 1230 id 9 is
example%
Each of the fields identified corresponds to an element of the rusage structure, as described in getrusage(3C), as follows:
real elapsed real time
user ru_utime user time used
sys ru_stime system time used
pf ru_majflt page faults requiring physical I/O
pr ru_minflt page faults not requiring physical I/O
sw ru_nswap swaps
rb ru_inblock block input operations
wb ru_oublock block output operations
vcx ru_nvcsw voluntary context switches
icx ru_nivcsw involuntary context switches
mx ru_maxrss maximum resident set size
ix ru_ixrss currently 0
id ru_idrss integral resident set size
is ru_isrss currently 0
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWscpu |
+-----------------------------+-----------------------------+
SEE ALSO csh(1), time(1), getrusage(3C), attributes(5)BUGS
When the command being timed is interrupted, the timing values displayed may be inaccurate.
SunOS 5.11 14 Sep 1992 rusage(1B)