12-14-2010
How to find spaces and update values on the same line.
Dear all,
I'm trying to write a script where:
A file contains more or less 2000 lines. To some of those lines, in a specific position, let's say 89-92 there are spaces. So, this script should find these spaces on specific position and update a value (from 2 to 1) to another position of the same line, position 729.
Maybe i can use grep and cut to find spaces but i'm not very sure how to update the value from 2 to 1.
Thanks a lot for your help!
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
What could be the regular expression with gsub function in awk to replace all numerics having spaces before to be replaced with 0s? (1 Reply)
Discussion started by: videsh77
1 Replies
2. UNIX for Dummies Questions & Answers
Hi,
I have a problem where I need to append few spaces(say 10 spaces) for each line in a file whose length is say(100 chars) and others leave as it is.
I tried to find the length of each line and then if the length is say 100 chars then tried to write those lines into another file and use a sed... (17 Replies)
Discussion started by: prathima
17 Replies
3. UNIX for Dummies Questions & Answers
Hi, i have this text:
X (m) 4917536.9627 4917536.9673 0.0090 -0.0046
Y (m) -815726.1383 -815726.1294 0.0061 -0.0089
Z (m) 3965857.4730 3965857.4840 0.0071 -0.0110
X (m) 4917536.9627 4917537.1411 -0.1784 0.1710
Y (m) -815726.1383 -815726.4859 0.3476 0.3489
Z (m) 3965857.4730... (2 Replies)
Discussion started by: limadario
2 Replies
4. Shell Programming and Scripting
Hello all. I am a newb obviously and a bit stumped on this, so any help gratefully accepted.
The script is extracting metadata from individual mp3 files, then (hopefully will be) sorting them into newly-created subdirectories. I have filtered out the relevant metadata and have the album names... (8 Replies)
Discussion started by: spoovy
8 Replies
5. Shell Programming and Scripting
my working shell is csh and even though if I try to run my script in plain sh, it behaves the same way. Here's a simple script:
#!/bin/sh
desc='"test my changes"'
cmd="echo \"$desc\""
$cmd
I want $desc to be passed as an argument to another command, but csh apparently doesn't like spaces in... (5 Replies)
Discussion started by: iskatel
5 Replies
6. AIX
i/o file:
abc,efg,xyz
Required o/p file:
"abc (Value + blank spaces=16) " ,"efg (Value +blank spaces=15) " ,"xyz (Value+ blank spaces =20) "
In short input file value stores in result file with " i/p Value " added with spaces and are of fixed size like 16,15,20
How to do using... (2 Replies)
Discussion started by: AhmedLakadkutta
2 Replies
7. Shell Programming and Scripting
I neead a script which converts low values to the spaces, When I used
sed -e 's/\x00/\x20/g' inputfile command it is removing the low values but not replacing it with spaces. Please help me. Its Uregent. Thanks
Sam (12 Replies)
Discussion started by: bsreee35
12 Replies
8. Shell Programming and Scripting
Hi,
I am trying to find the lines in a pipe delimited file where 11th column has not null values. Any help is appreciated. Need help asap please.
thanks in advance. (3 Replies)
Discussion started by: manikms
3 Replies
9. Shell Programming and Scripting
Gents,
Kindly can you help me to update a file extracting the data from other file.
I have:
file1
The key in this file is substr($0,4,21), and I need to update the columns 6 and 7 using the information for file2.
S 21133.00 21535.00 1 0 919088.8 1843754.5 ... (2 Replies)
Discussion started by: jiam912
2 Replies
10. Shell Programming and Scripting
Hi,
I have a xml file that I need to modify 1 line to change some value from 2 to 10 (or any number).
Sample input:
<!-- some text here>
.
.
.
<message:test name="ryan">
<message:sample-channel charset="UTF-8" max-value="2" wait="20">
... (5 Replies)
Discussion started by: brichigo
5 Replies
LUA(1) General Commands Manual LUA(1)
NAME
lua - Lua interpreter
SYNOPSIS
lua [ options ] [ script [ args ] ]
DESCRIPTION
lua is the stand-alone Lua interpreter. It loads and executes Lua programs, either in textual source form or in precompiled binary form.
(Precompiled binaries are output by luac, the Lua compiler.) lua can be used as a batch interpreter and also interactively.
The given options (see below) are executed and then the Lua program in file script is loaded and executed. The given args are available to
script as strings in a global table named arg. If these arguments contain spaces or other characters special to the shell, then they
should be quoted (but note that the quotes will be removed by the shell). The arguments in arg start at 0, which contains the string
`script'. The index of the last argument is stored in arg.n. The arguments given in the command line before script, including the name of
the interpreter, are available in negative indices in arg.
At the very start, before even handling the command line, lua executes the contents of the environment variable LUA_INIT, if it is defined.
If the value of LUA_INIT is of the form `@filename', then filename is executed. Otherwise, the string is assumed to be a Lua statement and
is executed.
Options start with - and are described below. You can use -- to signal the end of options.
If no arguments are given, then -v -i is assumed when the standard input is a terminal; otherwise, - is assumed.
In interactive mode, lua prompts the user, reads lines from the standard input, and executes them as they are read. If a line does not
contain a complete statement, then a secondary prompt is displayed and lines are read until a complete statement is formed or a syntax
error is found. So, one way to interrupt the reading of an incomplete statement is to force a syntax error: adding a `;' in the middle of
a statement is a sure way of forcing a syntax error (except inside multiline strings and comments; these must be closed explicitly). If a
line starts with `=', then lua displays the values of all the expressions in the remainder of the line. The expressions must be separated
by commas. The primary prompt is the value of the global variable _PROMPT, if this value is a string; otherwise, the default prompt is
used. Similarly, the secondary prompt is the value of the global variable _PROMPT2. So, to change the prompts, set the corresponding
variable to a string of your choice. You can do that after calling the interpreter or on the command line with _PROMPT='lua: ', for exam-
ple. (Note the need for quotes, because the string contains a space.) The default prompts are ``> '' and ``>> ''.
OPTIONS
- load and execute the standard input as a file, that is, not interactively, even when the standard input is a terminal.
-e stat
execute statement stat. You need to quote stat if it contains spaces, quotes, or other characters special to the shell.
-i enter interactive mode after script is executed.
-l file
call require(file) before executing script. Typically used to load libraries (hence the letter l).
-v show version information.
-P suppress the creation of a standard LUA_PATH variable. Use this if you need to run scripts which conflict with system-installed
libraries.
SEE ALSO
luac(1)
http://www.lua.org/
DIAGNOSTICS
Error messages should be self explanatory.
AUTHORS
R. Ierusalimschy, L. H. de Figueiredo, and W. Celes
<lua@tecgraf.puc-rio.br>
Debian modifications to the manpage by Daniel Silverstone
<dsilvers@debian.org>
2003/04/02 00:05:20 LUA(1)