9 More Discussions You Might Find Interesting
1. Homework & Coursework Questions
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Here is what I am supposed to do, word for word from my assignment page:
1. Create/modify and print a... (2 Replies)
Discussion started by: Jagst3r21
2 Replies
2. Solaris
Hi All,
Exactly same OS (2.5.1) same pacthes but an application works well on 4m machine (Sparc20) but not on 4u machine (Ultra 1). Processor families are different Ultra's more recent one, I know that. Maybe some cpu specific compiler directives were used while compiling the application. Any... (0 Replies)
Discussion started by: endoavour
0 Replies
3. Shell Programming and Scripting
How do I create shortcuts? For example:
I just want to type one key "l" and have it output the command of "ls -lah"
I believe it's creating a file called l with 755 permissions but I'm not sure where to put the file.
*if it matters, I'm on a shared hosting web server using cPanel with... (2 Replies)
Discussion started by: ijustsawmars
2 Replies
4. Shell Programming and Scripting
Hi,
Can someone help me with creating a bash shell script.
I need to create a script that gets a positive number n as an argument.
The script must create n directories in the current directory with names like map_1, map_2 etcetera. Each directory must be contained within its predecessor. So... (7 Replies)
Discussion started by: I-1
7 Replies
5. Shell Programming and Scripting
I have a script that searches for specific information from log files.
#!/bin/sh
sed -n '/*C/,/END/p' /sn/log/OMlog* > crit.out
sed -n '/REPT INITIALIZATION/,/err:/p' /sn/log/OMlog* > switchcc.out
./start.awk /sn/log/OMlog* > ARs.out
./end.awk /sn/log/OMlog* > ARe.out
cat crit.out... (1 Reply)
Discussion started by: grinds
1 Replies
6. UNIX for Advanced & Expert Users
I have a ksh script that executes a program with a predetermined timeout in minutes. If the program takes longer then the timeout then it still completes with a return code of 0. :confused:
I would like to determine how long the program ran. Then if it takes longer than the timeout I would... (7 Replies)
Discussion started by: 2dumb
7 Replies
7. UNIX for Dummies Questions & Answers
Hi,
I have a problem with the following. I am trying to learn UNIX and as I am not an expert I don't know how to do the following exercise:
Requirement: Show knowledge of how to use some or all of the following commands:
· rm
· cp
· mv
· if
· test
· alias
· getopts and shift (See by... (1 Reply)
Discussion started by: pksb
1 Replies
8. UNIX for Advanced & Expert Users
Hello experts,
I have a series issue in script that result with bad peformence and I wonder if you can assist me.
For example
I have two files:
File-New, size 15Mb.
File-Old, size 1Mb.
File-New content:
a
b
c
k
File-Old content:
d
f
a
b (0 Replies)
Discussion started by: roybe
0 Replies
9. UNIX for Dummies Questions & Answers
I have a command that is found in /usr/ud51/bin called stopudt which safely stops idle database users (let's writes finish, etc).
If I login as root and issue stopudt the process is stopped.
I put a script in cron to run it and it says stopudt not found.
/usr/ud51/bin is in root's PATH. ... (10 Replies)
Discussion started by: michieka
10 Replies
LEARN(1) General Commands Manual LEARN(1)
NAME
learn - computer aided instruction about UNIX
SYNOPSIS
learn [ -directory ] [ subject [ lesson ] ]
DESCRIPTION
Learn gives Computer Aided Instruction courses and practice in the use of UNIX, the C Shell, and the Berkeley text editors. To get started
simply type learn. If you had used learn before and left your last session without completing a subject, the program will use information
in $HOME/.learnrc to start you up in the same place you left off. Your first time through, learn will ask questions to find out what you
want to do. Some questions may be bypassed by naming a subject, and more yet by naming a lesson. You may enter the lesson as a number
that learn gave you in a previous session. If you do not know the lesson number, you may enter the lesson as a word, and learn will look
for the first lesson containing it. If the lesson is `-', learn prompts for each lesson; this is useful for debugging.
The subject's presently handled are
files
editor
vi
morefiles
macros
eqn
C
There are a few special commands. The command `bye' terminates a learn session and `where' tells you of your progress, with `where m'
telling you more. The command `again' re-displays the text of the lesson and `again lesson' lets you review lesson. There is no way for
learn to tell you the answers it expects in English, however, the command `hint' prints the last part of the lesson script used to evaluate
a response, while `hint m' prints the whole lesson script. This is useful for debugging lessons and might possibly give you an idea about
what it expects.
The -directory option allows one to exercise a script in a nonstandard place.
FILES
/usr/share/learn subtree for all dependent directories and files
/usr/tmp/pl* playpen directories
$HOME/.learnrc startup information
SEE ALSO
csh(1), ex(1)
B. W. Kernighan and M. E. Lesk, LEARN - Computer-Aided Instruction on UNIX
BUGS
The main strength of learn, that it asks the student to use the real UNIX, also makes possible baffling mistakes. It is helpful, espe-
cially for nonprogrammers, to have a UNIX initiate near at hand during the first sessions.
Occasionally lessons are incorrect, sometimes because the local version of a command operates in a non-standard way. Occasionally a lesson
script does not recognize all the different correct responses, in which case the `hint' command may be useful. Such lessons may be skipped
with the `skip' command, but it takes some sophistication to recognize the situation.
To find a lesson given as a word, learn does a simple fgrep(1) through the lessons. It is unclear whether this sort of subject indexing is
better than none.
Spawning a new shell is required for each of many user and internal functions.
The `vi' lessons are provided separately from the others. To use them see your system administrator.
7th Edition October 22, 1996 LEARN(1)