Programming Forums > Script Programming > Bash / Shell Scripting

raghavendra · Apr 9th, 2005, 5:04 AM

Hi
I am trying to write a bash script crefil whose purpose is to create a file in mt home directory.........I wanted this feature to be into it.
Whenever I run the program it should create a file with a different name........say depending on the date...........if it is 9th of april 2005 then the file name should be
file090405.txt.........Is it possible to achieve?
Thanks for the help.

Dizzutch · Apr 9th, 2005, 8:20 AM

sure, just use exec('touch `date`.txt') and use a format for date to get the right format you desire. check the man page of date

raghavendra · Apr 9th, 2005, 11:30 PM

Quote:

Originally Posted by Dizzutch

sure, just use exec('touch `date`.txt') and use a format for date to get the right format you desire. check the man page of date

Hi
Thanks for the reply.........But i am getting syntax error when using it........Please can you give more details how to use it?

tempest · Apr 9th, 2005, 8:26 AM

echo $(date +%m%y%d)

I decided to do some research to learn a little on bash scripting...

raghavendra · Apr 9th, 2005, 11:34 PM

Quote:

Originally Posted by tempest

echo $(date +%m%y%d)

I decided to do some research to learn a little on bash scripting...

Hi
Thanks for the reply...........But when I use this the script is creating a file by name echo

How will I make it understand that is a command?

Dizzutch · Apr 9th, 2005, 9:57 AM

right, i just forgot the format off the top of my head

Dizzutch · Apr 10th, 2005, 1:04 AM

(Toggle Plain Text)

#!/bin/sh
touch `date +%m%y%d`;

raghavendra · Apr 10th, 2005, 1:10 AM

Hi
If I try that command in ther terminal it works.
But if I use the same thing in a bash script it does not

(Toggle Plain Text)

#!/bin/bash
/bin/tar -zcpf /home/raghu/cron/touch `date +%m%y%d`.tar.gz /home/raghu/.gaim/logs/yahoo/raghavendra83

It creates a file with name touch and not a file with the filename of date

What should I do to solve this?

Infinite Recursion · Apr 10th, 2005, 5:32 PM

throw the command in a variable and execute it from the script... here is a basic example...

(Toggle Plain Text)

#!/bin/sh

MYFILE=`date +%m%y%d`;
echo $MYFILE;

DATA="this is a test";
echo "$DATA" >> $MYFILE;

MYCMD="cat $MYFILE";

$MYCMD

raghavendra · Apr 11th, 2005, 6:40 AM

Hi
Thanks for your reply. Your suggestion worked like a charm.
I did make some changes to suite my needs but it was built upon your idea

Apr 9th, 2005, 5:04 AM	#1
raghavendra Newbie Join Date: Apr 2005 Location: Bangalore Posts: 14 Rep Power: 0	Using Date in Bash Scripting Hi I am trying to write a bash script crefil whose purpose is to create a file in mt home directory.........I wanted this feature to be into it. Whenever I run the program it should create a file with a different name........say depending on the date...........if it is 9th of april 2005 then the file name should be file090405.txt.........Is it possible to achieve? Thanks for the help.

Apr 9th, 2005, 8:20 AM	#2
Dizzutch Professional Programmer Join Date: Dec 2004 Location: Worcester, MA Posts: 441 Rep Power: 4	sure, just use exec('touch `date`.txt') and use a format for date to get the right format you desire. check the man page of date __________________ naked pictures of you \| PFO F@H stats

Apr 9th, 2005, 8:26 AM	#4
tempest Programming Guru Join Date: Oct 2004 Posts: 1,041 Rep Power: 5	echo $(date +%m%y%d) I decided to do some research to learn a little on bash scripting... __________________

Apr 9th, 2005, 9:57 AM	#6
Dizzutch Professional Programmer Join Date: Dec 2004 Location: Worcester, MA Posts: 441 Rep Power: 4	right, i just forgot the format off the top of my head __________________ naked pictures of you \| PFO F@H stats

Apr 10th, 2005, 1:04 AM	#7
Dizzutch Professional Programmer Join Date: Dec 2004 Location: Worcester, MA Posts: 441 Rep Power: 4	(Toggle Plain Text) #!/bin/sh touch `date +%m%y%d`; #!/bin/sh touch `date +%m%y%d`; __________________ naked pictures of you \| PFO F@H stats

Apr 10th, 2005, 1:10 AM	#8
raghavendra Newbie Join Date: Apr 2005 Location: Bangalore Posts: 14 Rep Power: 0	Hi If I try that command in ther terminal it works. But if I use the same thing in a bash script it does not (Toggle Plain Text) #!/bin/bash /bin/tar -zcpf /home/raghu/cron/touch `date +%m%y%d`.tar.gz /home/raghu/.gaim/logs/yahoo/raghavendra83 #!/bin/bash /bin/tar -zcpf /home/raghu/cron/touch `date +%m%y%d`.tar.gz /home/raghu/.gaim/logs/yahoo/raghavendra83 It creates a file with name touch and not a file with the filename of date What should I do to solve this?

Apr 10th, 2005, 5:32 PM	#9
Infinite Recursion Programming Guru Join Date: Jul 2004 Location: United States Posts: 3,467 Rep Power: 8	throw the command in a variable and execute it from the script... here is a basic example... (Toggle Plain Text) #!/bin/sh MYFILE=`date +%m%y%d`; echo $MYFILE; DATA="this is a test"; echo "$DATA" >> $MYFILE; MYCMD="cat $MYFILE"; $MYCMD #!/bin/sh MYFILE=`date +%m%y%d`; echo $MYFILE; DATA="this is a test"; echo "$DATA" >> $MYFILE; MYCMD="cat $MYFILE"; $MYCMD __________________ http://jasonpowers.net "There are a thousand hacking at the branches of evil to one who is striking at the root."

Apr 11th, 2005, 6:40 AM	#10
raghavendra Newbie Join Date: Apr 2005 Location: Bangalore Posts: 14 Rep Power: 0	Hi Thanks for your reply. Your suggestion worked like a charm. I did make some changes to suite my needs but it was built upon your idea

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Programming Forums > Script Programming > Bash / Shell Scripting

Using Date in Bash Scripting