09-28-2012
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I am just trying to extract a line at a time from a file using awk and can't yet extract even the first line using the following:-
awk '/(^) && (NR==1)/ {print $1}' file1
Is there an obvious silly error here?
Thanks (3 Replies)
Discussion started by: sirtrancealot
3 Replies
2. Shell Programming and Scripting
If my file looks like this….
10
20
30
and I want to take each line individually and put it in a variable so it can be read
later in it's on individual test statement, how can I do that? I guess what I'm asking is how can I extract each line individually.
Thanks (5 Replies)
Discussion started by: terryporter51
5 Replies
3. UNIX for Dummies Questions & Answers
I was proposed with the following problem:
The file 'numbers' contains a list of numbers. Write a command to place the
largest one of those numbers in the file 'largest' (there should be nothing
else in that file). Do not use the 'head' command in your answer.
I think if i used the sort... (1 Reply)
Discussion started by: stava
1 Replies
4. Shell Programming and Scripting
Hi,
I would like to extract a certain portion of sentences from a particular sentence i.e. to extract the last section embrace by
input
output
Please advice.
Cheers (6 Replies)
Discussion started by: dwgi32
6 Replies
5. Shell Programming and Scripting
So, I want to read line-by-line a text file with unknown number of files....
So:
a=1
b=1
while ; do
b=`sed -n '$ap' test`
a=`expr $a + 1`
$here do something with b etc
done
the problem is that sed does not seem to recognise the $a, even when trying
sed -n ' $a p'
So, I cannot read... (3 Replies)
Discussion started by: hakermania
3 Replies
6. Shell Programming and Scripting
i have applied the following command on a file named unix.txt that contains the string "linux from the text"
grep -n -i -w "linux from the text" unix.txt
and the result is
5:Today's Linux from the text systems are split into various branches, developed over time by AT&T as well as various... (5 Replies)
Discussion started by: arindamlive
5 Replies
7. Shell Programming and Scripting
here is the content of input file
CREATE TABLE `bla bla bla` (
`allianceSiteId` int(11) DEFAULT NULL,
`trunkGroupsId` int(11) DEFAULT NULL,
`lastModified` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
UNIQUE KEY `allianceSiteId`... (4 Replies)
Discussion started by: vivek d r
4 Replies
8. UNIX for Dummies Questions & Answers
Hello there, I am new to unix and would like to do the following, hoping someone would give some guide, thanks in advance.
Lets say i have a file like this:
A w x y w x 0.1
B w x y w x 0.3
C w x y w x 0.7
D w x y w x 0.9
E w x y w x 0.2
So i would like to extract line 1 data where line... (2 Replies)
Discussion started by: seiksoon
2 Replies
9. UNIX for Dummies Questions & Answers
Hi,
I am trying to extract lines from a text file given a text file containing line numbers to be extracted from the first file. How do I go about doing this? Thanks! (1 Reply)
Discussion started by: evelibertine
1 Replies
10. Shell Programming and Scripting
I was extracting the zipped tar file with the command
gzip -dc Sample.tar.gz |tar xf -
The tar file contained many delimited files; but lately they changed the structure of the tar file with another folder. So now all the delimited files are inside a folder called "Folder1" and the folder... (6 Replies)
Discussion started by: asandy1234
6 Replies
LEARN ABOUT DEBIAN
unrar-free
UNRAR-FREE(1) General Commands Manual UNRAR-FREE(1)
NAME
unrar-free -- extract files from rar archives
SYNOPSIS
unrar-free [-xtfp?V] [--extract] [--list] [--force] [--extract-newer] [--extract-no-paths] [--password] [--help] [--usage] [--ver-
sion] ARCHIVE [FILE ...] [DESTINATION]
DESCRIPTION
unrar-free is a program for extracting files from rar archives.
OPTIONS
These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is
included below.
-x --extract
Extract files from archive (default).
-t --list
List files in archive.
-f --force
Overwrite files when extracting.
--extract-newer
Only extract newer files from the archive.
--extract-no-paths
Don't create directories while extracting.
-p --password
Decrypt archive using a password.
-? --help
Show program help.
--usage Show short program usage message.
-V --version
Show version of program.
NON-FREE UNRAR COMPATIBLE SYNOPSIS
unrar-free [elvx] [-ep] [-o+] [-o-] [-ppassword] [-u] [--] ARCHIVE [FILE ...] [DESTINATION]
This syntax should only be used in front-end programs which are using non-free unrar as a back-end. It is recommended to use this program
by GNU command line syntax.
e Extract files from archive without full path.
l List files in archive.
v Verbose list files in archive.
x Extract files from archive with full path.
-ep Don't create directories while extracting.
-o+ Overwrite files when extracting.
-o- Don't overwrite files when extracting.
-p Decrypt archive using a password.
-u Only extract newer files from the archive.
-- Disable further switch processing. Any switch after the -- are treated as filenames and destination.
BUGS
Advanced features of version 3.0 archives are not currently supported.
AUTHORS
unrar-free was written by Ben Asselstine based on UniquE RAR File Library by Christian Scheurer and Johannes Winkelmann.
This manual page was written by Niklas Vainio <niklas.vainio@iki.fi> for the Debian system (but may be used by others). Permission is
granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 any later version pub-
lished by the Free Software Foundation.
On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.
UNRAR-FREE(1)