I have a script in the works that reads an MP3 file and gets the track length. Trouble is, it gives me the total seconds, like this:
Sample Track.mp3 = 225.55 seconds
What I'd like to have is that 225.55 converted into minutes:seconds format (in this case, 3:45). How can I do this?
I have a script that creates a textfile with ip addresses and ports, but the ports are in hex format so they need to be converted.
Currently I have this code:
Code:
I'd like to have the second column in decimal instead of hex, like this:
Code:
Is there any way to do that with awk, preferably in a oneliner? Would printf be an option?
I just need to perform a simple operation of subtracting two numbers - that aren't whole numbers, i.e 200.56 - 67.24attempting to use expr i merely get "expr: non-numeric argument"
View 3 Replies View Relatedmain()
{
unsigned long long tsc_start, tsc_end;
tsc_start = get_tsc();
// execute some code
[code]....
snappy title to grab attention. maybe not stupid, but bleeding difficult to use, talk about a non-obvious, non-intuitive interface; I want to enter a hex value, and have the calculator convert that to decimal. So, I use the pull-down, choose 'hexadecimal', enter the hex value, then change the pull down to 'decimal', expecting to see the decimal (base 10) value. What do I see? The display just adds the hexadecimal base to the end of the hex value I just wrote! Where's my decimal (base 10) number damn it? I can't for the life of me work it out.
View 4 Replies View RelatedCode:
#!/bin/bash
echo 'obase=2;10'|bc
[code]...
compile binary package for bash script?
View 2 Replies View RelatedI followed a guide with the hopes of my computer waking from suspend after a defined number of seconds (for testing purposes, 4 seconds).
Per the guide, I've added a file: /etc/pm/config.d/00-use-suspend-hybrid
Code: Select all# Always use suspend_hybrid instead of suspend
if [ "$METHOD" = "suspend" ]; then
METHOD=suspend_hybrid
fi
# The delay after which hibernation gets triggered (default: 900 seconds, 15 minutes):
PM_HIBERNATE_DELAY=4
After four seconds of suspend, it continues suspending, and doesn't go into full hibernate.
i have just registered to this forum so forgive me if i ask wrong question at wrong place.i have a server with OS: fedora 7 Hardware: SuperMicro X7DVL-L
[root@ ~]# /sbin/lspci
00:00.0 Host bridge: Intel Corporation 5000V Chipset Memory Controller Hub (rev b1)
00:02.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x8 Port 2-3 (rev
[code]...
i'm trying to write a bash script to upload an image to [URL], but i can't get i working properly. Everytime i try, the html returns me a error saying "Upload is disabled during short maintenance work (ETA 10 minutes). Brb!", while from the browser everything works fine. This is my current command line:
Code: curl -L -b cookie-pix.txt -c newcookie.txt www.pixhost.org/cover-upload -A "Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)" -F 0=@/home/admin/Desktop/karm.jpg -F content_type=0 -F press=Upload And this is the html of the form:
[Code]....
I just noticed there doesn't seem to be a decimal point button on the calculator (gcalctool 5.32.0) when it is in programming mode. I'm using Fedora 14 (32-bit).
View 4 Replies View RelatedI'm writing an if statement where a variable is a number such as 14.05 (this is actually a temperature) and I want to compare it to a predefined value, sample code below:
Code:
I have all sorts of errors regardless of how I do this (double quotes, square brackets). The best idea I've had is stripping off the decimal place so it's a 4 digit number (e.g warning=1503 and DEV_TMP=1405) however this seems a little unnescessary and I'm sure there's an easier way of achieving the same thing.
I have a usb wireless card called "edimax ew-7318" i used it for a year and it was great- worked out of the box. recently i've been having repeating disconnect problems every few minutes or seconds it will disconnect and then reconnect again
In system log i get:
Code:
It seams like a physical hardware problem but i cant find any physical fault on the card itself.
I would like to subtract the end time with a start time in bash. How can I do it?
Here's a script of example of what I want:
I'm using bash script now,and I want have a script that can do like this: first ,tell me it will shut down ,and then shut down.My script looks like this:
#!/bin/sh
/usr/bin/curl $stop_page
shutdown -h now
[code]...
I want to make a very simple bash script to run a command for a user-specified number of seconds and then kill it. The purpose is to limit the amount of time the program runs.Example in pusedocode:
Code:
#!/bin/bash
#$1 is the user input number of seconds
[code]...
Linux command to find files changed in last n seconds. shell script,that we can run from cli or command.
View 3 Replies View RelatedI'm trying to get cron to run a bash script every 15 minutes to change my desktop background
running crontab -e I added
Code:
*/15 * * * * sh /home/ME/Documents/scripts/background.sh
(at first i didnt have the sh before the path of the script but read somewhere i needed that) But it doesnt seem to be running my script works fine if ran straight from the terminal so Dont think thats the problem.
MBM (image psion format), please how to convert this to regular jpg format? I would like under command line because it is for a scripting
Code:
paul@debian:~/mypsion$ psiconv Skizze
Unknown output type: `TIFF'
this results in no output
SO I'm not talking about changing the file permissions, The only thing I could find on google was this [URL]Basically can you convert your bash script into a executable file, One that you can't open in text editor?
