Recent questions tagged Pipe

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pipe - bash pipestatus in backticked command?

in bash, if I execute a couple of commands piped together inside of backticks, how can I find out the exit ... what the answer is. Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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pipe - create tar file from stdin

I want to backup mysql to a tape on-the-fly. Some like mysqldump|tar --filename=mysqlbackup.sql > /dev/tape ... know the tape has any content/ See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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459 views

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pipe - Python - capture Popen stdout AND display on console?

I want to capture stdout from a long-ish running process started via subprocess.Popen(...) so I'm using ... this at all possible? Cheers. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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421 views

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pipe - using a Bash variable in place of a file as input for an executable

I have an executable that is used in a way such as the following: executable -v -i inputFile.txt -o ... way? Many thanks for your assistance See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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717 views

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pipe - How to display the currency symbol to the right in Angular

I have to display Euro currency like this : 583 €. But with this code: {{ price | currency:'EUR':true }} ... (France, Germany, Spain, Italy). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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607 views

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pipe - How to make a bash function which can read from standard input?

I have some scripts that work with parameters, they work just fine but i would like them to be able to read ... read How do I accomplish this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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459 views

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pipe - How to use `jq` in a shell pipeline?

I can't seem to get jq to behave "normally" in a shell pipeline. For example: $ curl -s https://api. ... ; it's for illustration purposes only) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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493 views

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pipe - Python subprocess module, how do I give input to the first of series of piped commands?

I am trying to use Python's subprocess module. What I require is to send input to the first process whose ... enough, thanks for any help. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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665 views

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pipe - Reading piped input with C++

I am using the following code: #include <iostream> using namespace std; int main(int argc, char **argv) { string ... and print a single "Hello"? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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387 views

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pipe - c++ connect output stream to input stream

What I would like to do is create a sort of "pipe" (like a pipe between processes), but between c++ iostreams ... the input of a std::istream? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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609 views

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pipe - How to make a python script "pipeable" in bash?

I wrote a script and I want it to be pipeable in bash. Something like: echo "1stArg" | myscript.py Is it possible? How? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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669 views

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pipe plot data to gnuplot script

I want to create a gnuplot with three plots in it. The data should be inline (as I want to only It should ... gnuplot code, which isn't clean. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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613 views

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pipe - load .profile with proc_open()

Here's the situation: I wrote a back end application, that runs on a certain server. On this server, there ... Am I overlooking something here? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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533 views

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pipe - How to get the PID of a process that is piped to another process in Bash?

I am trying to implement a simple log server in Bash. It should take a file as a parameter and serve it on ... get the PID of the tail process? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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425 views

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pipe - Piping buffer to external command in Vim

I am kind of a Vim novice. I would like to send contents of the current buffer to stdin of external ... external command. Thanks in advance. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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