Ubuntu :: Bash Command For Counting Down To A Certain Date
Jan 6, 2010I would like to write a shell script that displays the number of days, hours and seconds left until a certain date and time. What commands would I use?
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Ubuntu :: Use The Date Command In A Simple Bash Script?
Oct 26, 2010I am trying to use the date command in a simple bash script as below:
#!/bin/sh
this_date=`date`
echo "The date is $this_date"
This script seems to work only if a surround the command with the `` characters, which I copied from another script. Can anyone tell me why this is, and how I can insert these characters from my keyboard,which only has normal quote and double-quote characters?
Programming :: Counting Variables In Bash Script
Nov 13, 2010If I read in variables entered by the user, how can I check to make sure the correct number of variables were entered? For example, after reading in a data file and making it into an array, I have:echo "To check the data, enter the first element number, last element number and step size as x y z:"read x y z.It then goes on to start a loop, but what I would like now (before the loop) is a check to see if three variables have been entered, before the rest of the script continues.
I've tried specifying the variables as $1, $2 and $3, but if I echo $#, the value comes out as zero, so it's obviously not working.
Programming :: Counting The Number Of Exit Variables - Bash
Jul 1, 2010Is there a way to count the number of errors- an exit variable $? from one function?
The output from the exit variable (either erroneous or correct (1) or (0)) is it possible to add the erroneous one ups?
Ubuntu :: $(date +%k) Acts Weirdly In A Bash Script?
Jul 14, 2011This might well be a case of "I've been looking at terminals for far too long", but here goes. In a bash script I'm writing I'd like to get the current minute of the day. Since date doesn't have an in-built format string for that, I thought I would do:minute of day = 60 * hour of day + minute of hourHowever, when the clock rolled around to 12 / 0 the value disappears from the variable. Viz:
Code:
hour=$(date +%k)
echo "hour: $hour"
[code]...
Debian Programming :: Yesterday Date In Bash Script
Jun 22, 2011I have used "FILENAME="`TZ=$TZ+24 date +%y%m%d`" in a bash script that run in openbsd. What my script does is to changes a file name to "yesterdays date". I tried to use it in a script that runs in debian but it doesnt work. Is there any other command that i can use in debian?
View 3 Replies View RelatedGeneral :: Bash - Create Folders According To Date In System?
May 26, 2011Is there any other short/easier and smarter way to do the following in Linux? code...
I need to use crontab to create folders every day and every month inside /home/abcd/dammi, /home/abcd/harrami, /home/wxyz/dammi and /home/wxyz/harrami. Can anyone help me with this?
Programming :: Bash Scripting With File Date Comparison?
Mar 23, 2011I need to be able to compare a file date with system date and delete files older than 30 days.
the file name is basically
error_log.03222011
of course the extension is the date the file was created.
Oh and before i get hammered I looked everywhere but am unable to make sense of what I found.
Programming :: Converting YYYYMMDD To Date In Bash Script?
Aug 2, 2010I need to convert strings in the format YYYYMMDD to dates so I can perform date arithmetic.
View 4 Replies View RelatedProgramming :: Manipulating A Date In A Perl Bash Script?
Mar 11, 2010I've recently inherited a bunch of files at a new job and am trying to figure out some of the problems that have constantly popped up. The one i'm getting a huge headache with results from a bash script that is supposed to change a date format from a client populated txt field to one we want defined a certain way. Everything in the script works fine, except that one function. Below is the line i'm trying to manipulate, with date examples.
sed -e 's/.0000 EA/ EA/' -e 's/ 01012010 / 01-JAN-2010 /' -e 's/ 12312011 / 31-DEC-2011 /'
The one caveat is that the first date is non-static and changes daily. It is, however, always the current date. If it helps, the second date will always be a year away from the first date.My idea was to pull the current date via perl's DATE function, but...how to do it, and calculate a year away without throwing the rest of the bash script off? Any help would be appreciated. I'm sure it's a simple solution but i know absolutely nothing about these scripts and how they were written.
Ubuntu :: Shell Script Using Bash / Get The Date Of The Process Takes Longer Running?
Mar 29, 2010I need show the number of process per user, and after the date of the oldest process per user also.
With "ps -eo user | sort -u" i get all users that are running any process. And with "ps U username | wc -l" i get the number of process that the user "username" is running.
But how can i merge both commands for do what i need? Like a FOR or something like that. There is any method of make a FOR using the list that i get with the first command?
And then for show the date of the oldest process.. with "ps U username | sort -k 4" (4 is TIME field) i can show the process of the user "username" sorting they by time. But how can i get the date of the process takes longer running?? I can get only the time, but no the date.
General :: BASH To Find Pics And Videos With No Date Taken Exit
Aug 7, 2011Is there a script to do this? I have shotwell and want to find files that are going to cause problems with automatic sorting.
View 3 Replies View RelatedUbuntu :: Terminal Bash / -bash: Ls: Command Not Found
Jun 5, 2011I got a problem with terminal, since i'm really a noob with terminal i don't know how to fix it.Everytime i type in a command it shows for example:
-bash: ls: command not found
Even the basic commands don't work... just cd <directory> and those things works
Programming :: Bash Script To Copy Modification Date From A File To His Folder?
