Ubuntu :: Sort The Output To A Text File So That It Prints To The Text File At 1 Process Per Line?
Feb 6, 2011
im trying to output a list of running processes via a shell script. At the moment i got this which outputs the processes to a text file called out.
echo $(ps aux) >>out
The problem is though, the processes are all just one big block of text which makes it hard to read. Does anyone know how to sort the output to a text file so that it prints to the text file at 1 process per line? I know its probably simple but im very new to linux.
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Jan 13, 2010
I have to delete a certain line of text from the a textfile via ubuntu's shell scripting.I have done research, and it seems that most people advocate the usage of sed /d option. sed makes does not edit the text file. Hence, most options I discovered involved the use of a temporary variable/textfile and then overwriting the old file with the temporary new file. Is there anyway whereby I can bypass the use of temporary storage containers? I hope there is any magical combination of commands to edit the file directly.
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May 3, 2010
a sed command to add a text before line number in text file? I have text file with 500 lines, and i want to add 3 more lines with text after line 300, OR before line 302, isn't no problem.
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May 5, 2011
I have a script that is supposed to run after a job is sent to a printer that prints a text file to disk. It is supposed to turn that text file in to a PDF. How I do this is my making a fifo /dev device that cats the print job to lpr and then runs my script. The script works expect for 1 thing. I have to use dos2unix to remove some extra characters that shouldn't be in there. I've also tried used sed and that didn't work either.
I should say they both work from the command line, just not when used in the fifo/dev. I know there are weird things that can happen when not running a script from the command line, and maybe I'm doing this all wrong. Part of my script works fine, but dos2unix doesn't work in my script. Sed also doesn't work in my script. But a2ps works and so does ps2pdf.
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Aug 23, 2011
I need to be able to convert HTML email messages saved as text files (.eml or .msg) to PDF documents, one PDF per email, retaining formatting and images.
Are there any Linux tools that will allow me to do this from the command line (so it can be scripted)?
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Jan 28, 2009
I have a text file called file1.txt containing many lines eg.
line1
line2
line3
line4
line5
line6
Then i have another text file called file2.txt contains
3
5
6
Is there a command to remove the lines in file1.txt based on the keywords in file2.txt? note: It should remove line3,line5,line6 based on 3,5,6
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May 14, 2010
What is the command to sort a text file by the second word?
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Oct 18, 2010
I have two txt files containing x and y coordinates: xcoord.txt & ycoord.txt. I need to open them; read them line by line to get each coordinate; then each time I need to update Xs and Ys parameters inside another file called "dc.in" with the grabbed values.
Finally each time I need to run two exe files ( dc_2002 and st_vac) and produce corresponding output for each Xs and Ys ( dc.in is an input file for this exe files)
I have written the following code but it does not work:
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Apr 1, 2009
Was wondering if any perl guru's could help me with a quick log file adjustment. I have a text file that looks like so (tabs and newlines are revealed so you can see what separates the data):
There are maybe 100 lines of text in this file at any given time. I need to delete all duplicate lines only looking at the first bit of text prior to the first tab. It doesn't matter which one gets deleted as long as there are no two lines that begin with that same text at the beginning before the first tab. So in this example, either the fist line "1234" or the last line "1234" would need to be deleted. I already have code in my script that opens the files - I just need the code to read the text into an array and the part that would find matches based on the above criteria, and make the deletions.
If it would be easier, I can even do a system call and use SED (v4.1.5) and/or AWK (3.1.5) instead.
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Jul 7, 2011
bash 3.1.17(2) I'm trying do write a shell script which must operate on each line of an ASCII text file. So, all the code must be inside a loop, and inside the loop, the first thing should be to read the next line from the file. I have the bash read command. But it reads from stdin. Any way to make read from a file?
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Apr 13, 2010
I'm having a slight dilemma on reading data from a text file and outputting it into a table then displaying it. Basically I'm writing a shell script that takes information from text files then outputs the data into a table with 4 headings. The extracting of the data is fine, but creating a table i'm having problems with. My code extracts the data outputs the string to another file which works fineThe text file looks like this
mr smith 1 purchase oct 2007
mrs smith 2 purchase nov 2006
i want it to look like this
[code]....
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Jun 26, 2010
I've got a command in a shell script:
Code:
php ./script.php > output.txt & echo $! > script.pid
This results in my script launching as a background process with output routed to
[code]...
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Mar 4, 2010
it compares two files using md5... if they are same , a corresponding character is output to a text file .. but the problem is it gets appended by default.. is there any way to output in a normal way because the text is a message and it should be of proper format
here is my script
Code:
#!/bin/bash
g=`tail -1 new.txt|head -n 1`
array=( a b c d e f g h i j k l m n o p q r s t u v w x y z )
for((i=1 ; i <$g+1 ; i++))
[code]....
the message is supposed to be hello , i need to get rid of the endlines somehow..
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Oct 21, 2010
I just modified the grub file in 10.10 in order to see what the text line boot is like. Well now I want to go back, but when I try to gedit /etc/default/grub it gives an error that he couldn't display. How can I edit the file to go back to gnome??? I am on macbookpro 6.2 tripleboot Mac OS 10.6, Win7 and Ubuntu 10.10.
