Deciphering the Code Post: 302318944

8 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Help deciphering script

There are files on a remote server with the file name ending in "mm-dd-yy.txt". The script I am running is: mls "Daily_Service_Text_File_*" /my/local/dir/Filelisting.txt nawk -F_ -f file.awk /my/local/dir/Filelisting.txt | sort -k1n | cut -f2- | tail -1 It worked up too "12-31-07.txt" but...

2. Shell Programming and Scripting

Help deciphering FTP get perl script

I found this very useful perl script that will check a remote ftp server, search for files of a specific time and get them. When I run the script it works, but it gave me the following error: Couldn't get filename_12-13-07.txt Bad file number What in this script would cause this? I know...

3. Shell Programming and Scripting

Deciphering strings or variable values

Hi, I have a script at the moment of which reads in simply what the latest version is within a folder i.e. v001, v002, v003 etc and then stores this latest version in a variable i.e. $LATEST would echo v003. I have then cut this string so that I only consider the 003 part. I would then like to...

4. UNIX for Dummies Questions & Answers

Need help deciphering this

I'm reading about command substitutions and came across this little function in my book: function lsd { date=$1 ls -l |grep -i "^.\{42\}$date"|cut -c55- } it's a little example which is supposed to select files by modification date, given as an argument to the function. I...

5. Programming

Some help with Perl please (deciphering)

I am trying to simplify the coding in a script I was given, but it was written 7-10 years ago and is pretty complicated. below is a tidbit, if someone can break it down for me I would appreciate it. sub ParseText { my ($line, $key, $value, $sub, $script); foreach $line (@_)...

6. Shell Programming and Scripting

need help deciphering this if statement

I'm going through my bash book and came across this if statment. if *$)" ]; then the book says that the grep expression means "an initial dash followed by a digit" (which I understand) "optionally followed by one or more digits" That's the part I can't figure out -- I know the * is a...

7. Programming

Deciphering a tag character string

I have a string, eg 7f30.3 and I want to store things in the following way npos = 7 decform = true width = 30 ndp = 3 I need to read each character one by one. I am coding in fortran but I can try to code it should answer be given in C in the above way.

8. UNIX for Beginners Questions & Answers

Deciphering AWK code

Dear experts, I am a relative novice in the Unix and came across a very useful code that I regularly use for my research blindly. I am wondering if any of the professional members could kindly briefly explain to me what the code actually does? Many thanks in advance The script is awk...

LEARN ABOUT OSF1

learn

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)