View 2 Replies View RelatedI'd like to write a bash script to convert all of the .mpg files in a directory to .avi files. The ffmpeg part of this produces the kind of file that I want, but rather than changing the name of the input and output files each time that I run the script, I'd like to automate it. I've tried this script, but I get an error "command not found".
#!/bin/bash
cd /home/michael_s/golf_temp
1 for i in 'ls *.mpg' ; do
/usr/bin/ffmpeg.exe -i /home/michael_s/golf_temp/"$i" -map 0:0 -map 0:1 -pass 1 -vcodec mpeg4 -vtag xvid -f avi -b 1100k -vol 384 -mbd rd -s 640x480 -aspect 4:3 -acodec libmp3lame -ac 2 -ab 128k /home/michael_s/golf_temp/"$i".avi
rm -f /home/michael_s/golf/temp/"$i".avi
/usr/bin/ffmpeg.exe -i /home/michael_s/golf_temp/"$i" -map 0:0 -map 0:1 -pass 2 -vcodec mpeg4 -vtag xvid -f avi -b 1100k -vol 384 -mbd rd -s 640x480 -aspect 4:3 -acodec libmp3lame -ac 2 -ab 128k /home/michael_s/golf_temp/"$i".avi
done
fi
quit
I would like to know how do I print the line # in a script. My requirement is, I have a script which is about ~5000 lines long. If there are any errors happen I just exit. And I would like to add the line # of the script where the error happened.
View 3 Replies View Relatedsimple bash code:
Code:
#!/bin/bash
trap "echo 'you got me'" SIGINT SIGTERM # to trap ctrl+c
echo "Press ctrl+c during 5 sec loop"
for ((i=0;i<5;i++)); do
[Code]...
How come code behaves normally and stops when ctrl+c signal is caught and resumes, but after I use at least one timeout read in the code it looks like, if signal is caught again it doesn't pause the execution but skips the loop. If you remove -t (timeout) option from the read, both loops look the same!
So, I have this awesome idea whereby I will, every few minutes, dynamically generate a nightside view of the earth.That's the Fourmilabs sat image. I want to set it as my wallpaper. I have already written the bash script to download it and drop it into my wallpaper directory, and I'm using kcron to update my wallpaper. Here's my problem. That URL yields an image, but I can't figure out how to convert that image to a usable file format. It's OTF generated, so unlike other sites that have a format like .../image.jpg, this URL isn't playing nice.
View 9 Replies View RelatedDo I have the convert the int to a string using stringstream then convert the string to a char? or is there a more direct way?Also is there a way to tell the length of a int?
View 5 Replies View RelatedI have a config file that contains:
my.config:
Code:
Now in my bash script, I want to get the output /home/user instead of $HOME once read. So far, I have managed to get the $HOME variable but I can't get it to echo the variable. All I get is the output $HOME.
Here is my parse_cmd script:
Code:
I have written quite a few separate bash & scripts and php scripts that up to now I have run from cron jobs. However I have to estimate how long each takes to run, before running the next and so it probably takes much longer than necessary to run them all. They have to run in order.
Now there are so many I am thinking it would be better to have a master bash script that would run one after the other, but I am not sure how to get the master script to wait before starting to run the next script. Is this possible and is there a command that will make the script wait between bash and php scripts , for them to finish, before running the next?
ok so i am trying to write a batch convert script for mp3hd(do not snigger)my starting point is a script i know works i got elsewhere
Code:
for f in *.m4a; do ffmpeg -i "$f" "${f%.m4a}.wav"; done
from here
[code]....
i have a small script that takes the time in seconds(this is a very long number like 615.232145457577) and i convert it to minutes or hours by dividing by 60 or 3600 respectively. I would like to be able to get the result with maybe upto to 2 decimal values.
If i do echo "613.568787987975 / 3600" |bc -l
this gives: .17043577444110416666
How can i just get .17
I'm using mencoder to capture audio from a Encore ENLTV-FM3 video capture device. I have recently noticed that, since one week ago, when the machine was forcibly restarted due to a power outage, all recordings are slightly pitched, they play back slower than they should.
I narrowed down the problem to the following command line:
$ time mencoder -really-quiet -tv driver=v4l2:device=/dev/video1:chanlist=us-cable:audiorate=32000:alsa:adevice=hw.1:input=0:amode=1:normid=11 -endpos 00:10:00 -ovc copy -oac pcm -of rawaudio -o test-32000.wav tv://69
real 9m54.886s
user 0m5.536s
sys 0m1.740s
$ ls -l test-32000.wav
-rw-r--r--@ 1 martin martin 76800000 Mar 15 17:20 test-32000.wav
Somehow, mencode managed to gather precisely 10 minutes worth of raw audio in 9m 55s. That's not physically possible, unless the capture device's A/D converters are "overclocked". I can't think of any other explanation besides hardware failure. Can that be? Could it be that something got burnt during the power outage and now the capture device's internal clock went nuts?
Since the machine's restart, I've also noticed dmesg is flooded with entries like this:
CE: hpet increased min_delta_ns to XXX nsec
Which seem to indicate that the computer's high precision event timer is somehow out of sync. Does this have to do with the audio issue? Can it be that the audio converter's sample rate is linked to the HPET? I'm totally lost here. Has anyone bumped into something similar?