Sponsored Content
Top Forums UNIX for Beginners Questions & Answers How to check if a file is open in editor? Post 303005499 by Don Cragun on Wednesday 18th of October 2017 02:47:55 PM
Old 10-18-2017
A process ID does not change during the life of a process. But with a clear command in your code, any diagnostics messages that might be printed to give you an indication of what went wrong will likely be erased before you get a chance to see them.

How is it that you expect to edit a file when your editor is running in the background and can't read editing instructions from the terminal?
This User Gave Thanks to Don Cragun For This Post:
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Unable to open files in VI editor

Hi, I unable to open any file using Vi editor,constantly getting the following error, vi log.log *** glibc detected *** malloc(): memory corruption: 0x081af510 ** uname -a Linux sekac092 2.6.5-7.244-bigsmp #1 SMP Mon Dec 12 18:32:25 UTC 2005 i686 athlon i386 GNU/Linux Also Note ls... (8 Replies)
Discussion started by: ennstate
8 Replies

2. Shell Programming and Scripting

How to give permissions to an open file in vi editor?

Hi all, I have a shell script that i started editing, only in the midst of which i tried to save the changes i found that the file wasnt been provided with write/execute permissions. I later have redone the changes and saved the file- Just curious to know if there was any command wherein... (5 Replies)
Discussion started by: Pankajakshan
5 Replies

3. UNIX for Advanced & Expert Users

getting error when open vi editor

helo I install my product for koren language I m uisng RHEL -4 operating system now problem is whenever I open any file vi filename I got following error on the screen E557: Cannot open termcap file 'vt100' not known. Available builtin terminals are: builtin_ansi ... (1 Reply)
Discussion started by: amitpansuria
1 Replies

4. UNIX for Dummies Questions & Answers

How to open file in VI Editor at a specific line?

i have following query e.g i want the VI Editor cursor at line number N instead of 0 while opening the file from unix prompt. vi filename ?????? Can anyone help? (4 Replies)
Discussion started by: skyineyes
4 Replies

5. Shell Programming and Scripting

avoid open file to check field.

Hi Everyone, # cat a.txt 94,aqqc,62345907, 5,aeec,77, # cat 1.pl #!/usr/bin/perl use strict; use warnings; use Date::Manip; open(my $FA, "/root/a.txt") or die "$!"; while(<$FA>) { chomp; my @tmp=split(/\,/, $_); if (index($tmp, "qq") ne -1) { ... (4 Replies)
Discussion started by: jimmy_y
4 Replies

6. Solaris

Before I delete any file in Unix, How can I check no open file handle is pointing to that file?

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)
Discussion started by: kchinnam
12 Replies

7. UNIX and Linux Applications

Notepad++ hang when open file edited in other text editor

Hi, I would like to ask about the notepad++ text editor application, Although there are alternative and more great text editor in linux (gedit, geany, jedit) im still using the notepad++ sometimes cause for some of my own reason one of those is the minimalist text(what i mean is notepad++ has a... (2 Replies)
Discussion started by: jao_madn
2 Replies

8. UNIX for Dummies Questions & Answers

Vi editor will not open new to UNIX. help please.

vi: syntax error at line 1: `)' unexpected when I try to vi into the /etc/vfstab, the return gives me the above error. how can resolve this so that I can have access into vi. (6 Replies)
Discussion started by: dovestar
6 Replies

9. Shell Programming and Scripting

Not able to read .csv file until open in vi editor

Hi, I am facing a problem regarding .csv file, my script does not read .csv file and if i open this file in vi editor and perform :wq option then only my script reads the .csv file. Thanks (5 Replies)
Discussion started by: ranabhavish
5 Replies

10. Shell Programming and Scripting

To check if a file is open and in use (logs are being written to it)

Hello Experts, I need to write a shell script to check if a file is open and something is being written to it. I want to know how OS handles it. I checked with lsof command but it is not working. For a test I did this. while true; do echo `date` >>abc.txt; done then I checked lsof |... (5 Replies)
Discussion started by: shekhar_4_u
5 Replies
win(1)							      General Commands Manual							    win(1)

NAME
win - Terminal emulator SYNOPSIS
win [-v] [-t name] [command [argument ...]] address OPTIONS
-v If the -v option is present, win prints its version number and date and exits. -tname If the -t option is present, win uses +name as the final part of the tag name of its window. DESCRIPTION
win must be able to connect to a running wily(1). win attaches to a window. If the -t option is present, the final part of the tag name is name. If command is present, the final part of the tag name is +command. Otherwise, the final part of the tag name is +win. The first part of the tag name is the current working directory. win runs a program in a child process. The child process is the leader of a process group and is connected to win by a pseudo-terminal. If command is specified, the child process runs $SHELL -c 'command argument ...' otherwise it runs $SHELL -i If SHELL is not found in the environment, /bin/sh is used. TERM=win is placed in the environment of the running program. Output from the running command appears in the window. The point after the last output from the running command is known as the output point. Further output from the running command appears just before the output point. The output point is initially at the end of the win- dow. Normal wily editing commands work in the window. When a newline, interrupt character, or end-of-file character is created after the output point, the text between the output point and the last newline, interrupt character, or end-of-file character in the window (inclusive) is passed to the running program as input. The interrupt character is control-C and the end-of-file character is control-D. The pseudo-terminal initially is configured so that these are recognized with their normal meanings. The B2 commands beginning with the |, <, or > characters or an upper case letter are executed normally by wily. Other B2 are first termi- nated with a newline, if they are not already, and are then appended to the buffer (and thereafter passed to the running program). RETURNS
win returns zero if it is able to successfully create the child process, otherwise it returns non-zero. EXAMPLES
Run a terminal emulator within wily win Run FTP within wily win ftp Run rlogin within wily win -t host.domain rlogin -8 host.domain SEE ALSO
wily(1) Tag(1) Man(1) BUGS
win doesn't follow changes to the terminal attributes. In particular, there is no way to stop echoing or to change its concept of the interrupt and eof characters. rlogin seems to need -8 and, annoyingly, sets echo and onlcr. The latter can be fixed in your .rcrc: if ( ~ $TERM win ) { stty -echo -onlcr } win doesn't follow changes to the terminal attributes. In particular, there is no way to stop echoing or to change its concept of the interrupt and eof characters. WEdestroy messages aren't yet passed by wily. Thus, Del and Delcol can delete the window yet leave win running. There is a race condition; the user can press newline and then delete text before win has a chance to read it. AUTHOR
win was originally written by Gary Capell (gary@cs.su.oz.au). Alan Watson (alan@oldp.nmsu.edu) rewrote it and added support for arguments, pseudo-terminals instead of pipes, and execution of certain B2 commands by wily. The pseudo-terminal support in 9term, written by Matty Farrow (matty@cs.su.oz.au), was a great help. 1R1.1L1 of 1D1 win(1)
All times are GMT -4. The time now is 02:33 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy