Login or Register to Ask a Question and Join Our Community


UNIX for Advanced & Expert Users

[BASH] Read pipe of unkown number of arguments?

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums UNIX for Advanced & Expert Users [BASH] Read pipe of unkown number of arguments?
# 8  
Old 06-03-2015
your stdin isn't the tty anymore, it's a pipe... you can try opening the tty directly again:


Code:
mute@tiny:~$ printf %s\\n one 'two foo' 3 | ( while read file; do printf 'use [[%s]]? ' "$file"; read </dev/tty; [[ $REPLY = [Yy]* ]] || continue; echo "okay i'll use $file"; done; )
use [[one]]? n
use [[two foo]]? y
okay i'll use two foo
use [[3]]? n

This User Gave Thanks to neutronscott For This Post:
sea
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Cat a script, pipe it, then pass arguments to it?

suppose i have a perl script that is normally run this way: ./checkdisk.pl -H hostname -w 40 -c 80 but, for whatever reason, i cannot run the script directly as it should. But i can cat it through pipe. How can i pass the arguments "-H hostname -w 40 -c 80"? so this is what i'm doing,... (6 Replies)
Discussion started by: SkySmart
6 Replies

2. Shell Programming and Scripting

Function in one-linef and pass arguments in a pipe

I need to declare a function, this function will contain a script, this script cannot be in a file but must be piped. and then, for the script to run, i need to pass arguments to it. everything has to be on one line. so i'm basically looking for a one-liner here's what i'm doing: myfunc ()... (3 Replies)
Discussion started by: SkySmart
3 Replies

3. Shell Programming and Scripting

If number of arguments =$ or $

Hi, I am having a bit of trouble writing this. I have the script working if I only use 1 of these but it's not working the way i need it to. Basically more above the script i may or may not have a 5th variable defined. if i do it does a process before getting to the rest of the script.... (2 Replies)
Discussion started by: techy1
2 Replies

4. Shell Programming and Scripting

Multiple arguments to read

I am developing a script where 3 other scripts are included. This is a graph related script. COMPLETE IDEA: -There are 3 different graph scripts. I would like to create a master graph with all 3 in one. -User chooses the type of graph -User is asked to enter the required auguments (... (7 Replies)
Discussion started by: newkid.7955
7 Replies

5. Shell Programming and Scripting

Bash Script Help...search then read from file: change text and pipe back...

Hello, I am trying to make a bash script that can pull data from a file and then change one part of said data. I want to search by username and pull the full line. That way there is a way to replace just one part of that line then return it back to the file. My Data is stored like: ... (1 Reply)
Discussion started by: serverfull
1 Replies

6. Shell Programming and Scripting

bash read within function with arguments

I have trouble getting this logic to work #!/bin/bash function assign_var(){ while do read -p "$2 :" $3 done } assign_var '$IPADDRESS' ipaddress IPADDRESS Basicly, i want to make sure that entry is made (i can add more sophisticated checks later), but the idea is to recycle... (11 Replies)
Discussion started by: serverchief
11 Replies

7. Homework & Coursework Questions

checking for number of arguments.

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: Your script must check for the correct number of arguments (one argument). If somebody tries to invoke the... (1 Reply)
Discussion started by: brooksie91
1 Replies

8. UNIX for Dummies Questions & Answers

maximum number of arguments

Hi, What is the maximum number of arguments that could be passed to zsh ? To find out that I tried a simple script. And the maximum number of arguments that could be passed turned out to be 23394 #! /bin/zsh arg=1 i=1 subIndex=23000 while do arg=$arg" "$i i=$(($i + 1))... (9 Replies)
Discussion started by: matrixmadhan
9 Replies

9. Programming

read arguments from shell

I have to write a C program using sys call (read, no fread) to read from shell all the parameters, without know how many are them. I tryed in some ways, but I have no success. Any Idea? Can I use read to read from stdin? (1 Reply)
Discussion started by: DNAx86
1 Replies

10. Shell Programming and Scripting

read number of arguments in c shell

I am writing script in c shell and using this script to read the command line arguments, but it is not working. Pl. someone let me know what is the problem. #!/bin/csh -f if ($#argv <> 2) then echo "you must give exactly two parameters" else set name1 = $argv ... (1 Reply)
Discussion started by: skumar11
1 Replies
Login or Register to Ask a Question