Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Help needed - UNIX command
Homework and Emergencies Homework & Coursework Questions Help needed - UNIX command Post 303034357 by edujs7 on Tuesday 23rd of April 2019 09:45:24 PM
Old 04-23-2019
Help needed - UNIX command
The 'env' command prints out all of the environment variables and their values.
Come up with a command that prints a list of environment variables whose names
end with either 'NAME', 'DIR' or 'PATH'.

What I've tried.
Code:
$ env | grep '[NAME, DIR, PATH]'

Although it highlights the part of the variables it does not list them as it should. It actually prints the whole lines including the variables. Not sure what I'm missing.

University Of Technology Sydney, Unix Systems Programming
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Unix help needed!

I have a few questions about Unix. Can you please help! 1.How do I create an alias that greps the password file for my username and returns my password file entry? Once I get the alias to work I want to be able to let a friend use it .So that he can use the alias to locate his password entry... (1 Reply)
Discussion started by: JJJ
1 Replies

2. UNIX for Dummies Questions & Answers

Unix help needed !!

friends i wanted to now whehter there exists a book as a solution to the questions posted in exercies of the Design of Unix Operating system by Maurice J Bach !..its really urgent !! (1 Reply)
Discussion started by: darshaan
1 Replies

3. UNIX for Dummies Questions & Answers

Help needed in Basic UNIX

hi friends, How to obtain list of groups we r a member of and redirect it to a file. how to append the details of current OS to a file. how to append the estimated file space to a file. how to append the details of users loged on along wth their current activity into a file. Thank you...I'm... (3 Replies)
Discussion started by: bobby36
3 Replies

4. Shell Programming and Scripting

help needed in ls command

Hi all, i need to write an ls command which will pick up ind_01.txt/pak_01.txt from ind_01.txt pak_01.txt usa_01.txt files in a directory.. i wrote a ls command by storing ind and pak in 2 variables and listing it. Its working fine. But the pattern to be matched should be sent in... (1 Reply)
Discussion started by: anju
1 Replies

5. Shell Programming and Scripting

Help Needed in Unix Script

Hi, I have multiple servers and each server hosts multiple databases. Now i have requirement as below 1) Create a file in any server which will hold all the database name. 2) Write a shell script that will read the file and connect to each and every database. and log out of it one by... (2 Replies)
Discussion started by: amritansur
2 Replies

6. Shell Programming and Scripting

Help needed in unix commands

i define a function outside the nawk command which trims the leading and trailing spaces like function TrimSpace(x) { y=gsub(/^+|+$/,"",x) { return x } } and i want to call this function in nawk commad like. nawk '{print TrimSpace($1)}' file Note:... (2 Replies)
Discussion started by: malikshahid85
2 Replies

7. UNIX for Dummies Questions & Answers

dd command help needed.

Hi I m creating a file which will serve as a virtual harddisk . I m using following command to create a file. #dd if=/dev/zero of=/tmp/Sample.dat bs=1M count=1024 I have following doubts regarding the operation. 1) In above example i m creating a file with byte size of 1M .However in... (1 Reply)
Discussion started by: pinga123
1 Replies

8. Shell Programming and Scripting

Unix Script or command Needed

Hi, I am new to Shell Scripting. I need to pick the files from one directory and place them in another directory based on time stamp.It should pick the files if the files is not accessed for 1 hour. Can any one please help me how to work on this. Thanks in Advance. Regards, Prakash (1 Reply)
Discussion started by: kvrprakash
1 Replies

9. Homework & Coursework Questions

Unix Homework Help needed

1 Petras Pavardenis 1980 5 08 Linas Bajoriunas 1970 10 3 Saulius Matikaitis 1982 2 5 Mindaugas Stulgis 1990 7 6 Rimas Nasickis 1964 10 7 ... (1 Reply)
Discussion started by: vaidastf
1 Replies

10. Shell Programming and Scripting

Command needed

Hi, I have the date as 20130101 and i need it to rephrased to 2013-01-01. Any command which can do this. (5 Replies)
Discussion started by: ATWC
5 Replies

LEARN ABOUT OSX

env

ENV(1)							    BSD General Commands Manual 						    ENV(1)

NAME

     env -- set and print environment

SYNOPSIS

     env [-i] [name=value ...] [utility [argument ...]]

DESCRIPTION

     env executes utility after modifying the environment as specified on the command line.  The option name=value specifies an environmental
     variable, name, with a value of value.  The option '-i' causes env to completely ignore the environment it inherits.

     If no utility is specified, env prints out the names and values of the variables in the environment, with one name=value pair per line.

DIAGNOSTICS

     If the utility is invoked, the exit status of env shall be the exit status of utility; otherwise, the env utility exits with one of the fol-
     lowing values:

     0	     The env utility completed successfully

     1-125   An error occurred in the env utility.

     126     The utility specified by utility was found, but could not be invoked.

     127     The utility specified by utility could not be found.

COMPATIBILITY

     The historic - option has been deprecated but is still supported in this implementation.

SEE ALSO

     execvp(3), environ(7)

STANDARDS

     The env utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'').

BUGS

     env doesn't handle commands with equal (``='') signs in their names, for obvious reasons.

BSD
								  August 27, 1993							       BSD
All times are GMT -4. The time now is 07:44 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy