Let's look at a typical novice's session with the mighty ed:
golem> ed
?
help
?
?
?
quit
?
exit
?
bye
?
hello?
?
eat flaming death
?
^C
?
^C
?
^D
?
---
Note the consistent user interface and error reportage. Ed is
generous enough to flag errors, yet prudent enough not to overwhelm
the novice with verbosity.
"Ed is the standard text editor."
Useful as it is, I'm glad it's not the only thing we have anymore
These 4 Users Gave Thanks to Corona688 For This Post:
Hello everybody,
My question is: how to add /tmp/work at the end of line in vi editor.
my file looks like:
cp file1
cp file2
cp file3
****
I need to add " /tmp/work" at the end of each line.
I tried this
:%s/$/" /tmp/work"
and this
:%s/$/\ /tmp/work\/
but it does not work. (2 Replies)
Hi,
how can I add at the begining and at the end of all of the lines of my text file in VI editor ? Many thanks before.
for exemple if in my file i have
line 1
line 2
I want to have :
start line 1 end
start line 2 end (3 Replies)
We work on AIX 5L
We use vi as text editor (only scripts to create and modifiy).
What do you think of emacs ? Where can I find it ?
Do you know better text editor for scripts ?
Thank you for all answers. (1 Reply)
I am new in hp ux and I want work with vi editor, but in hp ux vi editor the backspaes and del keys doesn't work.
how can I enable them.
thanks (3 Replies)
Hi,
I knw its a silly question, but am a newbie to 'vi' editor. I'm forced to use this, hence kindly help me with this question.
How can i paste a chunk 'copied from' a different editor(gedit) in 'vi editor'?
As i see, p & P options does work only within 'vi'. (10 Replies)
Hi All,
I am running a script , working very fine on cmd prompt. The problem is that when I open do crontab -e even after setting editor to vi by
set EDITOR=vi it does not open a vi editor , rather it do as below.....
/////////////////////////////////////////////////////
$ set... (6 Replies)
Hello All,
Need one Help for one issue.
I am using a French Keyboard, so @ sign is on key 0 and i have to use right Alt + 0 to print it.
It is working everywhere but not inside Vi editor. I can type @ in shell, in notepad. But inside Vi editor it is not working, another problem is that if... (2 Replies)
Discussion started by: yadavricky
2 Replies
LEARN ABOUT POSIX
true
TRUE(1P) POSIX Programmer's Manual TRUE(1P)PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond-
ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.
NAME
true -- return true value
SYNOPSIS
true
DESCRIPTION
The true utility shall return with exit code zero.
OPTIONS
None.
OPERANDS
None.
STDIN
Not used.
INPUT FILES
None.
ENVIRONMENT VARIABLES
None.
ASYNCHRONOUS EVENTS
Default.
STDOUT
Not used.
STDERR
Not used.
OUTPUT FILES
None.
EXTENDED DESCRIPTION
None.
EXIT STATUS
Zero.
CONSEQUENCES OF ERRORS
None.
The following sections are informative.
APPLICATION USAGE
This utility is typically used in shell scripts, as shown in the EXAMPLES section. The special built-in utility : is sometimes more effi-
cient than true.
EXAMPLES
This command is executed forever:
while true
do
command
done
RATIONALE
The true utility has been retained in this volume of POSIX.1-2008, even though the shell special built-in : provides similar functionality,
because true is widely used in historical scripts and is less cryptic to novice script readers.
FUTURE DIRECTIONS
None.
SEE ALSO
Section 2.9, Shell Commands, false
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technol-
ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Stan-
dard is the referee document. The original Standard can be obtained online at http://www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source
files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE /The Open Group 2013 TRUE(1P)
09-13-2012
