Quick Question

Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers Quick Question
# 1  
Old 02-20-2001

I know in DOS, when you want to pull up your last/previous command, you hit the up/down arrows. How do you do that with UNIX?
# 2  
Old 02-20-2001
That is a function of the shell and the command line editor you are working in/with. I work in KSH so I set my EDITOR environmental variable to <B>vi</B> and have the entire range of vi search and replace on the command line. This is the same as all the vi commands in a file. For example, to move forward a line: <ESC>j ; backwards: <ESC> k. To search for a command: <ESC>/string . This is very powerful and fast (much more powerful than DOS, BTW).

Other use EMACS as the command line editor.

Also, differnet shells have builtins that do not require using a command line editor. For me, I could not imagine not using vi or emacs on the command line. The power is amazing.
# 3  
Old 02-20-2001
repeat previous UNIX command

Oh wow, something that I can answer.

at a command prompt, type ksh
this will get you to the other shell if you are currently in the bourne shell.

then type in set -o vi

To test things out, type in a command and execute.
To repeat this command, press the ESC key. Then use the
j and k keys to scroll through the old commands. After you execute the old command, you will have to press the ESC key again to get to the old commands.

You can, also, edit the old command as though you were in vi editor..
# 4  
Old 02-20-2001
Another shell, bash (often installed in /usr/local/bin/bash), allows you to scroll through the command history with the up/down arrow keys. Bash is typically installed in Linux or Solaris 8 machines but can be added to most UNIX flavors. To see if bash is on you system, execute;
which bash


ls /usr/local/bin/bash
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Quick question

When I have a file like this: 0084AF aj-123-a NAME Ajay NAME Kumar Engineer 015ED6 ck-345-c 020B25 ef-456-e 027458 pq-890-p NAME Peter NAME Salob Doctor 0318F0 xy-123-x NAME Xavier Arul NAME Yesu Supervisor 0344CA de-456-d where - The first NAME is followed by... (6 Replies)
Discussion started by: ajay41aj
6 Replies

2. UNIX for Dummies Questions & Answers

Quick question.

I'd like to list all userid's on the system that have a .bashrc file in their home directory with a command like "cat /etc/passwd | grep -f", however I'm not quite familiar with using grep. Any suggestions? (2 Replies)
Discussion started by: raidkridley
2 Replies

3. UNIX for Dummies Questions & Answers

Quick question

Hello all, Quick question from a fairly new to Unix developer. if then completedLogFile=$logfile.$(date +%Y%m%d-%H:%M:%S) mv $logfile $completedLogFile fi I understand that this portion of code is simply copying a tmp logfile to a completed logfile when a condition is true. The... (2 Replies)
Discussion started by: JohnnyBoy
2 Replies

4. UNIX for Dummies Questions & Answers

quick question

from command prompt I did grep two words on a same line for eg: grep abc | grep xyz and I got tht particular line, but I want to know when I vi that file how to directly search for that particular line? I appreciate if any one can provide answer, thanks in advance (2 Replies)
Discussion started by: pkolishetty
2 Replies

5. UNIX for Dummies Questions & Answers

Quick question

Hi, Is there a simple way, using ksh, to find the byte position in a file that a stated character appears? Many thanks Helen (2 Replies)
Discussion started by: Bab00shka
2 Replies

6. UNIX for Dummies Questions & Answers

Quick Question

Hi, I am new to UNIX, and am learning from this tutorial : http://www.ee.surrey.ac.uk/Teaching/Unix/index.html It keeps telling me to files downloaded from the internet (like .txt files) to the directory, and I dont know how to. How do I add .txt files to my directory? Thanks. (6 Replies)
Discussion started by: IAMTHEEVILBEAN
6 Replies

7. Shell Programming and Scripting

quick question

does anyone know what $? means? i echoed it on my box (running AIX Korn shell) and got 127 (2 Replies)
Discussion started by: penfold
2 Replies

8. UNIX for Dummies Questions & Answers

Another quick question

Hi guys sed -e "s/$<//g" the $< can allow me to assign an input value to the variable right? do the double quotes check the previous context? (1 Reply)
Discussion started by: hamoudzz
1 Replies

9. UNIX for Dummies Questions & Answers

Quick Question

Hello There! I am trying to write this SIMPLE script in Bourne Shell but I keep on getting syntax errors. Can you see what I am doing wrong? I've done this before but I don't see the difference. I am simply trying to take the day of the week from our system and when the teachers sign on I want... (7 Replies)
Discussion started by: catbad
7 Replies

10. Shell Programming and Scripting

A very quick question

Just a super quick question: how do you put a link in your php code. I want to make a link to something in /tmp directory. i.e. how do you put a href into php, I think it's done a bit differently. thanks john (1 Reply)
Discussion started by: jmg5
1 Replies
Login or Register to Ask a Question