Programming :: Awk+print, Create File If Not Exixt?
May 15, 2011
I having the following awk line in a script, is it possible to modify the script so that it create a the directory if it dosnt exist (similar to mkdir -p) awk -v datum="$DATUM" -v workingdir="$workingdir" '{ sub("\[.*","",$5); print > workingdir"/"datum "/" $5;}' $1
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Oct 18, 2010
I am trying to create an array that will allow me to print a list after selection such as:
1) Location A
2) Location B
3) Location C
Would you like to print selected locations? Print I have no idea how to approach this problem and don't know whether Perl, Bash or shell script would be the most useful in this particular situation.
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Apr 12, 2010
I have this code:
How can I print &FARAchieved to a file? Or, printing the whole bioReturn would be fine too.
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Feb 26, 2009
I want to write a script that returns me name of the files that begin with the specified characters. like
Script out should be
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Mar 20, 2010
why this code can't print in the while loop the content of the file ?
Code:
#include <stdio.h>
int main()
{
FILE *fp;
[code]...
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Mar 4, 2011
I am using an awk command to print a line from a cvs file.the awk command includes an if statement that filter the output-lets say i want to print all the lines that the price field is greater than 30.i have it working when i put the parameters myself.. but when i try to send them with vars it wont work..i am sending the sign of the if statement - can only be: == , < , >it looks like this:
cat file.csv | awk -v sign=">" -v field="2000" '{if($3 sign field) printf "%-12s%-12s%-12s%-12s
",$1,$2,$3,$4}' FS=,
the bold part is the problem , because when i put the sign parameter myself t works great.. i guess its a chars issue but i cant spot it
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Nov 25, 2008
How to write a shell script the would search for a phone no using at the end text file using sed or awk and store it in a varaible or print it.
The text file is in this form
The first line may take any form but the last line will always be Firstname Lastname:KEN:+254456789
I would like to seach for the Phone and store it in a variable and print it.
The phone no will alway be preceeded by ":+"
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Nov 27, 2010
How do I do this?The script below obviously dosn't work.
#!/bin/bash
for u in $(awk '{print $2}' user.txt)
for i in $(awk '{print $1}' user.txt)
[code]...
One text file with two columns in it, I need to iterate through the file and print the different columns each time
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Aug 13, 2010
I am trying to compare a list of patterns from one file and grep them against another file and print out only the unique patterns. Unfortunately these files are so large that they have yet to run to completion. Here's the command that I used:
Code: grep -L -f file_one.txt file_two.txt > output.output Here's some example data:
Code:
>FQ4HLCS01BMR4N
>FQ4HLCS01BZNV6
>FQ4HLCS01B40PB
>FQ4HLCS01BT43K
>FQ4HLCS01CB736
>FQ4HLCS01BU3UM
>FQ4HLCS01BBIFQ
how to increase efficiency or use another command?
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Mar 15, 2010
I have a problem when using awk:
e.g: awk '{processing text}' File1 > File2
But when I'm processing the File1, I want to print out some messages to the screen (not the File2). How can I do that?
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Dec 25, 2010
How can I print the current time of my system with a batch file. My os is ubuntu.
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Feb 7, 2011
I have a problem with arrays in awk. What i want is to take some data from a file (ssh log) and print it to a html table. I have managed to print some stuff (user logged in and how many times they have logged in) What i want more is to take all the ip that each user logged in from and print it in a row next to the username and times (in the code i typed blabbla where i want the ip to be shown. How do you think i should approch that, multidimensional arrys maybe?
Code:
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Nov 11, 2010
What I plan to do is, create a duplicate file of a text file, and then append some text into the new text file.
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Oct 4, 2010
Its my first post in here so please be patient I am trying to use regex in perl script to detect allowed words from the file and then print output to the screen.
As an example : I have text file with orders and returns :
Item2-SKU-2-11.08.2010-online
Item3-SKU-3-11.09.2010-return
Item4-SKU-4-11.09.2010-store
My question: is it possible to make sure that i am ony outputing to the screen orders based on few conditions like Item,order form e.g. online.And is it possible to have multiple matches (Item2 only diplay if ordered online etc)
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Oct 7, 2010
can any body tell me how to creat a log file in linux...when i run the script the details must go to log file...
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Aug 14, 2010
Just installed drivers for Lexmark pro200 - S500 series. However although it is recognised by the system and has a tick by its name, And tells me it is connected via usb file goes to print que but will not print. Also tells me it is Printing - localhost! is this correct?.
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Jan 17, 2011
I am using NetBSD-5.1.1. I wanted to know what happens internally when we create a file in linux. ( In general )?The header file STDIO.H present in "src/include/stdio.h" contains a "FILE" structure with various members like _p, _cookie, etc.2. I wanted to know how does internally memory gets allocated for them.?
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Aug 6, 2010
I am using RHEL 5.0 and I have some trouble with a CSV file.
What I need to do is to grab all the elements from the 3rd column and place them each on a new line in a different (new) file.
