Programming :: How To Read File Inside AWK?
Apr 13, 2011I want to read content of a file inside a gawk script.I know that by using "gawk -f filename" I can read a file, but I want to do that inside the script.
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Programming :: Bash Script And Grep Inside File?
Apr 2, 2010What I'm trying to do is grep [mysqld] from inside my.cnf and then add lines inside the file should they not be there. how do i do that?
View 3 Replies View RelatedProgramming :: Splitting A File Based On The Values Read From An Input File?
Jul 27, 2010I am splitting a file based on the values read from an input file. The below one is the script.
1)How do I add the header which is present in the original file to the new split files created?(For eg. pharmacyf conatins header as table column names. The new files created (ODS.POS.$pharmacyid.$tablename.$CURRENT_DATE.dat) are without the header).
2) Also the script is creating 0 byte files for the pharmacyids which are not available in the intial file? Can this be avoided?
for pharmacyf in *
do
tablename=`echo $pharmacyf |cut -f4 -d'.' `
while read pharmacyid
do
grep -w $pharmacyid $pharmacyf >> $OUT/ODS.POS.$pharmacyid.$tablename.$CURRENT_DATE.dat
done< inputfile
done
Programming :: 3D Array In MAT File ->DAT File To Read In FORTRAN?
Jul 2, 2009Alright, so I have been trying to resolve this issue for awhile, but now feel like help is very necessary.I have a 128(by)128(by)128 array in a MAT file, and am using the following MATLAB script to convert it to a DAT file:
load C_42.mat
fid=fopen('C_42.dat','wt')
fwrite(fid,Nu)
[code]...
Programming :: Read A File With A While Loop?
Apr 25, 2010ITT and am just lurning about scripting and need to read a file and output the file to the screen. We need to do this with a while loop.
View 5 Replies View RelatedProgramming :: Read The Contents Of A File?
Jan 11, 2010I am trying to read the contents of a file into something else. I have a file.txt that I am working with, I want to read the file and take the data and run some commands with the data that it read. So if it read www.yahoo.com I want to be able to nslookup. Does that make sense? I have been trying to use the read command but that does not seem to work. I even was trying to read filename | > filename to see if I could even read any of the data at all. Nothing is working.
View 8 Replies View RelatedProgramming :: Read A Line From A Txt File In A Script?
Dec 9, 2010have been playing around with a script for a few hours and now I need to be able to output the lines in a text file one by one to be used later in the script.What it gonna do is to read a log file and grep the usernames, then write them to a file, and then run one script for each user, to search for more information about them in the log.But I don't know how to output a single line from a file, and google does not return any solution.
View 3 Replies View RelatedProgramming :: Read From A File Named MatrixA?
Mar 10, 2011I am trying to read from a file named matrixA.dat that contains a matrix formatted like this:
2 x 3
1 0 2 -1 3 1
I am reading the lines in, and this is the source that I have so far: Code: #include <stdio.h>
#include <string.h>
#define DATALIMIT 17
#define DIMLIMIT 5
#define NAMELIMIT 40
[Code]...
was stored in dataA, so when I print it all I get is a newline. Why didn't it grab the 1 0 2 -1 3 1 line?
Programming :: BASH Read File Once Then Return To Top?
Aug 8, 2010I have a script that reads part of a line, delimited between the first and second intended part by a colon. Then it "chops" the part after the colon, which are words offset by commas (counting them beforehand so as to catch every word in the string's second part), like this:
Code:
"COLORS.JPG:red,orange,yellow,green,"
(Returning)
red
[code]....
single script that parses/breaks both parts of a line like this "COLORS.JPG:red,orange,yellow,green;blue,indigo,violet," so that the two parts, separated into single words (or two and three words, sometimes with spaces) can be used as single-line annotations and written to JPEG files using Exiv2. So far, I haven't been able to come up with a script that does this without one part of the total string(usually that part after the colon) becoming the first word in the second array. In other words, I look for this:
KEYWORDS:
[ ]red
[ ]orange
[ ]yellow
[code]....
Or vice-versa (ie, the second array winds up as a single-line "member" of the first). I think it's because I'm using a single while read loop to read the text file in which the filenames and substrings happen to be. If there's some way of reading a file once and going back to the beginning to read it again in another while loop, I haven't found it.
