problem 2:
also is it possible taht when system is too busy my script from cron is being stopped. (I notices it becouse it executes everyday from cron and one day additional files is being erased - as script say and the other those files stay - like the end of script is not executed ?!?!?)
---------- Post updated at 01:55 PM ---------- Previous update was at 11:48 AM ----------
Every evening I run a script in AIX production box, which executes below command:
rcp prod_bkup.tar prodapp@IP:/data/appl/prod
This will rcp a backup of around 11 GB from production to another machine (runs every evening so overwrites previous one). Just to keep the backup safe. Since 2-3 days,... (0 Replies)
Hi,
I'm pritty new to C, but a recent bug in a program i've been using has forced me to debug it. But I am unable to find a debugger that can act as a layer between the OS and the program to see whats going on..
The problem is that this piece of software makes a connection through localhost... (2 Replies)
Hi,
I am trying to login using ssh on Red Hat Linux 5 server,
The password appears immediately but after I enter the password it takes about 90 seconds to login completely.
Please suggest what changes require?
Regards,
Manoj (4 Replies)
I'm having a bit of a login performance issue.. wondering if anyone has any ideas where I might look.
Here's the scenario...
Linux Red Hat ES 4 update 5
regardless of where I login from (ssh or on the text console) after providing the password the system seems to pause for between 30... (4 Replies)
Hi ,
We have 20 jobs are scheduled.
In that one of our job is taking long time ,it's not completing.
If we are not terminating it's running infinity time actually the job completion time is 5 minutes.
The job is deleting some records from the table and two insert statements and one select... (7 Replies)
Dear experts
I have a 200MG text file in this format:
text \tab number
I try to sort using options -fd and it takes very long! is that normal or I can speed it up in some ways?
I dont want to split the file since this one is already splitted.
I use this command: sort -fd file >... (12 Replies)
echo "1337124526" | perl -pe 's/(\d+)/easttime($1)/e'
the above gives a date and time.
how can i subtract the date and time given by this command, from the current present date?
can this be a one liner or as close to a one-liner as possible? (1 Reply)
Hi,
All the data are kept on Netapp using NFS. some directories are so fast when doing ls but few of them are slow. After doing few times, it becomes fast. Then again after few minutes, it becomes slow again. Can you advise what's going on?
This one directory I am very interested is giving... (3 Replies)
the following code works sometimes. other times, it behaves mysteriously. when the script sshs to a box, it is suppose to automatically begin running the command it is told to run. but in this case, after this script logs into a host, it just sits there at the prompt and does not run the... (1 Reply)
I was wondering if I could get some feedback on my script to grab time from our MDM... I blocked out all of the important stuff. I really appreciate any guidance, since I am long out of practice.
#!/bin/bash
serial=$1
# get last seen value of ipad
lastseen=$(curl -s -X "GET"... (11 Replies)
Discussion started by: andysensible
11 Replies
LEARN ABOUT X11R4
head
HEAD(1) User Commands HEAD(1)NAME
head - output the first part of files
SYNOPSIS
head [OPTION]... [FILE]...
DESCRIPTION
Print the first 10 lines of each FILE to standard output. With more than one FILE, precede each with a header giving the file name.
With no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short options too.
-c, --bytes=[-]NUM
print the first NUM bytes of each file; with the leading '-', print all but the last NUM bytes of each file
-n, --lines=[-]NUM
print the first NUM lines instead of the first 10; with the leading '-', print all but the last NUM lines of each file
-q, --quiet, --silent
never print headers giving file names
-v, --verbose
always print headers giving file names
-z, --zero-terminated
line delimiter is NUL, not newline
--help display this help and exit
--version
output version information and exit
NUM may have a multiplier suffix: b 512, kB 1000, K 1024, MB 1000*1000, M 1024*1024, GB 1000*1000*1000, G 1024*1024*1024, and so on for T,
P, E, Z, Y.
AUTHOR
Written by David MacKenzie and Jim Meyering.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report head translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO tail(1)
Full documentation at: <http://www.gnu.org/software/coreutils/head>
or available locally via: info '(coreutils) head invocation'
GNU coreutils 8.28 January 2018 HEAD(1)