09-07-2008
if you want to choose 1 between the 2 , then learn awk.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have a question. Take the following statement
awk -F\| '{print $21}' testfile | sed 's/\//\\/g' > newfile
This will grab the 21st column of a | delimited text file, replace the forward slashes "/" , with back slashes "\", and redirect the output newfile. Now, how do I get the output... (4 Replies)
Discussion started by: shimb0
4 Replies
2. Shell Programming and Scripting
Hello,
I am new to shell scripting. I want to optimize my one of the script.
I have one file and i want to remove selected zones for domains from that file.In this file i have almost 3500 zones for domains.Sample data for the file....
named.backup... (0 Replies)
Discussion started by: nrbhole
0 Replies
3. Shell Programming and Scripting
How do I grab the first 10 characters of a line and append it to another empty file? (7 Replies)
Discussion started by: xgringo
7 Replies
4. UNIX for Dummies Questions & Answers
Hello,
Despite reading the Pattern Matching chapter in the O'Reilly Sed & Awk book several times and
looking at numerous examples, I cannot seem to get any kind of conditional script to work in my awk scripts!
I am able to do the basic awk and grep script to capture the data but when I do with... (0 Replies)
Discussion started by: pg55
0 Replies
5. Shell Programming and Scripting
Hi all,
can anyone have sed & awk programming doc..so that to learn it easier.. (1 Reply)
Discussion started by: gk2009
1 Replies
6. Shell Programming and Scripting
I have large number of data files, close to 300 files, lets say all files are same kind and have extension .dat , each file have mulitple lines in it.
There is a unique line in each file containing string 'SERVER'. Right after this line there is another line which contain a string 'DIGIT=0',... (4 Replies)
Discussion started by: sal_tx
4 Replies
7. UNIX for Dummies Questions & Answers
Hi,
Can anyone let me know the difference between awk and sed utilities in Unix?
Many thanks. (2 Replies)
Discussion started by: venkatesht
2 Replies
8. Shell Programming and Scripting
Hello,
I have a file. its content are like below.
mdn:87439842
imsi:23082038203
Ctime:12082010 01:20:10
mdn:9324783783
imsi:402349823322
Ctime: 12072010 01:20:10
mdn:87439842
imsi:23082038203
Ctime: 23072010 01:20:10
mdn:87439842
imsi:23082038203
Ctime:18072010 01:20:10
mdn:87439842... (3 Replies)
Discussion started by: Sanket11
3 Replies
9. Shell Programming and Scripting
Hi Experts,
I am studying SED and AWK text processing commands with an E-book. I am not satisfied with the way of explanation and examples given by them.
I would like you guys to suggest me the Best book for SED and AWK to become good in this utility.
Thanks in Advance (1 Reply)
Discussion started by: linuxrulez
1 Replies
10. Shell Programming and Scripting
string="din&esh\nisgood"
File.txt:
the name is
sed "s#\#${string}#g" File.txt
Output am getting:
the name is dinesh
is good
Expected output:
the name is din&esh\nisgood
The input string is dynamic it will be keep on changing
am able to handle & by placing \& in the string.. (5 Replies)
Discussion started by: dineshaila
5 Replies
learn(1) General Commands Manual learn(1)
NAME
learn - Provides computer-aided instruction for the C shell
SYNOPSIS
learn [-directory] [subject] [lesson]
The learn command provides computer-aided instruction courses and practice in the use of Tru64 UNIX.
OPTIONS
Allows you to exercise a script in a nonstandard place.
DESCRIPTION
To get started, enter learn; if this is the first time that you are invoking the learn command, you are guided through a series of ques-
tions to determine what type of instruction you want to receive.
If you have used learn before and left your last session without completing a subject, the program uses information in $HOME/.learnrc to
start you up in the same place you left off.
To bypass questions, enter a subject or lesson. In order to enter a lesson, you must know the lesson number that you received in a previ-
ous learn command session. If you do not know the lesson number, enter the lesson number as a subject. The learn command searches for the
first lesson containing the subject you specified. If the lesson is a - (dash), learn prompts for each lesson; this is useful for debug-
ging.
You can specify the following subjects:
files editor vi morefiles macros eqn C
SUBCOMMANDS
There are a few special commands. The bye command terminates a learn session, and the where command tells you of your progress (where m
tells you more.) The again command redisplays the text of the lesson and again lesson lets you review lesson. The hint command prints the
last part of the lesson script used to evaluate a response, while hint m prints the entire lesson script. This is useful for debugging
lessons and might possibly give you an idea about what is expected.
EXAMPLES
To take the online lesson about files, enter: learn files
You are then prompted for further input.
FILES
Playpen directories. Start-up information.
SEE ALSO
Commands: csh(1), ex(1)
learn(1)