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Dec 8, 2010
Using the latest version of Ubuntu desktop on an emachine t5062 if it matters. I have a text file of keywords that is one-three words line after line for like 5000 lines. How would I go about adding a word to each line.Aside from typing it in or copying and pasting.If it can`t be done with Gedit I am all for using another program.
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Nov 5, 2010
Im using this script to save a backup to a NAS, however i want to print the result to a file that later can be mailed to me.
Code:
tar --totals -czf - /var/www | ssh user@host "cat > /backup_path/`date "+%Y-%m-%d"`.tar.gz"
i have tried just adding ">> logfile.txt" at the end of the command, but that obviously does not work. How should i do this?
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Aug 24, 2010
I'm trying to figure this error message out. This little script is supposed to tweet my laptop's IP address, as a cron job, I'm hopeful that it would do so even if it's stolen. This is a variant of one that works, but this doesn't, and I can't see a difference in the curl line of either one.
Code:
#!/bin/bash
user="xxxxxx@xxxxxxxxx"
pass="xxxxxxxxxxx"
wget [URL]
TWEET=`sed -n 1p index.html`
curl --basic --user "$user:$pass" --data-ascii "status=$TWEET" "[URL]"
rm -f index.html
exit
This is the error message.
Code:
curl: (6) Could not resolve host: status=66.183.103.67; Cannot allocate memory
{"request":"/statuses/update.json","error":"Client must provide a 'status' parameter with a value."}
Why does curl think the status is the URL?
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Nov 6, 2010
Say I have a text file like:
Code:
1
3
4
How would I use ksh to put the number '2' into the second line of that file?Okay it's not bash, it's ksh because this computer is OpenBSD
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Dec 31, 2010
I have a text file called namelist.wps. In this file there is a line that reads:
Code:
start_date = '2010-12-26_12:00:00', '2010-12-26_12:00:00',
I have to automatically update the year, month, and day of month for this line without changing the rest of the file. Here is the script that I have:
[Code]....
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Jul 28, 2010
How to output to a text file the compound command:
Code:
find -type f -print0 | xargs -0 grep -l "desired text"
I have not been able to find the answer.
[code]...
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Apr 12, 2010
I'm having a slight dilemma on reading data from a text file and outputting it into a table then displaying it. Basically I'm writing a shell script that takes information from text files then outputs the data into a table with 4 headings.he extracting of the data is fine, but creating a table i'm having problems with. I think it is possible to do it using the awk function, but so far i'm having a lot of difficulties.
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Oct 18, 2010
I've created a script to test network speeds but I've run in to a little problem. The command outputs this:
Code:
Client connecting to 192.168.111.230, UDP port 5001
Sending 1470 byte datagrams
[code]...
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Aug 5, 2011
Am having issues getting the output from a script to be logged in a file. I need the script to output both the stderr and stdout to the same text file.
At present I have the following script:
Code:
#!/bin/bash
echo TR3_1 > printers.txt
snmpget -v 1 -c public 10.168.**.* SNMPv2-SMI::mib-2.43.10.2.1.4.1.1 &>> printers.txt
[Code].....
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Feb 3, 2010
The problem that I am having now is that I can not is the text when the menus come up or when opening a file from the cd or curraculum on line. I have cairo-dock running and a conky running. Could this be the couse of my problem? I was going to uninstall and reinstall packet tracer but I am unsure on how to uninstall.
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Dec 30, 2010
I have a text file called namelist.wps. In this file there is a line that reads:Code: start_date = '2010-12-26_12:00:00', '2010-12-26_12:00:00', I have to automatically update the year, month, and day of month. I set values for the year, month, and day of month using the following code in a c-shell script:Code: set y1 = `date +%Y`set m1 = `date +%m`set d1 = `date +%d` After I do this, how do I update year, month, and day of month, without changing any of the other lines in the namelist.wps file?
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Oct 4, 2010
I want to insert the text "DB dept" in the last line of passwd file which looks like this right now
Quote:
newuser:x:717:717::/home/sacharje:/bin/bash
And I want it to be like this:
Quote:
newuser:x:717:717: DB dept:/home/sacharje:/bin/bash
I tried to do that with sed but failed, I'd like to know the proper syntex with sed to achieve this.
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Jan 28, 2010
I need to be able to edit a file from the commend line as I intend to script this operation, the file is called menu.lst The original is as below
Code:
titleUbuntu 8.04.3 LTS, kernel 2.6.24-24-generic
root(hd0,0)
kernel/boot/vmlinuz-2.6.24-24-generic root=UUID=b09feb23-5524-4ec4-862f-94700b968f64 ro quiet splash
[code]....
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Apr 15, 2009
I am thinking of appending something to each line in a text file with Java. I prefer not write a new file with content appended from the old one.That 'something' would probably be Time Stamp when the file is created (which is same for each line).I am not sure Java provide some easy way for it or not
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May 26, 2011
I want to know how can I add something to a specific line.. the output would be something like:
abc
def 123
ghi
Search for string "def" and add something to that line.
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Feb 6, 2011
I'm wondering how it is possible to read each line from a text file, and then store each line separately in a list, using C++?
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