Sponsored Content
Homework and Emergencies Homework & Coursework Questions Need some help with my homework Post 302494240 by ilikecows on Sunday 6th of February 2011 11:40:23 AM
Old 02-06-2011
1. Because the PATH variable defines the directories your shell looks in for commands you type that aren't built into the shell. For instance if you type ls, and ls isn't an internal shell command, it looks through the directories in PATH for an executable file with the same name as the command you typed and tries to execure it. /bin and /usr/bin are used to store commonly used executable files such as ls, grep, chmod, etc.

2. Because the `` quotes are command substitution quotes. the shell will execute the command between them and then substitute is ouput in place of `command` as if you had typed it. `date` tries to run a command named whatever date outputs on your system.

3. Its easiest to use three seperate commands. If it takes longer to figure out how to do something in one command than it takes to type 3 and computing resources aren't an issue because you are only going to do it once or you have a tiny amount of data, why waste your time trying to figure out how to make a complex command work?
Code:
cat foo1 > newfile
somecommand >> newfile
cat foo2 >> newfile

4. ${d-*} means if d is unset then assign * to d. see the parameter expansion section of the ksh, sh, or bash man page for more info.

5. yes
This User Gave Thanks to ilikecows For This Post:
 

7 More Discussions You Might Find Interesting

1. Post Here to Contact Site Administrators and Moderators

Homework?

https://www.unix.com/shell-programming-scripting/113946-scripts.html Looks like an assignment or homework to me, does it to you? (5 Replies)
Discussion started by: TonyFullerMalv
5 Replies

2. UNIX for Dummies Questions & Answers

Homework :(

1. You have a very large file, named 'ColMe', tab-delimited, you are asked to process. You are told that each line in 'ColMe' has 7 columns, and that the values in the 5th column are integers. Using shell functions (and standard LINUX/UNIX filters), indicate how you would verify that these... (1 Reply)
Discussion started by: mb774
1 Replies

3. Homework & Coursework Questions

Homework Help.

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: Hello, My name is Jordan and studying at the New Bulgarian University in Sofiya. This is my homework but can... (2 Replies)
Discussion started by: freestar
2 Replies

4. Shell Programming and Scripting

Homework

1. Write a shell script to print the file names of all files having .txt extension of a given directory after converting to uppercase letters. The input (directory name) should be given as command line argument. The script will also check whether sufficient arguments are passed or not and whether... (1 Reply)
Discussion started by: aninda1989
1 Replies

5. Homework & Coursework Questions

Please help me with my homework!!!

A shell script is a script written for the shell, or command line interpreter, of an operating system. Typical operations performed by shell scripts include file manipulation, program execution, printing text etc. Shell : In computing, a shell is a piece of software that provides an interface for... (1 Reply)
Discussion started by: ubun
1 Replies

6. Homework & Coursework Questions

Homework

plz i need code to search about numbers like this : 962785785698 962795565488 962785321565 962777321684 962795979515 i need code to detect just numbers start with "96278" i need it in awk !! thanks (1 Reply)
Discussion started by: eyad mohammad
1 Replies

7. Homework & Coursework Questions

Homework Help

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: 2. Relevant commands, code, scripts, algorithms: Write a command to display lines ending with the... (1 Reply)
Discussion started by: elh009
1 Replies
DEBCONF-MERGETEMPLATE(1)					      Debconf						  DEBCONF-MERGETEMPLATE(1)

NAME
debconf-mergetemplate - merge together multiple debconf template files SYNOPSIS
debconf-mergetemplate [options] [templates.ll ...] templates DESCRIPTION
Note: This utility is deprecated. You should switch to using po-debconf's po2debconf program. This program is useful if you have multiple debconf templates files which you want to merge together into one big file. All the specified files will be read in, merged, and output to standard output. This can be especially useful if you are dealing with translated template files. In this case, you might have your main template file, plus several other files provided by the translators. These files will have translated fields in them, and maybe the translators left in the english versions of the fields they translated, for their reference. So, you want to merge together all the translated templates files with your main templates file. Any fields that are unique to the translated files need to be added in to the correct templates, but any fields they have in common should be superseded by the fields in the main file (which might be more up-to-date). This program handles that case properly, just list each of the translated templates files, and then your main templates file last. OPTIONS
--outdated Merge in even outdated translations. The default is to drop them with a warning message. --drop-old-templates If a translation has an entire template that is not in the master file (and thus is probably an old template), drop that entire template. SEE ALSO
debconf-getlang(1) AUTHOR
Joey Hess <joeyh@debian.org> 2012-09-10 DEBCONF-MERGETEMPLATE(1)
All times are GMT -4. The time now is 08:35 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy