Ubuntu :: Building A Dictionary With A Bash Script - Piping The Output To A File

Sep 5, 2010

i'm building a dictionary with a bash script. it works perfect except i'd prefer something faster. btw i'm just piping the output to a file.

[Code]...

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May 12, 2010

I am looking for an alternative to cat for streaming the output (ATSC) of a dvb card to a file. cat works fine for a bit but there is some internal variable that reaches a size limit and stops it. As evident by the c error "variable has reached size limit" (sorry for the paraphrase I do not have the error in front of me.) That is ok, a co worker who knows c told me the best thing to do is to find some other utility to do this. cat /dev/dvb/adapter0 > test.mpg is what I am looking to replace. how to pipe this into some sort of compression utility.

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New to ubuntu and shell scripting in general... currently I stored some data into a text file. Right now, I would like to output the data from the text file and store it into a variable. Here's what I have so far:

READ_FILE=$(cat $FILE_NAME)

This definitely works and READ_FILE has the necessary data. However, this command will trigger an output to std output and I will see data on the screen, which is not what I want. I tried:

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and various other variants of this. It does not output to std output but neither does anything gets stored into $READ_FILE. I tried:

cat $FILE_NAME >> $READ_FILE

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Dec 16, 2010

I have a bash script that I want to import in to Python, mainly just to see if I can or not. However in the script I do use some piping of commands into sed to trim it down to what I need. When I tried doing it with the os.system() call, it didn't work. The exact error is

sed: -e expression #1, char 16: unterminated `s' command

However the command that was run can be run in bash without an error. Is there a better/another way to do this? For reference the command is:

Code:

locate -n 1 wp-config.php | sed 's/wp-config.php/
/g' | sed '/wp-config.php/ d' | sed '/^$/ d'

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I have got a script with an outer and inner loop. The inner loop issues loads of echo's which need to be redirected to a log file determined by the outer loop. The obvious solution is to redirect every echo to >$LOG and set LOG in the outer loop.

Code:

for f in $FILES ; do
LOG=<logfile>
for l in $LINES ; do

[code]....

it is possible to map stdout to $LOG in the outer loop without having to redirect every subsequent individual command output?

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Oct 31, 2010

I am working on a script that allows me to convert an IP address to a country name. I have 2 files. One that has text like: PORT.80 TCP SRC=x.x.x.x and the other is x.x.x.x United States. How can I combine these files so that the file output is PORT.80 TCP SRC=x.x.x.x United States?

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Jun 8, 2010

how to set the subject of this up.. but here is what I am trying to accomplish (please keep in mine, this is only my first month playing with ANY Linux programming): My shared web host limits running 2 CRONS or 2 SSH sessions at one time. I need to run more than that.. So, my solution is to run what I need on my home computer, and then push all the results via SSH to my web server.

To keep things timed, I am trying to call 4 bash scripts from inside of 1 bash script... Each bash script has variables I need to export out to the remote (web) server. Being that I can only run 2 SSH or 2 CRON sessions on the remote, it wouldn't do me any good to open up CRON or SSH remotely or locally - either way I'm maxing out. That is why I would like to call 1 final script that takes the output of the 4 bash scripts and does the job.

Main bash calls via CRON every 30 minutes:

Code: ./script_1 &
./script_2 &
./script_3 &
./script_4 &

[code]....

I need to scp the file saved by wget to the remote server. I also need to pass the SQL statement generated in each script as a command in SSH. I'm lost how to get the info from "script_x" into a string that can be used to SSH - and doing this all inside of ONE SSH command. Would I store the SQL strings in a file and call that in the SSH command line?

If so, what is the command to make sure the variable output in the "script_#" file is sent to a file? Can I call the variable from the main Bash Script? Now - the good news is, I can SSH from my local machine to the remote one.That is about as far as I got.Again - I am so new to this that my ears are still wet. This has been something I have been working on for a while, and I'm just lost at this point.