Jul 29, 2011I need this script but I don't know how to do it I have one folder with several folders inside.On each folder a have one MKV or AVI file inside...What I need is a script to change the "modification date" of each folder to the "modification date" of each MKV or AVI that the folder has inside.
View 16 Replies View RelatedGeneral :: Write A Literal Bash Command In A Bash File?
Nov 29, 2010I create a bash script that writes another bash file. But in the generated bash file I want to write a bash command in the file and not executing it.Here's my bash file:
Code:
#!/bin/bash
cat > ~/generateGridmix2data.sh << END
[code]...
Ubuntu :: Name Of The Package For Date Command?
Aug 6, 2011What is the name of the package for "/bin/date" command. need to re-install
how can I determine that a spesific file belongs to which package?
using ubuntu 10.04 64bit
General :: How To Use The Date Command
Jun 15, 2010How to use the date command to display, for example, 10-Mar-2010 01:01:53? What's the format string?
View 2 Replies View RelatedUbuntu :: Lpr Command- And Man -t (bash Command - Print Both Sides Of The Paper Using A Printer?
Mar 29, 2010I just recently learned about the wonderful little lpr command- and using man -t (bash command) to beautifully print man pages for reference- but is there a way to print both sides of the paper using a printer so equipped?
View 2 Replies View RelatedUbuntu :: BASH: Execute Next Command Until Another Command Succeed?
Mar 19, 2010I have a big bash script ,its goal is to download movie one by one . But I often get into a problem: if this script is executed in cron,it often does not completely download the movie.I often find the movies it downloaded are several KB while the movie is actually 20MB.So I think it is because it did not wait for finishing one task ,and jump to download another.So I want to know ,is there a way to force the bash script to wait until one movie downloaded completely and then start to download another movie ?
View 8 Replies View RelatedGeneral :: Extracting Date And Time From The At Command?
Sep 10, 2009I would appreciate help with how to extract the date and time from at command jobs. From what I can tell, the date and time is embedded in the file name (/var/spool/atjobs).I'd be using this information in a (bash) shell script.
View 14 Replies View RelatedGeneral :: Pipe The Output Of Date Command?
Jul 21, 2011I need to pipe the output of date command, to form a command like this:
mycommand -f 20110721
where 20110721 is current YearMonthDay.
Programming :: Date Formatting From Stat Command?
Jul 23, 2010I'm writing a script that takes the date attribute of a file when it was created and appending it to the name. I'm pretty close to what I need, but the date appears in yyyy-mm-dd format and I want it to read mm-dd-yyyy. What I have done so far is something like
for ((i=1;i<=50;i++));
do fdate=`stat -c %y Video Snapshot $i.png|awk {'print$1'}`;
newname=Personname-$fdate-$i.png;
mv Video Snapshot $i.png $newname;
done
This works decently but the date comes out in the yyyy-mm-dd format. How do I change it?
General :: Bash Command History Update Before Execution Of Command
Jun 7, 2010Bash's command history is great, especially it is useful when adding the history -a command to the COMMAND_PROMPT.However, I'm wondering if there is a way to log the commands to a file as soon as the Return key is pressed, e.g. before starting the command and not on completion of the command (using the COMMAND_PROMPT option would save the command once the prompt is there again).
I read about auditing programs like snoopy and session recorder like script but I thought they're already too complex for the simple question I have. I guess that deactivating that script logs all the output of the command would lead already in the right direction but isn't there a quicker way to solve that probelm?
General :: Pass Multiline Output Of A Command Into 'date -j'
Mar 3, 2011I am doing some NSCA log parsing and I want to get an output like this:
2011-Feb-18:11:00:07
2011-Feb-18:11:00:07
2011-Feb-18:11:00:07
2011-Feb-18:11:00:08
2011-Feb-18:11:00:08
[Code]....
I have tried this, but it treats the entire output as a single line, then plops a timestamp on the end (I think):
Code:
sort -b -k4.9,4.12 -k4.5b,4.7Mb -k4.2,4.3 -k4.14,4 foo.log| date -j -f "%Y-%b-%d:%T" "+%s" "`awk -F '[ [/:]' '{print $7"-"$6"-"$5":"$8":"$9":"$10}'`"
General :: Pass Multiline Output Of A Command Into 'date?
Mar 3, 2011I am doing some NSCA log parsing and I want to get an output like this:
2011-Feb-18:11:00:07
2011-Feb-18:11:00:07
2011-Feb-18:11:00:07
[code]...
General :: Showing Date On Command Prompt Line?
Mar 1, 2011i need to add the date of the root of the command prompt line, i can get it show to the date for any user how do i just do it for root? and i added it to the .bash_profile file
export PS1='[`date +%D` u@h W]$ '
General :: History With Date And Executed File/command?
Feb 17, 2011what is the tool to get the history inclduing the user name,command time and from which file/folder the command is executed.
View 1 Replies View RelatedSoftware :: Getting Date Command To Output In Format 08-Dec-2010?
Dec 8, 2010How can format the date command to output the following format 08-Dec-2010.
View 3 Replies View RelatedGeneral :: What Does This Cryptic Bash Command Mean - Why Command Crashes
Mar 20, 2011Possible Duplicate: What does this cryptic bash command mean? Why this command crashes Linux? :(){ :|:& };:
View 4 Replies View RelatedGeneral :: Command To Delete Bash Command History?
May 31, 2010What's the command to delete bash command history?
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