"vi"-ing a constantly updated file Post: 302115539

Sponsored Content

Top Forums UNIX for Dummies Questions & Answers "vi"-ing a constantly updated file Post 302115539 by sysgate on Wednesday 25th of April 2007 10:37:15 AM

04-25-2007

Registered User

The updates made by background process are not lost, the question is what happens when you are about to do "save & quit" - you will be prompted with message that the original file has changed : do you want to save anyway ?
The other thing is when someone else is trying to vi the same file opened by you - he will get a message :

Quote:

E325: ATTENTION
Found a swap file by the name ".temp.txt.swp"
owned by: sysgate dated: Wed Apr 25 17:29:23 2007
file name: ~sysgate/temp.txt
modified: no
user name: sysgate host name: $myhost
process ID: 30240 (still running)
While opening file "temp.txt"
dated: Wed Apr 25 17:27:07 2007

(1) Another program may be editing the same file.
If this is the case, be careful not to end up with two
different instances of the same file when making changes.
Quit, or continue with caution.

(2) An edit session for this file crashed.
If this is the case, use ":recover" or "vim -r temp.txt"
to recover the changes (see ":help recovery").
If you did this already, delete the swap file ".temp.txt.swp"
to avoid this message.

Swap file ".temp.txt.swp" already exists!
[O]pen Read-Only, (E)dit anyway, (R)ecover, (Q)uit, (A)bort:

but, I suppose you mean large log files, so the solution will vary depending on what exactly you want to do.

sysgate

View Public Profile for sysgate

Find all posts by sysgate

7 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Explain the line "mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`"

Hi Friends, Can any of you explain me about the below line of code? mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'` Im not able to understand, what exactly it is doing :confused: Any help would be useful for me. Lokesha

2. Shell Programming and Scripting

Ignore "a line" within /etc/profile only when su'ing

Is there a way to ignore a command within /etc/profile only when su'ing as any particular user. For instance.... As root, if I run "su - oracle -c program" it is running a string in my profile called "echo "^2;$(hostname)-(ABC) @ $(who am i)^G". I don't want the above string to run if I...

3. Shell Programming and Scripting

awk command to replace ";" with "|" and ""|" at diferent places in line of file

Hi, I have line in input file as below: 3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL My expected output for line in the file must be : "1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL" Can someone...

4. Shell Programming and Scripting

finding the strings beween 2 characters "/" & "/" in .txt file

Hi all. I have a .txt file that I need to sort it My file is like: 1- 88 chain0 MASTER (FF-TE) FFFF 1962510 /TCK T FD2TQHVTT1 /jtagc/jtag_instreg/updateinstr_reg_1 dff1 (TI,SO) 2- ...

5. UNIX for Dummies Questions & Answers

Using "mailx" command to read "to" and "cc" email addreses from input file

How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing �To� e-mail address and column 3 contains �cc� e-mail address to include with same email. Sample input file, email.txt Below is an sample code where...

6. Shell Programming and Scripting

Permission error when "touch"ing file with different user

Hi, There are 2 users (T886072 & T864764) that need to be provided full (rwx) access to a directory. I made the changes to the directory permissions using chmod and setfacl : root@digidb2:# chmod 700 /u02/ftpfiles/MFRS16/discount_rates/ root@digidb2:# setfacl -s...

7. Shell Programming and Scripting

Bash script - Print an ascii file using specific font "Latin Modern Mono 12" "regular" "9"

Hello. System : opensuse leap 42.3 I have a bash script that build a text file. I would like the last command doing : print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt where : print_cmd ::= some printing...

LEARN ABOUT REDHAT

unix2dos

unix2dos(1)						      General Commands Manual						       unix2dos(1)

NAME

       unix2dos - UNIX to DOS text file format converter

SYNOPSYS

       unix2dos [options] [-c convmode] [-o file ...] [-n infile outfile ...]

       Options:

       [-hkqV] [--help] [--keepdate] [--quiet] [--version]

DESCRIPTION

       This manual page documents unix2dos, the program that converts text files in UNIX format to DOS format.

OPTIONS

       The following options are available:

       -h --help
	      Print online help.

       -k --keepdate
	      Keep the date stamp of output file same as input file.

       -q --quiet
	      Quiet mode. Suppress all warning and messages.

       -V --version
	      Prints version information.

       -c --convmode convmode
	      Sets conversion mode. Simulates unix2dos under SunOS.

       -o --oldfile file ...
	      Old file mode. Convert the file and write output to it. The program default to run in this mode. Wildcard names may be used.

       -n --newfile infile outfile ...
	      New  file  mode.	Convert the infile and write output to outfile. File names must be given in pairs and wildcard names should NOT be
	      used or you WILL lost your files.

EXAMPLES

       Get input from stdin and write output to stdout.

	      unix2dos

       Convert and replace a.txt. Convert and replace b.txt.

	      unix2dos a.txt b.txt

	      unix2dos -o a.txt b.txt

       Convert and replace a.txt in ASCII conversion mode.  Convert and replace b.txt in ISO conversion mode.

	      unix2dos a.txt -c iso b.txt

	      unix2dos -c ascii a.txt -c iso b.txt

       Convert and replace a.txt while keeping original date stamp.

	      unix2dos -k a.txt

	      unix2dos -k -o a.txt

       Convert a.txt and write to e.txt.

	      unix2dos -n a.txt e.txt

       Convert a.txt and write to e.txt, keep date stamp of e.txt same as a.txt.

	      unix2dos -k -n a.txt e.txt

       Convert and replace a.txt. Convert b.txt and write to e.txt.

	      unix2dos a.txt -n b.txt e.txt

	      unix2dos -o a.txt -n b.txt e.txt

       Convert c.txt and write to e.txt. Convert and replace a.txt.  Convert and replace b.txt. Convert d.txt and write to f.txt.

	      unix2dos -n c.txt e.txt -o a.txt b.txt -n d.txt f.txt

DIAGNOSTICS

BUGS

       The program does not work properly under MSDOS in stdio processing mode.  If you know why is that so, please tell me.

AUTHOR

       Benjamin Lin - ( blin@socs.uts.edu.au )

MISCELLANY

       Tested environment:

	      Linux 1.2.0 with GNU C 2.5.8

	      SunOS 4.1.3 with GNU C 2.6.3

	      MS-DOS 6.20 with Borland C++ 4.02

       Suggestions and bug reports are welcome.

SEE ALSO

       dos2unix(1)

1995.03.31							   unix2dos v2.2						       unix2dos(1)