Programming :: Iterate The Content Of A File In The Shell Script?
May 29, 2010
i need to check group of URLs and there https requests from browser. Recently i got some command line web browsers to know the HTTPS status of the URL like curl, wget etc... Now all of i need to do is write a shell script. I will put all my URLs in a text file and my shell script should read each URL one by one and log the status along with the corresponding URL.
Sample output:
./myscript.sh url.txt
1. site - 200 OK
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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 $1}' user.txt)
[code]...
One text file with two columns in it, I need to iterate through the file and print the different columns each time
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Jul 16, 2011
I am calling a URL from shell script and passing few argumants,Here i have to pass file content as one argument.How can i pass file content through URL.
eg:
content=`cat /Users/test1.txt`
open http://localhost:8080?filecontent=$content
[code],...
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Jul 24, 2011
This is an slice from an other wise successful script. What i need it to do is print one <tr> then print <td>$stat_array</td> fours times, quit print a </tr> then print another <tr> , prints the next four $stat_arrays in @stat_array, and so on and then a </table>.What it does is print all eight $start_arrays then a </tr>
Code:
my @table_header = ("Process", "Region_Permission","Region Violation","Message Type");
my @stat_array =("ibfarm102 - localtick" ," Greenwich" ," hibmis100 - procHKHD2 - Hongkong" , "PidMonRsp" ,"
[code]....
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Feb 28, 2011
My employer issues pdf files with everyones work schedules. I copy the content and save it as plain text in a file called unformatted (hope to be able to automate this step someday). Im working on a SED script that reduces unformatted to only display what I want to see and saves the result in a file Iïve named formatted. After that I have to manually copy formatted and save it with that days date as a filename e.g. 2011-02-25 or whatever day is scheduled in the pdf, for use on a mobile device (Nokia N900). I noticed that the date occurs on certain lines in the file so I added a line like:
sed -n 's/^Date: (201[1-9])/([0-1][0-9])/([0-3][0-9]).*/1-2-3/p' < unformatted >theDate
That creates a file theDate with the date in it that I wish to use as the filename for this particular instance. So I would like to skip the file formatted all together and have the sed- script write to a new file using the content of the Date as a filename, but how do I make that happen? And of course it would be more elegant if I could skip the intermediate theDate file as well.
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May 28, 2010
I wanted to copy one file to multiple new files. I have an idea to write a script and do the operation. But here i m looking for any particular command to do this operation.
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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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Apr 25, 2011
go about developing this add-on. i am testing this on my xbmc-live set-up; i am fairly affluent in bash/ c but unfortunately i dont have experience with python.i trimmed the data using this bash 1-liner so the output looks like:
Code:
xbmc@XBMCLive:~$ wget -q --output-document=- www.google.com/movies | sed -n 3p | tr '<' "
" | egrep "(title_bar|id=link_1_theater|class=info|mid=|Rated|class=times|fandango)" | grep
[code]...
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Jun 21, 2011
I a csv-file (A.csv) with a total of 4.600.000 lines. Thats to many and only a few is necessary. I have a txt-file with 150 lines (X.txt) (all lines is dataset from a mainframe and looks like abc.def.123.456. How do I remove lines from A.csv where none of the dataset from x.txt is present?
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Oct 30, 2010
How can I write to a file multiple times using fwrite without affecting the previous writes?The method shown below accepts a file name, buffer and offset. The method opens the file in reading/writing mode and writes the content of the buffer at offset.
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Nov 12, 2009
I'm woring on a personal research project and would like to know if there are lilypond parsers for python available or I'll have to create my own. Just in case you are wondering: I don't need to typeset the content of the lilypond file, just understand what's written in the file (what notes, what duration, when in time to play each one, etc). [url]
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Apr 12, 2011
If you have the value 100 in File1 and the value 5 in File2, how do you write a script to divide the 100 in File1 by the 5 in File2 in Linux Bash Shell?The operating system I am using is Ubuntu 10 and object is to write a script to accomplish this task.
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Jul 9, 2009
parsing xml file using shell script and generate report in a PDF file
Xml file input:
<report>
<student name="x" father name="x1" class="first" Address="xyz">
<property name="sports" value="yes"/>
<property name="drawing" value="no"/>
[code]....
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Aug 21, 2009
I'm trying to read content of file to variable and use this variable in for loop. The problem is, when I have c++ comment style in file - /*. Spaces in line are also interpreted as separated lines.
For example:
Code:
Changing $files to "$files" eliminate these problems but causes that whole content of variable is treated as one string (one execution of loop).
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Feb 7, 2010
i want to close the program if the content of the file /tmp/file_name is 1 (just the number 1).
dont need to check all the time, just when start the program.
something like this:
Code:
"read the /tmp/file_name"
"check if the content of the file_name is 1"
"if not, do something"
what i need is very simple to do in shell script:
Code:
go=`cat /tmp/file_test` # "cat /tmp/file_test" read the content of the file_test
if [ "$go" -eq "1" ]; then # if the content of the file_test is 1
echo "ok, ready to exit now"; # now i can put the exit command
fi
but i dont know how to do the same thing in C...
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Mar 12, 2010
So my firefox's profile.ini file looks like this:less .mozilla/firefox/profiles.ini
Code:
[General]
StartWithLastProfile=1
[code]...
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Apr 7, 2010
I am trying to execute a 4GE file using command something like this "/usr/bin/ksh path of the file with some arguments " ex: /usr/bin/ksh /home/abc.4ge S "./xyz" . I am able to execute the 4GE without this "/usr/bin/ksh" specifying in the command which basically runs in ksh shell itself. But when i try to run it exclusively using the path of the shell it gives me an error something like this "/usr/bin/ksh: /home/abc.4ge: cannot execute". I did check the permissions and all the file has execute permission.
