Pipe to awk to variable Post: 302552217

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1. Shell Programming and Scripting

Is it better to grep and pipe to awk, or to seach with awk itself

This may just be a lack of experience talking, but I always assumed that when possible it was better to use a commands built in abilities rather than to pipe to a bunch of commands. I wrote a (very simple) script a while back that was meant to pull out a certain error code, and report back what...

2. Shell Programming and Scripting

Assign command (with pipe) output to a variable

Hi , I would like to assign command (with pipe) output to a variable. The code is as follows. The goal of the code is to get the last folder folder with a particular name pattern. myDate=`ls | grep 2009 | tail -1` echo "myDate=" $myDate However, in the presence of the pipe, the code...

3. Shell Programming and Scripting

Trying to embed a pipe with a variable IN a variable

Hey all, I've tried this for quite some time now and haven't figured it out... I was hoping one of you shell scripters could help a newbie out :) I am trying to take the 1st parameter of my script and use it as the search pattern for my for loop #!/usr/bin/sh set -vx REGEX=$1 ...

4. Shell Programming and Scripting

a pipe within a variable

Hi, I am trying to run this command: ED_CMD="$Access_OPS $ED_Logs_Dir/access | $lgrep -v $Access_Err" $lgrep $ED_CMD However, i am getting an error "Failed to open |: Broken pipe at " My question is how to put a pipe within a variable. Thanks. John.

5. Shell Programming and Scripting

using awk for setting variable but change the output of this variable within awk

Hi all, Hope someone can help me out here. I have this BASH script (see below) My problem lies with the variable path. The output of the command find will give me several fields. The 9th field is the path. I want to captured that and the I want to filter this to a specific level. The...

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help with sed or awk with less pipe

<tr><th align=right valign=top>Faulty_Part</th><td align=left valign=top>readhat version 6.0</td></tr> <tr><th align=right valign=top>Submit_Date</th><td align=left valign=top>2011-04-28 02:08:02</td></tr> .......(a long string) I want to get all the field between "left valign=top>" and "...

7. Shell Programming and Scripting

awk print pipe

Hey fellas, I wrote an script which its output is like this: a 1 T a 1 T a 2 A b 5 G b 5 G b 5 G I wanna print $1 $2 and the total number of $2 value as the third column and after that $3. Sth like this: a 1 2 T a 2 1 A b 5 3 G I know how to do it with a given input...

8. Shell Programming and Scripting

BOTH pipe and file(s) into awk

Hello all, quick question: is it possible to pass input into AWK BOTH with a pipe AND a file at the same time, something like this: command .......|awk '.................' FILEIN > fileout All I read says either one or the other, not both, is it at all possible? And how would the...

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awk pipe to sort

In the below awk to add a sort by smallest to largest should it be added after the END? Thank you :). BEGIN { FS="*" } # Read search terms from file1 into 's' FNR==NR { s next } { # Check if $5 matches one of the search terms for(i in s) { if($5 ~ i) { ...

10. UNIX for Beginners Questions & Answers

Help on passing an input variable to the voronota program (after third pipe)

Dear UNIX forum members, I am using macbook pro 13 (2015 edition) with MAC OS Mojave and am trying to write the shell script where when it is run through terminal it asks for an input (in the code below an input variable is domains) and then that input becomes capital letter or letters which...

LEARN ABOUT OSF1

learn

learn(1)						      General Commands Manual							  learn(1)

NAME

       learn - Provides computer-aided instruction for the C shell

SYNOPSIS

       learn [-directory] [subject] [lesson]

       The learn command provides computer-aided instruction courses and practice in the use of Tru64 UNIX.

OPTIONS

       Allows you to exercise a script in a nonstandard place.

DESCRIPTION

       To  get	started,  enter learn; if this is the first time that you are invoking the learn command, you are guided through a series of ques-
       tions to determine what type of instruction you want to receive.

       If you have used learn before and left your last session without completing a subject, the program uses information  in	$HOME/.learnrc	to
       start you up in the same place you left off.

       To  bypass questions, enter a subject or lesson.  In order to enter a lesson, you must know the lesson number that you received in a previ-
       ous learn command session. If you do not know the lesson number, enter the lesson number as a subject.  The learn command searches for  the
       first  lesson  containing  the subject you specified. If the lesson is a - (dash), learn prompts for each lesson; this is useful for debug-
       ging.

       You can specify the following subjects:

       files editor vi morefiles macros eqn C

SUBCOMMANDS

       There are a few special commands.  The bye command terminates a learn session, and the where command tells you of your  progress  (where  m
       tells  you more.)  The again command redisplays the text of the lesson and again lesson lets you review lesson. The hint command prints the
       last part of the lesson script used to evaluate a response, while hint m prints the entire lesson script.  This	is  useful  for  debugging
       lessons and might possibly give you an idea about what is expected.

EXAMPLES

       To take the online lesson about files, enter: learn files

       You are then prompted for further input.

FILES

       Playpen directories.  Start-up information.

SEE ALSO

       Commands:  csh(1), ex(1)

																	  learn(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Is it better to grep and pipe to awk, or to seach with awk itself

Discussion started by: DeCoTwc

2. Shell Programming and Scripting

Assign command (with pipe) output to a variable

Discussion started by: jeff_cen

3. Shell Programming and Scripting

Trying to embed a pipe with a variable IN a variable

Discussion started by: Keepcase

4. Shell Programming and Scripting

a pipe within a variable

Discussion started by: john_prince