Programming :: Bash - Read File Without Whitespace?
Mar 14, 2011I am struggling with Bash scripting at the moment (I can't seem how anyone can write scripts with this language!!!) I have a need at home to have a cron job execute daily to lookup my downloads.txt file, read each url (per line) and download content from that url. Then that entry needs to be removed (well I keep all urls in memory and clear the file afterwards). If an error occurred during the download process, then the url is written to a downloads.err file. I got all the above working except for properly reading the url from the text file without including newline characters. I am using the following to read:
while read url; do
--Do whatever here--
done < downloads.txt
How can I get it not to let the url variable have newline characters?
Programming :: Read In A File 1 Line At A Time?
Oct 22, 2010i am trying to read in a file 1 line at a time and for some reason it stops printing out at about line 62,000.
i am doing this:
Code:
while(fgets(c0, 1085, fstream0) != NULL)
but after about 62,0000 lines it stops printing. no seg-fault, no core dump. it just stops printing to the terminal then returns me to the command line after a couple of minutes. as a hack i am doing split -l 50000 on the input and calling my program 5 times.is there some limitation on fgets that i am not understanding ?
Programming :: Read Text File Using Arrays In C++?
Oct 19, 2010a project using bluetooth to send data byte by byte to external devices buti'm not familiar using arrays to read file from another location before sending the data.If you could,do correct my codes.Here's my code,
void loop(){
char Msg[]={"Hello"};
char *start;
[code]...
Programming :: Read A Txt File With C++ In Linux And Output It?
Mar 15, 2010i have wrote a long piece of code above with the "main" which is calling openFile( &fout, filename )filename contains the txt name in a form of "data.txt"i wanna read the data from the file and output it into fout for later use.the data in that file is a vector looking interger group.i have the following code:
int openFile( ofstream * fout, const char * filename)
{
ifstream iFile(filename);
[code]...
Programming :: Read A Value From A File In Shell Script?
Mar 12, 2010So my firefox's profile.ini file looks like this:less .mozilla/firefox/profiles.ini
Code:
[General]
StartWithLastProfile=1
[code]...
Programming :: Read Each Line Of A File As Input?
Jun 21, 2011I'm writing a program which now accepts user input:
Code:
echo "Enter a date in the format YYYY MM DD hh mm ss."
read gregyr gregmo gregdy greghr gregmn gregsc This lets the user input a date and time, such as 2011 06 21 15 12 45, and have each number assigned to their corresponding variable. Later in the program, these variables are put into an equation, and then the terminal spits out the answer. Now I have to have the program read all of the lines from a text file, which is in this format, assign the variables.
Programming :: Read File Names In A Dir And Its Sub Dir In Perl?
Apr 22, 2010I am writing a script that involves reading the content of a file present in a directory and/or its sub directory. I know readdir returns all the files & DIR names in a directory but how to check weather readdir is returning a file or a directory
View 2 Replies View RelatedProgramming :: Read The File Add Number And Get The Average?
Apr 29, 2010I have a file which has several entries with
# comment 1
1245
# comment 2
5667
# comment 3
456456
how can I read the file, sum the numbers ( "avoid" the #lines) and then get the average of the numbers?
I do awk '{s+=$0} END {print s}' /tmp/file.txt. and this give me the sum correctly, but how can I get also the average ?
Programming :: Read A File And Parse A String In C++
Jul 26, 2010I need to read a file and parse a string. I know in Perl there is the split command. Is there something similar to that in C++?
View 6 Replies View RelatedGeneral :: Windows Access The File From Ubuntu Got Read Only Even Though Have A Full Permission To Read, Write And Execute The File?
Feb 4, 2010What are the possible problem when Windows access the file from Ubuntu got Read Only even though have a full permission to read, write and execute the file? Ubuntu to Ubuntu accessing the file there is no problem only Windows got a problem.
View 1 Replies View RelatedProgramming :: Script To Read A File And Get Each Column With Varibles?
Jul 2, 2010i have a script to read a file and get each column with varibles.actually my file: hplog1 sample 3 lines consists of
client1_day- 2010
jan
client2 2009
[code]....
Programming :: Read Multiple Lines From A Text File?
Mar 11, 2011For example, I have a text file with data which lists numerical values from two separate individuals
Code:
Person A
100
[code]...
