How to use stdin as argument for script? Post: 302987138

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Cannot redirect to STDIN in a shell script

I am unable to use STDIn redirection with < (commands) When I do the following, both approaches work and give the same results: 1. $ printf "aaa\nbbb\n" > file1 $ printf "111\n222\n" > file2 $ cat file1 file2 aaa bbb 111 2222. $ cat <(printf "aaa\nbbb\n") <(printf "111\n222\n") aaa...

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get positive number n as argument script must calculate the factorial of its argument

Can someone please help me with this SHELL script? I need to create a script that gets a positive number n as an argument. The script must calculate the factorial of its argument. In other words, it must calculate n!=1x2x3x...xn. Note that 0!=1. Here is a start but I have no clue how to...

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reading from stdin in a shell script

Hello, I've managed to get my .procmailrc file to work. At least it triggers a script which creates a file. But the file is empty. How do I get at the data that's been piped? I've done much creative googling to no avail. I belive it should be in stdin, but I can't figure out how to access...

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Shell script to pass multiple stdin to prorgam?

Running on AIX 5.3L. I have a program "foo" written in Fortran that requires 3 levels of inputs from stdin (command prompt). > foo Enter Input 1: a Enter Input 2: b Enter Input 3: c running foo success! > How do I get a shell script to run this automatically? > echo "a" | foo...

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script hangs when reading from stdin

script: while read inputline; do if ; then if ; then break fi fi done Looks like the script hangs when stdin is empty or contains space. Any ideas on how to circumvent this? is it possible to use getline to process stdin content?

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Make script that run with argument if not run from configuration file argument

Hello, Is there any method thorugh which script can take argument if pass otherwise if argument doesn't pass then it takes the argument from the configuration file i.e I am workiing on a script which will run through crontab and the script will chekout the code ,zip and copy to the...

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Suplying stdin input within script

Hi , I have script in that , i uninstall rpm using rpm -ef $rc1 now my query is rpm -ef is asking user input DO YOU Want To continue (YES/NO) for each uninstalltion. now i want to supply YES variable when it asks for above statement . so that i dont have to give user input from...

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Passing stdin value into a script that is called from another script

I'm trying to automatically pass user input values into a script that is being called from another script, below is my current script and I added a comment next to the script where it asks user to enter input value. Thanks, mbak #!/bin/ksh echo " Adding disks for DB server then Enter YES...

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Accept data from file or stdin in script

I have a script that looks like this:sed -f myfile.sed $1 > $1.out called myscript and would like to change it so the parameter isn't necessary: ls *.idx | myscript | xargs some_command What do I need to add so it can run either way? TIA ---------- Post updated at 09:41 AM ----------...

10. Shell Programming and Scripting

Need help with the Script to pass stdin in run time

I have put a script inside bash_profile of user "root". That script executes when we do "sudo su -" and prompts with a question : "Why are you logginf as root?" and users have to pass the reason then they get prompt. Inside script we have used "read -p input" to take input from user. I am a...

LEARN ABOUT XFREE86

fcloseall

FCLOSEALL(3)						     Linux Programmer's Manual						      FCLOSEALL(3)

NAME

       fcloseall - close all open streams

SYNOPSIS

       #define _GNU_SOURCE	   /* See feature_test_macros(7) */
       #include <stdio.h>

       int fcloseall(void);

DESCRIPTION

       The  fcloseall() function closes all of the calling process's open streams.  Buffered output for each stream is written before it is closed
       (as for fflush(3)); buffered input is discarded.

       The standard streams, stdin, stdout, and stderr are also closed.

RETURN VALUE

       This function returns 0 if all files were successfully closed; on error, EOF is returned.

ATTRIBUTES

       For an explanation of the terms used in this section, see attributes(7).

       +------------+---------------+------------------------+
       |Interface   | Attribute     | Value		     |
       +------------+---------------+------------------------+
       |fcloseall() | Thread safety | MT-Unsafe race:streams |
       +------------+---------------+------------------------+
       The fcloseall() function does not lock the streams, so it is not thread-safe.

CONFORMING TO

       This function is a GNU extension.

SEE ALSO

       close(2), fclose(3), fflush(3), fopen(3), setbuf(3)

COLOPHON

       This page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and  the
       latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

GNU
								    2017-09-15							      FCLOSEALL(3)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Cannot redirect to STDIN in a shell script

Discussion started by: metaltree

2. Shell Programming and Scripting

get positive number n as argument script must calculate the factorial of its argument

Discussion started by: I-1

3. Shell Programming and Scripting

reading from stdin in a shell script

Discussion started by: mmesford

4. Shell Programming and Scripting

Shell script to pass multiple stdin to prorgam?

Discussion started by: discoganya