I would like to thanks for your response. I have tried all your options. But It was throwing erros. My requirement Is If I have 100 records in one file, then my output should be like this. The delimiter should show based on the columns in the file. Plz help me how to do this.
Last edited by Franklin52; 12-21-2010 at 07:39 AM..
Reason: Please use code tags, thank you
I am working in a ksh script.
I am reading a login, password, and database name from a pre-existing config file. Login and password are simple, I take the value after the first "=" sign, but the dbname has multiple equal signs in it. I have it working by temporarily reading the 23rd field, but... (4 Replies)
Hello forum,
I need to append the total line count to the end of each line in a file.
The file where this line count needs to be appended is generated by this script:
The script does a word frequency count by the first column of a file.
if I add wc -l at the end then the line count... (4 Replies)
Hi,
I have created one shell script in which it will count number of "~" tilda charactors from each line of the file.But the problem is that i need to count each line count individually, that means. if line one contains 14 "~"s and line two contains 15 "~"s then it should give an error msg.each... (3 Replies)
Hi
Need your help to assign the string to a variable from a line which has no fixed delimter in unix.
for example , my file contains
Name="report""
File Name one="test1"
File Name two="test2"
now how do I read report , test1 and test2 ?
var1=report
var2=test1
var3=test2
... (1 Reply)
What I'm trying to accomplish. I receive a Header and Detail file for daily processing. The detail file comes first which holds data, the header is a receipt of the detail file and has the detail files record count. Before processing the detail file I would like to put a wrapper around another... (4 Replies)
Hello,
I have been working on Awk/sed one liner which counts the number of occurrences of '|' in pipe separated lines of file and delete the line from files if count exceeds "17".
i.e need to get records having exact 17 pipe separated fields(no more or less)
currently i have below :
awk... (1 Reply)
I have a file like below with more than 30,000 lines:
Someword "mypattern blah blah mypattern blah mypattern blah "
Someotherword "mypattern blah blah mypattern blah mypattern blah"
Someword "mypattern blah blah blah mypattern blah "
Someword "mypattern blah blah mypattern blah ... (3 Replies)
Discussion started by: ctrld
3 Replies
LEARN ABOUT PHP
rl
rl(1) User Commands rl(1)NAME
rl - Randomize Lines.
SYNOPSIS
rl [OPTION]... [FILE]...
DESCRIPTION
rl reads lines from a input file or stdin, randomizes the lines and outputs a specified number of lines. It does this with only a single
pass over the input while trying to use as little memory as possible.
-c, --count=N
Select the number of lines to be returned in the output. If this argument is omitted all the lines in the file will be returned in
random order. If the input contains less lines than specified and the --reselect option below is not specified a warning is printed
and all lines are returned in random order.
-r, --reselect
When using this option a single line may be selected multiple times. The default behaviour is that any input line will only be
selected once. This option makes it possible to specify a --count option with more lines than the file actually holds.
-o, --output=FILE
Send randomized lines to FILE instead of stdout.
-d, --delimiter=DELIM
Use specified character as a "line" delimiter instead of the newline character.
-0, --null
Input lines are terminated by a null character. This option is useful to process the output of the GNU find -print0 option.
-n, --line-number
Output lines are numbered with the line number from the input file.
-q, --quiet, --silent
Be quiet about any errors or warnings.
-h, --help
Show short summary of options.
-v, --version
Show version of program.
EXAMPLES
Some simple demonstrations of how rl can help you do everyday tasks.
Play a random sound after 4 minutes (perfect for toast):
sleep 240 ; play `find /sounds -name '*.au' -print | rl --count=1`
Play the 15 most recent .mp3 files in random order.
ls -c *.mp3 | head -n 15 | rl | xargs --delimiter='
' play
Roll a dice:
seq 6 | rl --count 2
Roll a dice 1000 times and see which number comes up more often:
seq 6 | rl --reselect --count 1000 | sort | uniq -c | sort -n
Shuffle the words of a sentence:
echo -n "The rain in Spain stays mainly in the plain."
| rl --delimiter=' ';echo
Find all movies and play them in random order.
find . -name '*.avi' -print0 | rl -0 | xargs -n 1 -0 mplayer
Because -0 is used filenames with spaces (even newlines and other unusual characters) in them work.
BUGS
The program currently does not have very smart memory management. If you feed it huge files and expect it to fully randomize all lines it
will completely read the file in memory. If you specify the --count option it will only use the memory required for storing the specified
number of lines. Improvements on this area are on the TODO list.
The program uses the rand() system random function. This function returns a number between 0 and RAND_MAX, which may not be very large on
some systems. This will result in non-random results for files containing more lines than RAND_MAX.
Note that if you specify multiple input files they are randomized per file. This is a different result from when you cat all the files and
pipe the result into rl.
COPYRIGHT
Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Arthur de Jong.
This is free software; see the license for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Version 0.2.7 Jul 2008 rl(1)