linux Archives - Page 7 of 34

linux, Programming

IT Nursery

Appending a line to a file only if it does not already exist

I need to add the following line to the end of a config file: include "/configs/projectname.conf" to a file called lighttpd.conf I am ...

May 28, 2022
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linux, Programming

IT Nursery

How to get the command line args passed to a running process on unix/linux systems?

On SunOS there is pargs command that prints the command line arguments passed to the running process. Is there is any similar command ...

May 27, 2022
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linux, Programming

IT Nursery

Can you Run Xcode in Linux?

Can you run Xcode in Linux? Mac OS X was based on BSD Unix, so is it possible? From what I have heard, ...

May 27, 2022
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linux, Programming

IT Nursery

How do I rename all folders and files to lowercase on Linux?

I have to rename a complete folder tree recursively so that no uppercase letter appears anywhere (it’s C++ source code, but that shouldn’t ...

May 27, 2022
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linux, Programming

IT Nursery

How to specify more spaces for the delimiter using cut?

Is there any way to specify a field delimiter for more spaces with the cut command? (like ” “+) ? For example: In ...

May 27, 2022
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linux, Programming

IT Nursery

Suppress echo of command invocation in makefile?

I wrote a program for an assignment which is supposed to print its output to stdout. The assignment spec requires the creation of ...

May 26, 2022
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linux, Programming

IT Nursery

Add up a column of numbers at the Unix shell

Given a list of files in files.txt, I can get a list of their sizes like this: cat files.txt | xargs ls -l ...

May 26, 2022
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linux, Programming

IT Nursery

How can I quickly sum all numbers in a file?

I have a file which contains several thousand numbers, each on it’s own line: 34 42 11 6 2 99 ... I’m looking ...

May 26, 2022
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linux, Programming

IT Nursery

Is there a way to ‘uniq’ by column?

I have a .csv file like this: stack2@example.com,2009-11-27 01:05:47.893000000,example.net,127.0.0.1 overflow@example.com,2009-11-27 00:58:29.793000000,example.net,255.255.255.0 overflow@example.com,2009-11-27 00:58:29.646465785,example.net,256.255.255.0 ... I have to remove duplicate e-mails (the entire line) ...

May 26, 2022
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Execute bash script from URL

Say I have a file at the URL “http://mywebsite.com/myscript.txt” that contains a script: #!/bin/bash echo "Hello, world!" read -p "What is your name? ...

May 26, 2022
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