A command line is a user interface for interacting with software via text commands. They are most often seen as an alternative to the more popular graphical user interfaces (GUI). Because of this, some people use the acronym CLI — command line interface — particularly when drawing ...
2
votes
3answers
29 views
Regarding separate a single file into multiple files according to line separation
Currently, I have a plain text file, A, such as
lowest priority
very high significance.
outstanding
very novel
In this file, every line contains a sentence. I want to separate this file into ...
1
vote
1answer
21 views
How to change the default line length for od and hexdump
Is there any way to change the default line length for the od and hexdump commands? Can't see anything apropriate in the man pages.
1
vote
1answer
63 views
How to get exact file size and file name?
Right now I am using ls -lt /my/directory (see below) then php parses the output. But inconsistently because the delimiter is space and there might be two or more spaces in between two fields.
The ...
10
votes
2answers
252 views
What is a simple way to schedule a single event to happen at some time in the future?
There are often times that I want my computer to do a single task, but not right now. For example, I could have it notify me in 30 minutes that it is time to leave work. Or maybe I want it to run a ...
4
votes
1answer
48 views
Order of redirections
I don't quite understand how the computer reads this command.
cat file1 file2 1> file.txt 2>&1
If I understand, 2>&1 simply redirect Standard Error to Standard Output.
By that ...
1
vote
1answer
35 views
How to format a curl command for a special task?
There is a search page in a form http://site.com/search.php and it sends a search query via POST request. I want to fetch this request via curl command line tool to inspect a POST request.
The HTML ...
2
votes
3answers
65 views
Recursive grep for words in a particular file type
I wanted a command line command to search all shell scripts in the filesystem for a particular word, so I asked around at work and got the following solutions:
grep word `find / -name \*.sh ...
5
votes
5answers
233 views
Efficiently delete large directory containing thousands of files
We have an issue with a folder becoming unwieldy with hundreds of thousands of tiny files.
There are so many files that performing rm -rf returns an error and instead what we need to do is something ...
0
votes
4answers
43 views
Renaming files works, but soft links point to the old names. How can I fix that?
For example, I'm renaming many files inside a tree like this:
[bash]$ for file in `find . -name "*gsf*"`; do `mv $file ${file/gsf/msf}`; done
That renames all the instances of "gsf" in file names ...
4
votes
0answers
41 views
Refresh/reload active browser tab from command line?
I'm trying to set up a custom toolchain where the browser (Firefox or, preferrably, Chrome) is often/frequently/constantly forced to refresh from the commandline.
(The idea is to instantly see the ...
3
votes
2answers
38 views
How do I create a ZIP archive that preserves only the structure of the target directory and below?
I need to create a zip archive where the unzipped result preserves the directory structure from the specified directory down. I also need to do this without actually switching to the directory.
My ...
1
vote
1answer
45 views
What does @ sign mean in 'ls' output on Mac OSX Lion terminal? [closed]
Possible Duplicate:
what does the @ mean in ls -l?
What does the @ sign mean in the following "ls" output?
-rw-r--r--@ 1 root wheel 489 Jan 4 13:14 boot.plist
1
vote
1answer
28 views
How to display server's TLS certicicate details in terminal?
Having TLS certificate in local file, I can display its details using syntax like:
openssl x509 -text -noout -in cert_filename
Is there any way to display remote SMTP/POP3/HTTP server's TLS ...
2
votes
3answers
59 views
Unique file name for different files
I'm working with graphic design. I've downloaded many files (EPS files, PSD files, etc) from various websites.
Because it come from various websites, after downloaded from more than 10 different ...
3
votes
3answers
46 views
command line audio with mpg123 - how to save position in audio and begin from that location next time?
I am contemplating using mpg123 as an audiobook player. I can't find any other good audiobook players for Linux, and I think mpg123 may be my best option.
My audiobooks are organized by directories ...
