Speed increased 5-10 times!
6GB single line file completely froze the system
Hello nez,
How about this one then? I am sorry I couldn't test it since I don' have my logged into any server so tested on a online editor with 2 lines. Pretty sure should be faster
Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
Hi I wanted to split rows based on the number of 1's present in 21st field(21st field is 40 length field) so I wrote the below awk code. However, the tool that I am using to invoke the command is not recognising the command. So, could you please help me to translate this command to sed?
awk... (5 Replies)
Hi all,
I need a simple bin/sh script
FILE1:
ab1 gegege swgdeyedg
ac2 jxjjxjxjxxjxjx
ad3
ae4 xjxjxj zhzhzh ahahs
af5 sjsjsjs ssjsjsjsj sjsjsj
ag6 shshshshs sjjssj
shhshshs
myScript.sh has to return:
ROW ab1
ROW ac2
ROW ad3
ROW ae4
In other words: "ROW " + the first world... (3 Replies)
Hi Experts,
I am working on HP-UX. I am new to shell scripting. I would like to have a shell script which will prefix:
1. "H|" before first row of my file and,
2. "T" for all other rows of the file.
For Example - File before running the script 20100430|4123451810|218.50|TC
20100430 ... (4 Replies)
Hi pls help me out to short out this problem
rm PAB113_011.out
rm: PAB113_011.out: override protection 644 (yes/no)? n
If i give y it remove the file.
But i added the rm command as a part of ksh file and i tried to remove the file. Its not removing and the the file prompting as... (7 Replies)
Hi,
I have a file as
ABC 123_456_789 234_678_901
XYZ 1100_1250_1580_1680 1175_1440_1620_1890
so on
What I want my output file to look is "split by underscore and then place the contents in rows"
output
ABC 123 234
ABC 456 678
ABC 789 901
XYZ 1100 1175
XYZ 1250 1440... (3 Replies)
Dear community,
I have to split string in table and list all values. I'll skip the code and jump directly to mysql query.
This is the table:
category title
======= =======
7,3 title 1
1,3 title 2
1,2,3 title 3
Now, what I need is split category into single... (2 Replies)
Hi
I have a requirement, where i will receive multiple files in a folder (say: /fol1/fol2/). There will be at least 14 to 16 files. The size of the files will different, some may be 80GB or 90GB, some may be less than 5 GB (and the size of the files are very unpredictable). But the names of the... (10 Replies)
Any one can help me in converting columns into rows.
example
I have input file
10000|
10002|
10003|
10004|
10005|
I want output in below format
PARTY|PART_DT
10000|12080000000
10002|13075200000
10003|13939200000
10004|1347200000
10004|133600000
10004|1152000000 (13 Replies)
I have a large csv dataset like this : A value1
A value2
A value3
B value1
B value2
B value3
C value1
C value2
C value3
what I expected output is :A value1 value2 value3
B value1 value2 value3
C value1 value2 value3
I'm thinking of use like awk, columns , but haven't find a proper... (4 Replies)
Discussion started by: nengcheng
4 Replies
LEARN ABOUT REDHAT
xargs
XARGS(1L)XARGS(1L)NAME
xargs - build and execute command lines from standard input
SYNOPSIS
xargs [-0prtx] [-e[eof-str]] [-i[replace-str]] [-l[max-lines]] [-n max-args] [-s max-chars] [-P max-procs] [--null] [--eof[=eof-str]]
[--replace[=replace-str]] [--max-lines[=max-lines]] [--interactive] [--max-chars=max-chars] [--verbose] [--exit] [--max-procs=max-procs]
[--max-args=max-args] [--no-run-if-empty] [--version] [--help] [command [initial-arguments]]
DESCRIPTION
This manual page documents the GNU version of xargs. xargs reads arguments from the standard input, delimited by blanks (which can be pro-
tected with double or single quotes or a backslash) or newlines, and executes the command (default is /bin/echo) one or more times with any
initial-arguments followed by arguments read from standard input. Blank lines on the standard input are ignored.
xargs exits with the following status:
0 if it succeeds
123 if any invocation of the command exited with status 1-125
124 if the command exited with status 255
125 if the command is killed by a signal
126 if the command cannot be run
127 if the command is not found
1 if some other error occurred.
OPTIONS
--null, -0
Input filenames are terminated by a null character instead of by whitespace, and the quotes and backslash are not special (every
character is taken literally). Disables the end of file string, which is treated like any other argument. Useful when arguments
might contain white space, quote marks, or backslashes. The GNU find -print0 option produces input suitable for this mode.
--eof[=eof-str], -e[eof-str]
Set the end of file string to eof-str. If the end of file string occurs as a line of input, the rest of the input is ignored. If
eof-str is omitted, there is no end of file string. If this option is not given, the end of file string defaults to "_".
--help Print a summary of the options to xargs and exit.
--replace[=replace-str], -i[replace-str]
Replace occurences of replace-str in the initial arguments with names read from standard input. Also, unquoted blanks do not termi-
nate arguments. If replace-str is omitted, it defaults to "{}" (like for `find -exec'). Implies -x and -l 1.
--max-lines[=max-lines], -l[max-lines]
Use at most max-lines nonblank input lines per command line; max-lines defaults to 1 if omitted. Trailing blanks cause an input
line to be logically continued on the next input line. Implies -x.
--max-args=max-args, -n max-args
Use at most max-args arguments per command line. Fewer than max-args arguments will be used if the size (see the -s option) is
exceeded, unless the -x option is given, in which case xargs will exit.
--interactive, -p
Prompt the user about whether to run each command line and read a line from the terminal. Only run the command line if the response
starts with `y' or `Y'. Implies -t.
--no-run-if-empty, -r
If the standard input does not contain any nonblanks, do not run the command. Normally, the command is run once even if there is no
input.
--max-chars=max-chars, -s max-chars
Use at most max-chars characters per command line, including the command and initial arguments and the terminating nulls at the ends
of the argument strings. The default is as large as possible, up to 20k characters.
--verbose, -t
Print the command line on the standard error output before executing it.
--version
Print the version number of xargs and exit.
--exit, -x
Exit if the size (see the -s option) is exceeded.
--max-procs=max-procs, -P max-procs
Run up to max-procs processes at a time; the default is 1. If max-procs is 0, xargs will run as many processes as possible at a
time. Use the -n option with -P; otherwise chances are that only one exec will be done.
SEE ALSO find(1L), locate(1L), locatedb(5L), updatedb(1) Finding Files (on-line in Info, or printed)
XARGS(1L)