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 $1}' file1
Is there an obvious silly error here?
Thanks (3 Replies)
If my file looks like this….
10
20
30
and I want to take each line individually and put it in a variable so it can be read
later in it's on individual test statement, how can I do that? I guess what I'm asking is how can I extract each line individually.
Thanks (5 Replies)
I was proposed with the following problem:
The file 'numbers' contains a list of numbers. Write a command to place the
largest one of those numbers in the file 'largest' (there should be nothing
else in that file). Do not use the 'head' command in your answer.
I think if i used the sort... (1 Reply)
Hi,
I would like to extract a certain portion of sentences from a particular sentence i.e. to extract the last section embrace by
input
output
Please advice.
Cheers (6 Replies)
So, I want to read line-by-line a text file with unknown number of files....
So:
a=1
b=1
while ; do
b=`sed -n '$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)
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)
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)
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)
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)
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
cabextract
CABEXTRACT(1) General Commands Manual CABEXTRACT(1)NAME
cabextract - program to extract files from Microsoft cabinet (.cab) archives
SYNOPSIS
cabextract [-ddir] [-f] [-Fpattern] [-h] [-l] [-L] [-p] [-q] [-s] [-t] [-v] cabinet files ...
DESCRIPTION
cabextract is a program that un-archives files in the Microsoft cabinet file format (.cab) or any binary file which contains an embedded
cabinet file (frequently found in .exe files).
cabextract will extract all files from all cabinet files specified on the command line.
To extract a multi-part cabinet consisting of several files, only the first cabinet file needs to be given as an argument to cabextract as
it will automatically look for the remaining files. To prevent cabextract from extracting cabinet files you did not specify, use the -s
option.
OPTIONS
A summary of options is included below.
-d dir Extracts all files into the directory dir.
-f When testing or extracting cabinet files, corrupted MSZIP blocks will be ignored. A warning will be printed if a corrupted MSZIP
block is encountered.
-F pattern
Only files with names that match the shell pattern pattern shall be listed, tested or extracted. On non-GNU systems, this match may
be case-sensitive.
-h Prints a page of help and exits.
-l Lists the contents of the given cabinet files, rather than extracting them.
-L When extracting cabinet files, makes each extracted file's name lowercase.
-p Files shall be extracted to standard output.
-q When extracting cabinet files, suppresses all messages except errors and warnings.
-s When testing, listing or extracting cabinets which span multiple files, only cabinet files given on the command line shall be used.
-t Tests the integrity of the cabinet. Files are decompressed, but not written to disk or standard output. If the file successfully
decompresses, the MD5 checksum of the file is printed.
-v If given alone on the command line, prints the version of cabextract and exits. Given with a list of cabinet files, it will list the
contents of the cabinet files.
AUTHOR
This manual page was written by Stuart Caie <kyzer@4u.net>, based on the one written by Eric Sharkey <sharkey@debian.org>, for the Debian
GNU/Linux system.
SEE ALSO lcab(1)
October 30, 2005 CABEXTRACT(1)
09-28-2012
problem with extracting line in file
