Sponsored Content
Full Discussion: Code Understand ?
Top Forums UNIX for Advanced & Expert Users Code Understand ? Post 302191458 by varungupta on Friday 2nd of May 2008 04:21:05 PM
Old 05-02-2008
Code Understand ?

Hey,

Could you explain me what this code is doing ?
For example:
Code:
$i has value 9
$1 is the name of the file say FILEBkUp

    while [ "$i" != "1" ]
    do
      if [ -f $1.`/bin/expr $i - 1` ]
      then
        mv -f $1.`/bin/expr $i - 1` $1.$i
      fi
      i=`/bin/expr $i - 1`
    done

Thanks in Advance !
VarunSmilie
 

8 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

perl - understand process status and continue the code execution

Hello, I need advice on how to check if started processes are finished in perl, here's explanation : OS is RHEL 4, perl -v = "This is perl, v5.8.0 built for i386-linux-thread-multi" The logic of the script : #!/usr/bin/perl use warnings; $param1 = $ARGV; $param2 = $ARGV; $param3 =... (2 Replies)
Discussion started by: sysgate
2 Replies

2. UNIX for Dummies Questions & Answers

unable to understand a awk code

i am not able to understand the following code for awk: $awk -F"|" '{ kount++} >END { for (desig in kount) > print desig,kount }' emp.list the input file i.e. emp.list is :: 3432| p.k.agrwal |g.m |sales 4566|g.l.sharma |director|production 3433|r shah | g.m | production... (1 Reply)
Discussion started by: streetfi8er
1 Replies

3. Shell Programming and Scripting

Need help to understand Awk code.

Hi Guys, Can someone please explain this code to me. I could figure out it's adding and comparing two fields but I am not sure which ones. sort -t"|" -k3.1 /tmp/mpcashqc.xtr| awk -F"|" '{CHECKAMT+=$3;BATCHTOT=$4;\ items++}END{for(i in CHECKAMT) if (CHECKAMT!=BATCHTOT)... (6 Replies)
Discussion started by: nua7
6 Replies

4. Programming

Need help with this c++ source code! DOnt understand what some stuff mean.

Okay so I am just starting programming c++. I just started started to red "C++ for Dummies yesterday and theres a lot of things I do not understand from this book and this source code especially. I will first post the full source code and then post questions about certain thing, usually what they... (2 Replies)
Discussion started by: orszhak
2 Replies

5. Shell Programming and Scripting

help can't understand the code

Hi All, Good day, i'm just wondering what is the meaning of this code? COUNT_EXTRACTED_FILE=`${ECHO_CMD} "${SE_IN_PATH}${SE_IN_FILE}" | ${AWK_CMD} -F"__" '{print $2}'` Thanks, -niks(newbie) (2 Replies)
Discussion started by: nikki1200
2 Replies

6. Shell Programming and Scripting

can't understand!

Hi All, can you please help me to figured out what's the meaning of this. ${SERVER_DATABASE} -b << EOF 2>>/dev/null THanks, (3 Replies)
Discussion started by: nikki1200
3 Replies

7. UNIX for Dummies Questions & Answers

Trying to understand a complex bit of code

Hi, To re-introduce myself, I'm a router guy trying to learn some scripting from the examples in my work place... In a ksh script, one of the script guys wrote the following and I am trying to understand it. I'm hoping someone can explain it to me. The script flow enters a case structure.... (5 Replies)
Discussion started by: Marc G
5 Replies

8. UNIX for Dummies Questions & Answers

help me to understand this code

Hi guys can you please help me to understand this code . tmpArray=(${line//=/ }) Please next time open a new thread in the appropriate forum and use code tags (6 Replies)
Discussion started by: sandhya.gilla
6 Replies
MARC::Charset::Code(3pm)				User Contributed Perl Documentation				  MARC::Charset::Code(3pm)

NAME
MARC::Charset::Code - represents a MARC-8/UTF-8 mapping SYNOPSIS
DESCRIPTION
Each mapping from a MARC-8 value to a UTF-8 value is represented by a MARC::Charset::Code object in a MARC::Charset::Table. METHODS
new() The constructor. name() A descriptive name for the code point. marc() A string representing the MARC-8 bytes codes. ucs() A string representing the UCS code point in hex. charset_code() The MARC-8 character set code. is_combining() Returns true/false to tell if the character is a combining character. to_string() A stringified version of the object suitable for pretty printing. char_value() Returns the unicode character. Essentially just a helper around ucs(). marc_value() The string representing the MARC-8 encoding. charset_name() Returns the name of the character set, instead of the code. to_string() Returns a stringified version of the object. marc8_hash_code() Returns a hash code for this Code object for looking up the object using MARC8. First portion is the character set code and the second is the MARC-8 value. utf8_hash_code() Returns a hash code for uniquely identifying a Code by it's UCS value. default_charset_group Returns 'G0' or 'G1' indicating where the character is typicalling used in the MARC-8 environment. get_marc8_escape Returns an escape sequence to move to the Code from another marc-8 character set. charset_value Returns the charset value, not the hex sequence. perl v5.12.4 2010-03-29 MARC::Charset::Code(3pm)
All times are GMT -4. The time now is 04:41 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy