I have a script which creates a certain text file.
Whenever I call it, I need to recreate this file, because I have no need in the previous content.
So I thought to remove the file every time I call the script, and that way I am sure that the previous content will not interrupt me.
I wrote this:
but then I get this error:
Quote:
rm: cannot remove `file1': No such file or directory
Is there anything else I could do, perhaps there's a command which only clears the file? Or will it print the same error?
Perhaps some of you will think that it prints this error in the times that I call the script in the first time, but sometimes it works and sometimes it doesn't.
I have a script which creates a certain text file.
Whenever I call it, I need to recreate this file, because I have no need in the previous content.
So I thought to remove the file every time I call the script, and that way I am sure that the previous content will not interrupt me.
I wrote this:
but then I get this error:
Is there anything else I could do, perhaps there's a command which only clears the file? Or will it print the same error?
Perhaps some of you will think that it prints this error in the times that I call the script in the first time, but sometimes it works and sometimes it doesn't.
Thank,
Shira.
You can:
Check first for the files:
for file in file1 file2 ; do
if [ -f $file ]; then
/bin/rm $file
fi
done
Delete 'em and don't care for error messages:
/bin/rm file1 file2 2>/dev/null
Or just initialize them, which is kind of clean and neat:
can anyone tell me the working of this logic.
here "last" is a variable or it has it own meaning . getting confused.
awk '{if (last && $2 != last) {print last, sum; sum=0}
sum=sum+ $3; last = $2}
END {print last, sum}' (4 Replies)
Hi,
I have a file with 15 fields seperated by '|'. The requirement is to clear the last 5 characters of the 14th field. modifications should be done to the original file .
Can some one help me in sorting this out. (2 Replies)
proc get_view_rel_str { } {
set cc_view :] end]]
puts $cc_view
set a
puts $a
set a end]]
puts $a
set a
puts $a
set a
puts $a
set a
puts $a
}
get_view_rel_str
this is a script in tcl with clearcase view (1 Reply)
Hi,
I have a script which will use an input.txt file as an input file.
I am providing data to this input file in the script and once the script is executed, I want to clear all the contents of this file as during the second time use of this script, I'll be appending the data in this input... (5 Replies)
Hi All,
Can anyone tell me how to clear list of queues in a file?
My file FILE1 has 3 queues
FILE1
FirstQueue
SecondQueue
ThirdQueue
I want to clear all these queues which belong to the same Qmanager from another script...
Can anyone help me for this..
Thanks in... (0 Replies)
I have a log file on our system which fills up with lines that have been timestamped, as follows....
03/03/2008 10:56:06:815] (ERROR) balance: continuing session to genapp02 : 18500
03/03/2008 10:56:06:820] (ERROR) balance: continuing session to genapp02 : 18500
03/03/2008 10:56:07:003]... (2 Replies)
Hai,
I have a program which updates the result in a log file, as the program runs 24*7,the size of log file keeps on increasing.
Can you help me with a shell command which will clear the content of a log file in use.
1) I tried tail -10 logfile > logfile ( the content is not changed )
2) >... (10 Replies)
Hello,
I want to clear or modify a line of a file. It is possible by
cat filename | sed '3d'
for example. But If I want "3" to be a variable?
I can't do sed '$var d'
Help me please
Thank you very much (1 Reply)