A brief improvisation on radoulov's inventive zsh script -- move the read outside the loop -- probably a negligible difference for short files, however, could make a difference for longer files (a manifestation of my habit of moving invariant code outside Fortran loops ):
Hi,
I have a question on bash. Basically I would like to print a file name using bash. I am actually trying to grep a particular character in sequential files.
I have alot files such that a.txt, b.txt,c.txt...etc.
If I found a certain character, I would print that particular filename.
I... (5 Replies)
Hi all,
I need help in following scenario. I have a file with about 10,000 lines. There are several lines which have word "START" (all upper case) in them. I want to grep line with word "START" and then do the following
1. Print the line number having word "START"
2. Print the next 11 lines.
... (4 Replies)
Hi Guys,
I need to set the value of $7 to zero in case $7 is NULL. I've tried the below command but doesn't work. Any ideas. thanks guys.
MEM=`ps v $PPID| grep -i db2 | grep -v grep| awk '{ if ( $7 ~ " " ) { print 0 } else { print $7}}' `
Harby. (4 Replies)
I just need to print value 12 digit number after the key *MI*. My big concern is the below lines are not fixed format or length so cant cut based on the position.
XSA*00**00**XZ*DA-Paper*30*942411167****MI*010001990802~AEE
XSA*00**00**ZZ*EA-aper*30*94169****MI*010001960802~SDRE*ER... (7 Replies)
Hi
I have this in my file
2011-04-18 15:32:11 system-alert-00012: UDP flood! From xxxxxx to yyyyyyyyyy, int ethernet0/2). Occurred 1 times.
2011-04-18 15:32:11 system-alert-00012: UDP flood! From xxxxxx to yyyyyyyyyy, int ethernet0/2). Occurred 1 times.
2011-04-18 15:32:11... (9 Replies)
Hi ,
I have data in below pattern
05:00:13,184 WARN ContentTransferService - CTS:createContent - File Name:470208627 Total time taken(ms):5137
05:00:13,184 WARN ContentTransferService - CTS:createContentWithFolderPath(uploadDocument) - File Name:295918481 User Id:xyz Total time... (5 Replies)
Hi,
I have a continuous log file which has the following format:-
02/Sep/2015: IP 11.151.108.166 error occurred etc
03/Sep/2015: IP 11.151.108.188 error occurred etc
03/Sep/2015: IP 11.152.178.250 error occurred etc
03/Sep/2015: IP 11.188.108.176 error occurred etc
03/Sep/2015: IP... (4 Replies)
Discussion started by: finn
4 Replies
LEARN ABOUT X11R4
shuf
SHUF(1) User Commands SHUF(1)NAME
shuf - generate random permutations
SYNOPSIS
shuf [OPTION]... [FILE]
shuf -e [OPTION]... [ARG]...
shuf -i LO-HI [OPTION]...
DESCRIPTION
Write a random permutation of the input lines to standard output.
With no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short options too.
-e, --echo
treat each ARG as an input line
-i, --input-range=LO-HI
treat each number LO through HI as an input line
-n, --head-count=COUNT
output at most COUNT lines
-o, --output=FILE
write result to FILE instead of standard output
--random-source=FILE
get random bytes from FILE
-r, --repeat
output lines can be repeated
-z, --zero-terminated
line delimiter is NUL, not newline
--help display this help and exit
--version
output version information and exit
AUTHOR
Written by Paul Eggert.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report shuf 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
Full documentation at: <http://www.gnu.org/software/coreutils/shuf>
or available locally via: info '(coreutils) shuf invocation'
GNU coreutils 8.28 January 2018 SHUF(1)
10-13-2007
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