Linked Questions

2
votes
1answer
412 views

Is this considered an argument? [duplicate]

Some binaries in Unix-Linux systems like ping or mount have a long argument. For example if we write ping -h in the terminal, one of the options is: Usage: ping [-aAbBdDfhLnOqrRUvV64] Is this long ...
1
vote
0answers
34 views

What Does the Output of “--help” Mean? [duplicate]

When using the --help option of a terminal program, a lot of output is produced. It usually starts with Usage: and then a bunch of things and brackets and parentheses. My question is, what doe the ...
231
votes
4answers
178k views

What are the differences between most, more and less?

I'm now using Arch Linux, and find a command most works like more and less. To understand the differences between them is a confusing problem. The question Isn't less just more? mentions the ...
29
votes
4answers
15k views

Understand synopsis in manpage

I have not been able to understand the SYNOPSIS section in the manpage of a command. For example, let's see the manpage of man itself. By man man: SYNOPSIS man [-C file] [-d] [-D] [--...
10
votes
3answers
1k views

Is there any documentation for udev builtins?

The man page for udev mentions in several places that certain rules options can be used to invoke 'builtin' commands, which are apparently built in to the udev program itself. However, I haven't been ...
4
votes
1answer
22k views

LFTP Script to Download Files

I want to write a lftp script that will download files every 15 minutes from a server every x amount of time. Can someone advise how i can do this? Thanks
8
votes
2answers
4k views

grep the man page of a command for hyphenated options

When I grep the man page of the find command for matches to type it returns a lot of search results that I don't want. Instead I want to use a command that returns only the search results for -type. ...
6
votes
4answers
1k views

How can I tell if “unzip” will create a single folder ahead of time?

A common scenario is having a zip file in a directory with other work: me@work ~/my_working_folder $ ls downloaded.zip workfile1 workfile2 workfile3 I want to unzip downloaded.zip, but I don't ...
2
votes
2answers
735 views

find command in linux

I was told by my friend that one can work with -r switch to find files recursively in directories and subdirectories.Please tell me the error in the given statement it does not work find / -type f -r ...
3
votes
1answer
491 views

Linux command line tool to find specific programs

Can you please indicate me how do you find programs in the terminal without knowing the exact name? As far as I remember, there was a command line tool that helps the user to find out other programs /...
3
votes
1answer
372 views

How shall I understand the routing table “local”?

$ ip route show table local broadcast 127.0.0.0 dev lo proto kernel scope link src 127.0.0.1 local 127.0.0.0/8 dev lo proto kernel scope host src 127.0.0.1 local 127.0.0.1 dev lo proto kernel scope ...
0
votes
3answers
262 views

Understanding options to sort

part 1 ps -e | sort -k 1 -nr What is the interpretation of the above command? I want to understand the role of -nr. It is not clearly given the man pages of sort. part 2 When you open the man ...
1
vote
1answer
68 views

Linux man: How do you “see ld.so(8)”?

I have read the Wikipedia man page, this StackExchange page, and the man section of Unix and Linux System Administration Handbook, 4th edition, page 16, but they don't seem to explain how to use man ...