For example, if the CSV file is code...
I tried to threat each line as a string and grab the 3rd element, but for some reason it fail.
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Dec 21, 2010
I have a file with 5000 lines. it is a list of books authors, series and titles. all lines start with the author names, than there is a dash (-) than the series name, a dash again and the title of the book.
The problem I encounter is that sometime there is a series, sometime not, and as I try to enter this list in a database, I wanted to create a cvs file to import into mysql.
ex:
The best would be to be able to add in the second line, a "space dash space" just after the author name, but how to make sure it does not do it to the first line as well.
If I could separate all line with 2 dash, (grep ?) then I would be able to do a simple replace, and change the single dash into two.
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Oct 14, 2009
is there a way to save/create a file with fopen so the file is in the user home directory.Normally I'd do fopen("/home/me/myfile.... but me might change from one user to another. So can I so some sort of switch so it saves to whoever is using.
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Oct 18, 2010
Lets start with useful information:I need to create a hidden file for windows/linux using my c++ program.The file will be created on a mp3 player (fat32 file system) and the name will be ".myFile", so the file will appear hidden onux system (period before the name).The problem:Using windows I'm able to see this file, cause the "hidden" attribute is not set.
On Windows API there's a function to do that (CreateFile), then I was trying to find a compatible function to set the hidden attribute, but there's no success until now.Could someone show me the way? There's a program to change these attributes: mattribI will try (again) to find the source code, if someone knows where could I find it
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May 12, 2015
I am using GTK and C and on my application I have a Drag and drop feature.
Code: Select allicon_view = gtk_icon_view_new_with_model(create_and_fill_model(pALP));
g_object_unref(pALP->list_store); /* destroy model automatically with view */
gtk_icon_view_set_selection_mode(GTK_ICON_VIEW(icon_view), GTK_SELECTION_SINGLE);
gtk_icon_view_set_reorderable(GTK_ICON_VIEW(icon_view), TRUE);
gtk_icon_view_set_text_column(GTK_ICON_VIEW(icon_view), COL_DISPLAY_NAME);
[Code] ....
The drag and drop works fine but when I exit the application and enter again, the changes of the drops are not saved, meaning the new location is not saved. I understand that in order to save the location of the drops I need to create a menu file and write some xml, But how do I do this? it there another way?
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Apr 14, 2011
I've written an Expect script that assists with change management on Cisco devices. The script creates log files for pre-change, the change itself, and post-change. Each log and its commands is triggered by a ! command. For example:
Code:
./dochange.exp hostname
<script spawns bash, user SSHes to hostname>
!PRE
[code]....
All of this works fine. My big hair-pulling hiccup is that the resulting log files are filled with raw backspace characters! I am using log_file to log the output from the script. I stop and restart logging with a new file when needed. However, the log files are pretty much unusable. After doing some research, it looks like log_file sends output to the file in real-time, unbuffered. When I hit a key, it's immediately sent to the log. What I would like is for only the resulting string to go to the log. If I start to type 'reload' and instead type 'show run', I don't want 'reload' to be listed in the log at all.
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Jan 4, 2010
i am trying to generate a linux executable data (bin data) from my java source code.
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Sep 25, 2010
I need a script that can do this: A script that searches all directories and subdirectories for .html files When a .html file is found it creates a index.html file in that folder. It then edits the index.html file and inserts links to all of the .html files that are in that folder into the body. If no .html files are found, it searches for folders. It then creates a index.html file with links to all of the folders.
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Feb 3, 2010
I am using C. I have a fuction that returns a string
Code:
I need to format this string so that I can create a text file like so:
So I'm trying:
Code:
But I get errors like:
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Mar 31, 2011
I'm running Apache on Centos 5.5, with active SELinux, and I'm having trouble getting my Perl script to write a file that doesn't yet exist to a folder which has the proper security context.
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Oct 1, 2009
I am working on a script to convert a comma seperated text file into html code line by line. The text file is like so:
Code:
link url, image url, description and I want it to output this:
Code:
<td><a href=�link url�><img src="image url" alt=�description" /></a></td>
Here is what I have so far:
Code:
#!/bin/bash
var1='<td><a href=
var2='><img src="'
var3='" alt=�thumbnail image" /></a></td>'
[code].....
It puts the entire line into the html so its no good. I'll probably need to use awk (I think).
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Apr 22, 2010
My question deals with me creating a name pipe (file) in the my /group directory called chat.I then have to write a script to read from the named pipe and save data into a file called chat.log until the words End of File are passed to the program.
-When I created the named pipe file (chat) I used the mknod chat p command..Is this the correct command to create a named pipe file? -Then I'm having trouble with my script and how to make it run until the words End of File are entered in. This is what I have so far.
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Nov 4, 2010
I've found myself in the situation where I need to create a menu in gnome/kde for a directory structure full of documents.The directory structure looks like this:
Code:
DOCS/
.. REFERENCES/
[code]...
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