And I'm trying to count the number of slashes in each line. I figured (with my limited knowledge of bash) that the best thing to use would be sed. So I ran this to print "not /": sed '!s////g' file # and eventually adding " | wc -m" to it. and I got the same result as if I ran cat, no modification at all:
This has to also show the line count. I can get it to show the files but not the line count. What is the single command used to identify only the matching count of all lines within files under the /etc directory that contain the word „HOST? List only the files with matches and suppress any error messages.
Write a script that will take a list of filenames as arguments and output a count of how many of them are regular files, and how many of them are scripts (if the file is executable, it will be assumed to be a script file)
I'm the POC for all my families Linux computers. Is it possible to get statistics on which programs are accessed, how frequently, for how long and by which user?
When it comes time to upgrade it would be useful so I know which programs to concentrate my testing. I usually just e-mail and ask but every time people forget to send me the programs they actually use.
anyway i need to take the average of all rows with the same 1st number(key). i.e.
1, 3, 4.66, 5.66, 5 2, 3.5, 4.5, 5, 3.5
I know this is something awk/sed would be great for, i just dont have enough experience with them to accomplish it, Also, what about averaging those columns together? so, after I output this to a file, id like to get another like:
1, 4.58 1, 4.125
The number of colums to add might not always be 4 either. EDIT: this might be easier to do in gnuplot, so I mainly just need an answer to the first part.
I have several files with many lines something like this:
I'm trying to write a script that will count the number of characters per line that doesn't contain a ">" symbol and give me an average of those values. I have most of the script together but I can't figure out how to connect some of the steps.
i try to make a script in bash that u choose a number for example 501 and another number like 1 and find how much the 1 number repeat in all numbers from 1 to 501 for example 11 -->1 repeat 2 times.in 1 to 501 the number 1 repeat 200 times.
I am using grub of version 2, and current resolution vga=795 (probably). X runs at 1680x1050. So what I would like to know is, how can I count the right VGA parameter number for grub, to use another resolution?
I am a noob and I am trying to display a count of the number of subdirectories in a directory. I have been able to use find -type d to list directories and subdirs but I want a numerical value of dirs and subdirs. I know ls -l gives a count but when I try ls -l -d all it shows is "." I also have tried a combination with the -R option but nothing seems to be working for me.Please forgive my ignorance but I am working on a script for class and this is the first step.
i need to count the number of files and put the output into a variable. i used wc -l filename but i couldnt find an option to put the output to variable. example if the number o line is 5, i need the output of echo $x is 5.
I need to write shell script which can take number of files and count total rows from all CSVs and display total number of rows counted in all files. Is there any possibility of doing that using shell script and if yes then how.
I have a 32GB flash drive that I want to:- Have an installation o with no X-terminal. Only command-line.- Be bootable by plugging into any computer and turning that computer on.My wishes are strictly for writing purposes. I want to write in a minimal environment where there's no distraction by other programs or Internet. I don't care what programs exist on the linux distro as long as it has a text-editor.Please tell me how to proceed. What linux distro I should get. How to install it on a USB stick. Anything I need to know.
want to copy a file from my desktop to usb drive in command line...how can i do it...i have no gui interface..all i want to do it by command line.i.e how to mount the usb drive and copy the file to usb and then unmount it..i also want to access windows xp drive from linux in command line without gui interface...in opensuse there is windows folder under file system but in ubuntu there is no such option...so if i want to place a file from linux to windows drive such as d ..how can i manage it with command line...no gui interface is available...
I love Ubuntu Linux - especially the commmand line. But I have to admit that, at least for now, Windows is more user-friendly - there's more software for it, more drivers, and more stuff just works.
Knowing that Mac is built on Unix makes me wonder if it's the sweet spot between them. But I wonder: how similar is the Mac command line to Linux's bash? Could I pick right up with using vim and bash scripting and git, etc? Would common commands like changing directories be different? Does anybody know an online "compare and contrast" resource?
I just started using ubuntu after being a long time windows user.
what i find really interesting is that in command line, i can type many programs and commands, eg firefox can be run via command line from anywhere. In windows cmd prompt, im used to having to run the .exe file by first navigating to it, then being able to run the .exe.
what i wanna know is how does linux know all the programs at the command line?
I have a utility that works with files. The utility is crashing at after about 120 files. The input to the utility is a file containing a filelist. I want to cut the file with the file names in it to seperate files containing about one hundred or so. My thought was to determine the number of lines/100 and then use head and delete to create temporary files to run the utility multiple times to prevent the crash. When I tried to create a variable using the wc -l command the output gives me the number of total lines but it also includes the filename of the input file. (873 Filename.txt) I can not figure out how to remove the Filename.txt from the variable.
Possible Duplicate: Version of Linux with a command prompt?
Which software of Linux to use for command line running? Since I am using MySQL to run from Linux and want to run Linux, which software to download in Linux? There are multiple ones. Can I run .sh scripts and learn how to operate on Linux using the command line? Also use MySQL as backend on Linux?
I have a Debian Linux desktop. I want to change the screen's brightness without pressing the brightness button of my monitor. How can I do this? is this possible in command line or is there an application to be installed?