Sponsored Content
Full Discussion: Unable to swap values
Top Forums Shell Programming and Scripting Unable to swap values Post 302907795 by Chubler_XL on Tuesday 1st of July 2014 10:20:44 PM
Old 07-01-2014
This is a classic programming exercise given to most 1st year IT students.

The answer is to use a temporary variable to keep the original pwd2 value:

Code:
if [[ "$pwd" == "$pwd2" ]]
then
    echo both are same
else
    temp_pwd=$pwd2
    pwd2=$pwd
    pwd=$temp_pwd
fi

Also note the quotes in the if statement these protect against errors that will arise if your PWD value contains spaces.
 

10 More Discussions You Might Find Interesting

1. Solaris

Swap config - Mirror swap or not?

Hello and thanks in advance. I have a Sun box with raid 1 on the O/S disks using solaris svm. I want to unmirror my swap partition, and add the slice on the second disk as an additional swap device. This would give me twice as much swap space. I have been warned not to do this by some... (3 Replies)
Discussion started by: BG_JrAdmin
3 Replies

2. Shell Programming and Scripting

How to pick values from column based on key values by usin AWK

Dear Guyz:) I have 2 different input files like this. I would like to pick the values or letters from the inputfile2 based on inputfile1 keys (A,F,N,X,Z). I have done similar task by using awk but in that case the inputfiles are similar like in inputfile2 (all keys in 1st column and values in... (16 Replies)
Discussion started by: repinementer
16 Replies

3. Red Hat

swap not defined as swap

free -m : 1023 total swap space created default partition /dev/sdb1 50M using fdisk. i did write the changes. #mkswap /dev/sdb1 #swapon /dev/sdb1 free -m : 1078 total swap space this shows that the swap is on Question : i did not change the type LINUX SWAP (82) in fdisk. so why is... (5 Replies)
Discussion started by: dplinux
5 Replies

4. HP-UX

Swap device file and swap sapce

Hi I have an integrity machine rx7620 and rx8640 running hp-ux 11.31. I'm planning to fine tune the system: - I would like to know when does the memory swap space spill over to the device swap space? - And how much % of memory swap utilization should be specified (swap space device... (6 Replies)
Discussion started by: lamoul
6 Replies

5. Shell Programming and Scripting

unable to return multilple values in perl

hello friends, i have written one perl script.Which opens a file and search for some parameter's value and gets the status of these parameters. but while i am trying to return these value always i am getting false. Can any one please help me.. here is that function: =======================... (5 Replies)
Discussion started by: harpal singh
5 Replies

6. Shell Programming and Scripting

Compare values in two files. For matching rows print corresponding values from File 1 in File2.

- I have two files (File 1 and File 2) and the contents of the files are mentioned below. - I am trying to compare the values of Column1 of File1 with Column1 of File2. If a match is found, print the corresponding value from Column2 of File1 in Column5 of File2. - I tried to modify and use... (10 Replies)
Discussion started by: Santoshbn
10 Replies

7. Shell Programming and Scripting

Converting odd values to even values(or vice-versa) located in a column

Hello All, I have a below data in a .csv file where all rows where col1 is A, col2 is odd numbers, similarly even numbers for all rows where col1 is B. Note that my data has some other columns(not shown here) too (around 100) after col2. Tool,Data A,1 A,3 A,5 .... so on B,2 B,4 .... ... (4 Replies)
Discussion started by: ks_reddy
4 Replies

8. Shell Programming and Scripting

Unable to read assign values to two variables in while loop

I am trying to read a input file which has two columns separated by space Input file server1 server2 server3 server4 server5 server6 When i execute the below while code it reads line by line and a and b variables are able to successfully fetch the values while read a b do echo "$a" echo... (5 Replies)
Discussion started by: chidori
5 Replies

9. Solaris

Explain the output of swap -s and swap -l

Hi Solaris Folks :), I need to calculate the swap usage on solaris server, please let me understand the output of below swap -s and swap -l commands. $swap -s total: 1774912k bytes allocated + 240616k reserved = 2015528k used, 14542512k available $swap -l swapfile dev swaplo... (6 Replies)
Discussion started by: seenuvasan1985
6 Replies

10. Shell Programming and Scripting

How to swap the values in array using for loop?

array=( 8 5 6 2 3 4 7 1 9 0 ) for i in "${array}" do echo $i done # i need the output like this by swapping of array values 0 9 1 7 4 3 2 6 5 8 (7 Replies)
Discussion started by: Meeran Rizvi
7 Replies
PWD(1)								   User Commands							    PWD(1)

NAME
pwd - print name of current/working directory SYNOPSIS
pwd [OPTION]... DESCRIPTION
Print the full filename of the current working directory. -L, --logical use PWD from environment, even if it contains symlinks -P, --physical avoid all symlinks --help display this help and exit --version output version information and exit NOTE: your shell may have its own version of pwd, which usually supersedes the version described here. Please refer to your shell's docu- mentation for details about the options it supports. GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report pwd translation bugs to <http://translationproject.org/team/> AUTHOR
Written by Jim Meyering. COPYRIGHT
Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
getcwd(3) The full documentation for pwd is maintained as a Texinfo manual. If the info and pwd programs are properly installed at your site, the command info coreutils 'pwd invocation' should give you access to the complete manual. GNU coreutils 8.22 June 2014 PWD(1)
All times are GMT -4. The time now is 02:34 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy