Hi,
I want to delete the initial few lines (or even bytes) from a file.
I want to do this from a C function & this is in Linux platform.
The truncate & ftruncate is allowing me to delete bytes from the end only.
Any linux C function calls or ideas or any suggestions??
I'm in a dead... (2 Replies)
I did a search but couldn't find a thread that seemed to answer this but my apologies if it has been answered before.
I have some text files and I need to remove any line that does not start with a number (0-9). In actuality every line like this starts with a 'T' (or 't') but there are a... (5 Replies)
Hi
I need a perl onliner to delete a line in a file starting with few words.
Example
file.txt
----------
my name is don
I live in London
I am woking as engineer
I want to delete a line starting with 'I live in' using perl oneliner and in place edit with out temporary files
Thanks... (2 Replies)
I know how to check if any file has a unix process using a file by looking at 'lsof <fullpath/filename>' command.
I think using lsof is very expensive. Also to make it accurate we need to inlcude fullpath of the file.
Is there another command that can tell if a file has a truely active... (12 Replies)
Hello ,
I have comma delimited file with over 20 fileds that i need to do some validations on. I have to check if certain fields are null and then write the line containing the null field into a new file and then delete the line from the current file.
Can someone tell me how i could go... (2 Replies)
Hi,
I have multiple files of same format and I want to delete the lines starting with # and The from all of them
I am using
egrep -v '^(#|$)'
for # but unable to do for both # and The
Please guide
Thanks (12 Replies)
e.g.
File name: File.txt
cat File.txt
Result:
#INBOUND_QUEUE=FAQ1
INBOUND_QUEUE=FAQ2
I want to get the value for one which is not commented out.
Thanks, (3 Replies)
I have a log file which have a date and time at the start of every line.
I need to search the log file starting from a specific time to the end of file.
For example:
Starting point: July 29 2018 21:00:00
End point : end of file
My concern is what if the pattern of `July 29 2018 21:00:00`... (3 Replies)
Discussion started by: erin00
3 Replies
LEARN ABOUT OSF1
rmf
rmf(1) General Commands Manual rmf(1)NAME
rmf - remove folder (only available within the message handling system, mh)
SYNOPSIS
rmf [+folder] [-help] [-[no]interactive]
OPTIONS
Prints a list of the valid options to this command. Asks for confirmation before deleting a folder. By default, rmf deletes a folder and
its messages without asking for confirmation. If you specify the -interactive option, rmf asks if you are sure before deleting the folder.
You are advised to use this option, since when rmf deletes a folder its contents are lost irretrievably.
DESCRIPTION
The rmf command removes all of the messages within the current folder, and then removes the folder itself. If there are any files within
the folder which are not part of MH, they are not removed, and an error message is displayed.
You can specify a folder other than the current folder by using the +folder argument. If you do not specify a folder, and rmf cannot find
the current folder,rmf asks you whether you want to delete +inbox instead.
If the current folder is removed, it makes +inbox current.
Note that the rmf command irreversibly deletes messages that do not have other links, so use it with caution.
If the folder being removed is a sub-folder, the parent folder becomes the new current folder, and rmf tells you that this has happened.
This provides an easy mechanism for selecting a set of messages, operating on the list, then removing the list and returning to the current
folder from which the list was extracted.
Using rmf to delete a read-only folder deletes the private sequence and current message information from the file, without affecting the
folder itself. If you have sub-folders within a folder, you must delete all the sub-folders before you can delete the folder itself.
PROFILE COMPONENTS
Path: To determine the user's Mail directory
EXAMPLES
This example shows how rmf asks for confirmation when the -interactive option is used: % rmf -interactive +test Remove folder "test"? y
FILES
The user profile.
SEE ALSO rmm(1)rmf(1)