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Nov 10, 2010
Code:
function forcd
{
[code]...
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Oct 16, 2010
i have a file containing contents as
1 2 3
2 2 3
11 2 3
now i want to delete the line which first column content is 1. so, if i pass the parametere 1 to function delete_row. is should remove the first row as
2 2 3
11 2 3
and then write the contents in file.
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Sep 6, 2010
I did a select on my db and now I need that this if consult return true for me salve the columns information in file. How I do this in Shell?!
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Jan 21, 2009
I have a file that's supposed to be growing in size 24/7. I want to check every 10 minutes via cron that it's actually growing. If not, send an email. Does anyone know how to write a script to do that?
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Mar 4, 2010
I am beginner in this business of shell script and I have no idea how to do the following: I would like to replace the lines of my file that contains 'CFL=' by 'CFL=0.5'. Note that I want to replace the full line meaning
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Feb 23, 2011
I am trying to search particular directory which has files with extensions like .html,.mp3,.xml etc I have a list of such files What I am doing in my script is
for file_name in `find /home/ -name index.html -o -name song.mp3 -o -name help.xml`;
do
if [ $file!='' ]
then
[code]....
I have around 100+ files name with some particular extension , this code works fine if the directory name does not have any special character in it like " "(white character) .
It is failing to give the output. IF I run the find command on the console the I am getting the correct file name with location
/home/user1/public_html/mediawiki/config/movie.mp3
/home/user1/public_html/mediawiki/movie.mp3
/home/user1/public_html/mediawiki/pop.mp3
/home/user2/public_html/index test/pop.mp3
/home/user2/public_html/index test/web.xml
/home/user2/public_html/song.mp3
If I echo the file name from the script Then output is little missed match when a directory name has special char like " "
/home/user1/public_html/mediawiki/config/movie.mp3
/home/user1/public_html/mediawiki/movie.mp3
/home/user1/public_html/mediawiki/pop.mp3
[code]....
I am not sure what is wrong with script or my code .. Does shell have un-controlled behavior of manipulating the output of any command.
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Aug 10, 2010
I am writing a shell script to delete a file if it exists.
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Mar 1, 2011
Write some simple script?
Heres what Im trying to do:
-Qjackctl has a config file which is modified each time QjackCtl is shut down. This means that whatever preset is in use when QjackCtl closes is written into the QjackCtl config file as the DEFAULT PRESET, for the next time QjackCtl starts (or at least this is how I understand it).
-I want to edit a specific line in the QjackCtl.config file, which specifies the DEFAULT PRESET. Obviously its easy to do manually, but I want to do it using a shell script which runs automatically on StartUp so that QjackCtl starts every time with the same DEFAULT PRESET, NOT the last one used.
-Unfortunately Im not at my Linux system right now (which is KXStudio/Kubuntu), but I believe the QjackCtl.config line looks something like this: DEF_PRESET=alsa (where alsa is the name of the preset)
PRESET1=alsa
PRESET2=firewire
I want a shell script which changes the line DEF_PRESET=alsa to DEF_PRESET=alsa, even when it may currently exist as DEF_PRESET=firewire due to occasions when firewire was the active preset when Qjackctl was last closed. I notice that the application in KDE that enables the user to set which applications open automatically on StartUp also allows the user to select shell scripts.
Ive done some research, as a beginner, and Im led to believe I might need to use AWK and/or CHMOD. I could have a go at writing a shell script but Im always wary about experimenting with StartUp scripts/operations because obviously if I get it wrong and make my system unusable, then because its going to run first thing on each boot, Id have great difficulty disabling it.
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Feb 12, 2010
My rquirement is I have a flat file with lot of lines on it.example:
line1
line2
line3
[code]....
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Sep 16, 2010
I have such a file(test.txt):
abc 123 456
abc 256 145
axd 125 225
[code]...
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Apr 2, 2010
I am a novice to the shell script. In my system from db server the log files are enerating with the name log1.txt,log2.txt..... It is capable of keeping 10 files at a time in dir called /db/sis/log1.txt. I want to copy the log1.txt to another directory when ever it generating by attaching the time stamp to it for the back-up purpose. this files will be there for a period of 24 hours. after that the back-up dir should be cleared and it start copying again the fresh file from the same dir.
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Jul 3, 2009
I am trying to find / write a shell script that will go through a file organized like this (but with thousands of lines)...
93,5.00,"contig00002",169,83,"jgi|Brafl1|100379|fgenesh2_pg.scaffold_359000019"
579,1.00,"contig00003",3,380,"jgi|Brafl1|114745|estExt_fgenesh2_pm.C_1200006"
450,5.00,"contig00007",2,352,"jgi|Brafl1|274326|estExt_GenewiseH_1.C_8420008"
...and check the region of each line between the second and third pipes (the 6-digit numbers) against the values in the first column of a separate text file in CSV format like this...
274326,"Wnt family of developmental regulators"
114745,"FOG: Hormone receptors"
100379,"Transcription factor tinman/NKX2-3, contains HOX domain"
...and when they match, replace the value to the right of the third pipe (e.g., fgenesh2_pg.sca...) with the value in the second column in the CSV file associated with that number.
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Jun 24, 2011
I'm writing a script and I have doubts on how to assign values to an already established variable. The value for the vatriable would be coming from a file with three columns. I'm using the awk command for this. Am I doing it correctly? which of the following two ways is the better one or if both are wrong which one should I use?
#!/bin/nsh
inputfile=$1
rolename=$2
[code]....
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