Programming :: Read A File That Counts Each Line And Numbers
May 13, 2010I ran into it while google Segmentation Fault. I'm writing a simple C program that reads a file that counts each line and numbers it then writes to a file called sdout. I copyed my program mostly from the text book but im still having problems. Heres my code:
#include <stdio.h>
#include <stdlib.h>
void new_line(FILE *, FILE *);
int main(char *argv)
[Code]....
Programming :: Looping Using While Read Line And A Variable Instead Of A File?
Sep 24, 2010I created the following.
x="top
middle
bottom"
I would like to make the following work.
while read line
do
echo $line
done
instead of importing a file I would like to use the variable $x I tried using pipes, but with no luck. My goal is to read one line at a time, but not have to export my data to another file, I would like to keep it all within one script.
Programming :: Perl Read File And Parse Blocks?
Aug 21, 2010I am trying to make a perl script which reads data from a file and parse it. The data in the file has the following syntax
Code:
Device Physical Name : Not Visible
Device Symmetrix Name : 1234
Device Serial ID : N/A
Attached BCV Device : N/A
Device Capacity
[Code]...
Each unique record starts with "Device Physical Name". So, I have a set of records within "Device Physical Name". I want to read this set of records starting from "Device Physical Name" and ends up till next "Device Physical Name". Offcourse FS is ":", and I just want to print/or later put info in a csv file.
Programming :: Read Text File (Distribute Its Contents)
Jan 22, 2011How can read the file /var/etc/allInOne.cfg and distribute its contents on multiple cfg files using C language. /var/etc/allInOne.cfg contain the data and the path of each text file.
The source file "/var/etc/allInOne.cfg "look like this:
line1
line2
...
line10
filePath:/var/etc/file1.cfg
line12
line13
...
line14
filePath:/var/etc/file2.cfg
linen
..
filePath:/var/etc/filen.cfg
the result will be :
The expected result is:
/var/etc/file1.cfg will contain line1 to line10
/var/etc/file2.cfg will contain line 12 to line13
/var/etc/filen.cfg will contain linen to linen-1
Programming :: Read Time Of /proc/net/tcp6 File
Dec 8, 2010I am trying to read the /proc/net/tcp6 file of a huge server (chat server) for monitoring the tcp6 connection states.
My server's tcp6 file has more than 26000 lines. For monitoring the server connections, my monitoring tool has to read the /proc/net/tcp6 file quickly in a regular interval (5 secs) and process. Presently it takes minimum 6-7 seconds for reading the whole file.
My tool can able to read the normal file (26,000 lines) less than 1 second, but it is not possible to read the same size of proc file.
I have 2 questions:
1) Why proc file takes more read time than normal file?
2) Is there any way to read the /proc/net/tcp6 file more quickly?
Programming :: Script To Read File And Copy It To Other Detination?
May 15, 2010I have file in which i have some paths, i want to write a script so that it can read the file and copy the files from the paths to some destination folder which i will specify in the shell.
View 5 Replies View RelatedProgramming :: Sed To Read The File And Replace And Insert The Pattern?
Jun 11, 2009I want to read from the file and check for the pattern, if the line has some word like <string>: then string should be copied into buffer. Afterwards, I want to insert the same <string> with some word in the next line of the file. use sed command to perform the above mentioned operations?
View 2 Replies View RelatedProgramming :: (BASH) How To Read Multiple Lines From Text File
Mar 11, 2011For example, I have a text file with data which lists numerical values from two separate individuals
Code:
Person A
100
200
300
400
500
600
700
800
900
1000
1100
1200
Person B
1200
1100
1000
900
800
700
600
500
400
300
200
100
How would I go about reading the values for each Person, then being able to perform mathematical equations for each Person (finding the sum for example)?
Programming :: Bash Scripting...read A Value From A File Then Assign To Variable?
Feb 27, 2011At my wit's end I can't find anything that I understand well enough to use. This is for a Unix class, we are working with shell scripting. File1 has 5 in it and File2 has 100 in it.The teacher wants us to read the values then do the math. This is what I have so far:#!/bin/bashvar1='cat File1'var2='cat File2'var3=`echo "scale=4; $var1 / $var2" | bc`echo The final result is: $var3
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