9fans - fans of the OS Plan 9 from Bell Labs
 help / color / mirror / Atom feed
From: Mack Wallace <mackbw@mapinternet.com>
To: 9fans@9fans.net
Subject: [9fans] How does one read a file line by line in an rc script?
Date: Sat,  5 Jan 2019 17:34:17 -0500	[thread overview]
Message-ID: <6A2B4894-94A0-430A-9A17-84A37F1B4BD6@mapinternet.com> (raw)

[-- Attachment #1: Type: text/plain, Size: 489 bytes --]

Another, probably more stupid question - How does one read a text file line by line in an rc script.

In bash this works:

#!/bin/bash  

while read line  
do  
echo $line  
done < $1 

I’ve tried:

#!/bin/rc  

while (line=`{read $1})  
{
echo $line  
} 

Which produces the first line of the file in an infinite loop. I’ve tried the -m argument with no output.


It’s probably simple, but just can’t seem to find the equivalent.

Regards,

Mack




[-- Attachment #2: Type: text/html, Size: 2716 bytes --]

             reply	other threads:[~2019-01-05 22:34 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-05 22:34 Mack Wallace [this message]
2019-01-05 22:45 ` Steve Simon
2019-01-05 23:28   ` Mack Wallace
2019-01-05 23:46     ` Steve Simon
2019-01-06  0:33       ` Mack Wallace
2019-01-06  0:03 ` Anthony Martin

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=6A2B4894-94A0-430A-9A17-84A37F1B4BD6@mapinternet.com \
    --to=mackbw@mapinternet.com \
    --cc=9fans@9fans.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).