10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hello I am attempting to generate a bash scrip that prompts me at loggin to change my PS1 -
However, I am running into an issue w/ the code.
#!/bin/bash
#the point of this script is to that it automates and changes my prompts every day
msg1="What do you feel like adding today :"
echo... (11 Replies)
Discussion started by: D'go
11 Replies
2. Shell Programming and Scripting
I have coded PS1 as shown, producing the following result when writing on the command line
┌─ cdl
└──╼ make tracepdf2d
If I make an error in the command an ✗ is printed
┌─ ✗ cdl
└──╼ ls-a
ls-a: command not found
My problem is that if I just press enter, I do not want to have the... (3 Replies)
Discussion started by: kristinu
3 Replies
3. Shell Programming and Scripting
I am trying to create my custom prompt and I have almost succeeded. Right now I have PS1='\n\\$\ '
What I have not figured out is how to make the directories bold when I'm using commands ls or ls -la.
Any idea how to do it???
Many thanx. (2 Replies)
Discussion started by: emailkia
2 Replies
4. UNIX for Dummies Questions & Answers
I have set PSI for my prompt using the following command:
PS1="${debian_chroot:+($debian_chroot)}\\u@\h:\\\w\a]\ "which produces
chrisd@pguk:~]I want to include [ in the beginning but cannot understand the way to do this.
Also I want to show only the current directory, not the whole... (4 Replies)
Discussion started by: kristinu
4 Replies
5. Shell Programming and Scripting
Ok then i Have a challenge for you :
Give me PS1 so that it always display the least 2 levels of directory
(except if i am above of course)
I want it this way :
so if i go to
/
/home/
/home/user
/home/user/whatever
/home/user/whatever1/whatever2
my PS1 should respectively... (12 Replies)
Discussion started by: ctsgnb
12 Replies
6. Shell Programming and Scripting
I am 100% new to Unix and trying to learn.
This is my first time even touching a script in Unix.
We have the following variable script that I am trying to run....
##################################
###### variable test###
##################################
Hostname=`hostname`... (3 Replies)
Discussion started by: LRoberts
3 Replies
7. UNIX for Dummies Questions & Answers
please advise what's wrong with this command ?
PS1="`hostname`:`who am i | cut -d " " -f1`:>>"
trying to make the PS1 prompt look like :
machine_name:username:>>
thank you (4 Replies)
Discussion started by: venhart
4 Replies
8. UNIX for Dummies Questions & Answers
I know this question has come up before but I couldn't find any documentation on ksh here.
I'm trying
PS1="`whoami`@`hostname`:`pwd`> "
export PS1
in ksh but the working directory sticks at the home directory. How do I fix that? Also, how do I make the prompt bold in korn? (3 Replies)
Discussion started by: rein
3 Replies
9. UNIX for Advanced & Expert Users
I want to set my prompt to something more descriptive than a plain old $, so I set the PS1 variable as such:
PS1=""
Which changes the prompt correctly, but when I change directories, it does not update the prompt. So I tried this:
PS1="`pwd`>"
I get the same results when changing... (2 Replies)
Discussion started by: dangral
2 Replies
10. UNIX for Dummies Questions & Answers
Hello
I am using Debain Potato and I changed the PS1. When I log in locally everythink is fine, except that when I enter a long row without hitting enter, then it word wraps automatically. And it does it not at the end of the row, it does it in the middle of the row!
It also does not writes... (7 Replies)
Discussion started by: Fwurm
7 Replies
update(n) Tcl Built-In Commands update(n)
__________________________________________________________________________________________________________________________________________________
NAME
update - Process pending events and idle callbacks
SYNOPSIS
update ?idletasks?
_________________________________________________________________
DESCRIPTION
This command is used to bring the application "up to date" by entering the event loop repeatedly until all pending events (including idle
callbacks) have been processed.
If the idletasks keyword is specified as an argument to the command, then no new events or errors are processed; only idle callbacks are
invoked. This causes operations that are normally deferred, such as display updates and window layout calculations, to be performed imme-
diately.
The update idletasks command is useful in scripts where changes have been made to the application's state and you want those changes to
appear on the display immediately, rather than waiting for the script to complete. Most display updates are performed as idle callbacks,
so update idletasks will cause them to run. However, there are some kinds of updates that only happen in response to events, such as those
triggered by window size changes; these updates will not occur in update idletasks.
The update command with no options is useful in scripts where you are performing a long-running computation but you still want the applica-
tion to respond to events such as user interactions; if you occasionally call update then user input will be processed during the next
call to update.
EXAMPLE
Run computations for about a second and then finish:
set x 1000
set done 0
after 1000 set done 1
while {!$done} {
# A very silly example!
set x [expr {log($x) ** 2.8}]
# Test to see if our time-limit has been hit. This would
# also give a chance for serving network sockets and, if
# the Tk package is loaded, updating a user interface.
update
}
SEE ALSO
after(n), interp(n)
KEYWORDS
event, flush, handler, idle, update
Tcl 7.5 update(n)