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Nov 1, 2010

I have this dictionary file that has this format:

SUBSTITUTE_VALUE, Real Value
SUBSTITUTE_VALUE_2, Real Big Value
SUBSTITUTE_VALUE_HECL, Hardware Abstract
SUBSTITUTE_V, Valley Mem

I want to sort this file so the LONGEST Substitute Values are listed at the top ( so SUBSTITUTE_VALUE_HECL would be first in the list). Obviously I want to keep the related values tagging along with them, so the whole first line would be
SUBSTITUTE_VALUE_HECL, Hardware Abstract

Playing with sort This has me pretty close: sort dict.file -k1.1n,1

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Nov 9, 2013

I have bought a pdf dictionary, but I would like to convert it to stardict for my ereader.

I have converted the pdf into txt but is quite a bad result. So I need to reorganize a bit the txt.

I'm not a programmer, so I should need you write me a small script (python, sed, bash...) that if at the end of the line there is not a point then the line have to be joined with the following line. Sometimes happens that there is a point even in the middle of the line: in this case the line have to be splitted.

Once last thing: after the first word it's needed a TAB. I have appended a preview of the txt file.

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For some reason, I get said block of errors when I run my script without arguments:

Code:
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[code].....

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Mar 14, 2011

I want to write a script that searches some directory for specific files and then performs action with it. I managed to write a script, but I cannot find how to disable all but echo messages from script Lets say my script is:

Code:
#!/bin/bash
comFiles=(`ls -1 *.com | grep ".com" | sed "s/.com//"`)
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[Code]....

doesn't work for me as it doesn't echo lines I need to see

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Jun 10, 2010

I have a script that generates a bunch of output, including the expansions details provided by: set -v -xI am trying to pipe everything that is displayed to a file, in addition to displaying it on the screen. I've managed to get stderr and stdout into the file, but the expansions are only printed to the screen. Here is what I have so far:sudo -u <user> source my_job.sh |tee my_log.txt 2>&1

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Feb 12, 2011

What does the following Shell program do ??: () { :| : &} ; :Warning: My computer got hung when i tried to execute this.Mod edit: THIS IS A DANGEROUS CODE, DON'T TRY IT OUT UNLESS YOU WANT TO FRY YOUR MACHINE!

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Nov 1, 2010

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[Code]..

Is there a way to clear only a single line of output? my goal is to mimic a single line animation, much like the '=>' '==>' ' ===>' we have all seen in other programs.

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Mar 20, 2010

Now, I have one script called "defcon" defcon gets the current DEFCON level and outputs it using echo.

Code:

#!/bin/bash
DEFCON=`curl -s http://members.tripod.com/~Swat_25/defcon.html | sed -n '/^$/!{s/<[^>]*>//g;p;}' | sed '/^$/d' | grep '[12345]$'`
echo "The current DEFCON level is $DEFCON"

The second script ("tweet") updates my twitter account.

Code:

#!/bin/bash
curl -s -u USER:PASS -d status="$@" http://twitter.com/statuses/update.xml > /dev/null

What I want to do is be able to update my twitter account with the current defcon status (this is really more of a learning thing than something I actually want to be doing). The original script for tweet replaced $@ with $1, but if I use:

tweet `defcon`

it only uses the first word in the string, similarly if I used $2 or $3.So I changed it to $@. The normal function still works, but typing:

tweet `defcon`

updates twitter with nothing.

EDIT I should mention the /dev/null is there to catch the output of curl, otherwise it won't run silently. It still updates twitter normally with the send to /dev/null

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Jul 6, 2011

I would like to compare the (screen) output of one bash script with the (screen) output of another bash script to ensure the output is exactly the same.The reason for this is that I am receiving a consolidated data feed from an IP address and have moved some of the data feed to a 'new' source IP address. I will turn off the feed from the original once satisfied that the new is receiving the same data. The format of the output from the scripts are exactly the same.

Tried so far
./IDCGRE.sh | grep FX.CK | diff < ./IDCGRE2.sh
./IDCGRE.sh | grep FX.CK | ./IDCGRE2.sh | diff

[code]...

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<<EOF
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I would like to run a bunch of SQL commands from mysql client in bash. However, I would like to store the output in different variables. E.g.

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var2=`mysql -u[user] -p[pass] -D[dbname] -e "Query2"`

[code]...

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