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Recent questions tagged Unix
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unix - What do double-asterisk wildcards mean?
I've tried the following command but I am having trouble interpreting it: ls ** but I'm not sure exactly what ... and why that is the result. See Question&Answers more detail:os...
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unix - In Linux, how to tell how much memory processes are using?
I think I may have a memory leak in my LAMP application (memory gets used up, swap starts getting used, etc. ... see this information in *nix? See Question&Answers more detail:os...
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unix - List files recursively in Linux CLI with path relative to the current directory
This is similar to this question, but I want to include the path relative to the current directory in ... using standard Unix commands? See Question&Answers more detail:os...
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unix - Why always ./configure; make; make install; as 3 separate steps?
Every time you compile something from source, you go through the same 3 steps: $ ./configure $ make $ make ... people do the 3 steps separately? See Question&Answers more detail:os...
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unix - Need to link cmake project to dl library
I am building a shared library that uses the dlopen and dlsym system calls. When I build, I get the error undefined ... can I fix this? Thanks! See Question&Answers more detail:os...
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unix - How to attach a process in gdb
I have a simple C program that forks a process and then runs an executable. I want to attach the child process ... or directory. Any idea why? See Question&Answers more detail:os...
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853
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unix - Using grep for multiple search patterns
Consider I have the following stream of data: BODY1 attrib1: someval11 attrib2: someval12 attrib3: someval13 ... single pattern specified. See Question&Answers more detail:os...
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unix
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unix - Compare a string using sh shell
I am using SH shell and I am trying to compare a string with a variable's value but the if condition is always ... with a NULL or empty string? See Question&Answers more detail:os...
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Oct 17, 2021
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unix - Equivalent of *Nix 'which' command in PowerShell?
How do I ask PowerShell where something is? For instance, "which notepad" and it returns the directory where ... according to the current paths. See Question&Answers more detail:os...
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unix - Shell one liner to prepend to a file
This is probably a complex solution. I am looking for a simple operator like ">>", but for prepending. I ... tmp cat myheader tmp > myfile Anything smarter? Question&Answers:os...
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unix - Generate sha256 with OpenSSL and C++
I'm looking to create a hash with sha256 using openssl and C++. I know there's a similar post at Generate SHA ... I/opt/ssl/include/ -L/opt/ssl/lib/ -lcrypto Question&Answers:os...
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Oct 17, 2021
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unix - How/When does Execute Shell mark a build as failure in Jenkins?
The horror stories I found while searching for an answer for this one... OK, I have a .sh script which ... does Execute Shell mark my build as a failure? Question&Answers:os...
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Oct 17, 2021
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unix - Executing JavaScript without a browser?
I am looking into Javascript programming without a browser. I want to run scripts from the Linux or ... viable scripting language for processing large data. Question&Answers:os...
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Oct 17, 2021
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1
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unix - How does grep run so fast?
I am really amazed by the functionality of GREP in shell, earlier I used to use substring method in java but now I ... on the web. Can anyone help me with this? Question&Answers:os...
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Oct 17, 2021
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unix
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unix - Why an ELF executable could have 4 LOAD segments?
There is a remote 64-bit *nix server that can compile a user-provided code (which should be written in ... certain exploits, but why have two such segments? Question&Answers:os...
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Oct 17, 2021
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unix - How to remove carriage return from a variable in shell script
I am new to shell script. I am sourcing a file, which is created in Windows and has carriage returns, using the ... How can I remove the ' ' from the variable? Question&Answers:os...
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Oct 17, 2021
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unix - How to set environment variable for everyone under my linux system?
Can I have certain settings that are universal for all my users? Question&Answers:os...
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Oct 17, 2021
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unix - What's the difference between nohup and a daemon?
What are the implications of running a script as a daemon versus using nohup? I know what the difference is in ... but what impact does that have on my script? Question&Answers:os...
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unix - Replace comma with newline in sed on MacOS?
I have a file of strings that are comma separated. I'm trying to replace the commas with a new line. I've tried ... but it is not working. What am I missing? Question&Answers:os...
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Oct 17, 2021
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unix
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unix - Delete specific line number(s) from a text file using sed?
I want to delete one or more specific line numbers from a file. How would I do this using sed? Question&Answers:os...
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Oct 17, 2021
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unix
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unix - Use grep --exclude/--include syntax to not grep through certain files
I'm looking for the string foo= in text files in a directory tree. It's on a common Linux machine, I ... with common tools (like grep or the suggested find). Question&Answers:os...
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unix - Grep for literal strings
I'm after a grep-type tool to search for purely literal strings. I'm looking for the occurrence of a ... but just search for literal occurrences of a string? Question&Answers:os...
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Oct 17, 2021
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unix
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748
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1
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unix - How to provide password to a command that prompts for one in bash?
I'm writing a UNIX shell function that is going to execute a command that will prompt the user for a password. ... of piping a password into a command in bash. Question&Answers:os...
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Oct 17, 2021
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740
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unix - Is there any simple way to benchmark Python script?
Usually I use shell command time. My purpose is to test if data is small, medium, large or very large set, how ... tools for Linux or just Python to do this? Question&Answers:os...
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unix - How to pretty print XML from the command line?
Related: How can I pretty-print JSON in (unix) shell script? Is there a (unix) shell script to format XML in human- ... </foo> <bar value="ipsum" /> </root> Question&Answers:os...
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unix - What is the difference between a symbolic link and a hard link?
Recently I was asked this during a job interview. I was honest and said I knew how a symbolic link behaves and ... link and how it differs from a symbolic one. Question&Answers:os...
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Oct 17, 2021
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unix - How can I pretty-print JSON in a shell script?
Is there a (Unix) shell script to format JSON in human-readable form? Basically, I want it to transform the following: { " ... "foo": "lorem", "bar": "ipsum" } Question&Answers:os...
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unix - How to read a file into a variable in shell?
I want to read a file and save it in variable, but I need to keep the variable and not just print out the file. ... a variable! Is there an easy way to do this? Question&Answers:os...
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