Sponsored Content
Top Forums Shell Programming and Scripting how to get the variable in while loop outside of it? Post 302571239 by jjinno on Monday 7th of November 2011 12:31:39 AM
Old 11-07-2011
Here is a little BASH trick to avoid these problems...
Code:
#!/bin/bash

function myLoop()
{
  echo $1 |
  while read WORD
  do
    echo $WORD|egrep "[0-9]" 2>/dev/null 1>/dev/null
    RETVAL=$?

    echo "Something to the screen..." >&2
    echo $RETVAL
  done
}

echo RETVAL=$(myLoop $1)

The basic idea is to echo the value as a function output. This output can then be captured as whatever variable you want.
This User Gave Thanks to jjinno For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

variable in a for loop

Hi... i am trying to ping my servers .The hostnames are present in a file .They are separated by spaces in the file . i am doing the following : a=1 for name in $(cat host2 |cut -d" " -f$a) do echo Pinging server $name ping -c5 $name a=$a+1 done It is... (3 Replies)
Discussion started by: sars
3 Replies

2. Shell Programming and Scripting

loop through variable

i have these data in a variable "$test" BUNGA TERATAI 3 5055 ITH 1 1 JADE TRADER 143W ITH 4 4 MOL SPLENDOR 0307A ITH 3 3 the red coloured are the ones that i want to take and compare what I need to do is to take out the red coloured and then compare to another variable, if same then... (0 Replies)
Discussion started by: finalight
0 Replies

3. Shell Programming and Scripting

For loop Variable

Hi, Is it possible to assign one variable to other. eg. v1="table1" v2="20000" I want table1 to assign 20000 table1=20000 Is there any way? Thanks (2 Replies)
Discussion started by: SushilM
2 Replies

4. Shell Programming and Scripting

Help with variable using loop

Hi I have webserver that I do read data from. Data are stored like this: Huston |1 Portland |2 Hazen |1 Minneapolis |4 Albany |1 Pittsburg |1 Albany |1 Huston |1 Portland|1 Hazen |2 Albany |2 Huston |1 Hazen |1 Script #!/bin/sh user="admin" (1 Reply)
Discussion started by: Jotne
1 Replies

5. Shell Programming and Scripting

For loop with one variable as the name of other

Hello all, I find it hard to explain what I need so I will post the code OVZINCLUDE="16810 16811 1689" PLUS_16810="test" PLUS_16811="test" for VPS in $OVZINCLUDE do echo "Dumping VPSes: $OVZINCLUDE " vzdump --compress --snapshot ${PLUS_$VPS} $VPS done ... (2 Replies)
Discussion started by: click
2 Replies

6. Shell Programming and Scripting

[SHELL: /bin/sh] For loop using variable variable names

Simple enough problem I think, I just can't seem to get it right. The below doesn't work as intended, it's just a function defined in a much larger script: CheckValues() { for field in \ Group_ID \ Group_Title \ Rule_ID \ Rule_Severity \ ... (2 Replies)
Discussion started by: Vryali
2 Replies

7. Shell Programming and Scripting

printing variable with variable suffix through loop

I have a group of variables myLINEcnt1 - myLINEcnt10. I'm trying to printout the values using a for loop. I am at the head banging stage since i'm sure it has to be a basic syntax issue that i can't figure out. For myIPgrp in 1 2 3 4 5 6 7 8 9 10; do here i want to output the value of... (4 Replies)
Discussion started by: oly_r
4 Replies

8. UNIX for Dummies Questions & Answers

Loop and variable not exactly variable: what's wrong

Hello guys, This truly is a newbie question. I'm trying to make a loop to execute simultaneous commands indefinitely while using variable. Here is how my mess looks like (this is just an example): #!/bin/bash IP=`shuf -n 1 IP.txt` # I figured this would be easier to select random lines... (4 Replies)
Discussion started by: bobylapointe
4 Replies

9. Shell Programming and Scripting

Array Variable being Assigned Values in Loop, But Gone when Loop Completes???

Hello All, Maybe I'm Missing something here but I have NOOO idea what the heck is going on with this....? I have a Variable that contains a PATTERN of what I'm considering "Illegal Characters". So what I'm doing is looping through a string containing some of these "Illegal Characters". Now... (5 Replies)
Discussion started by: mrm5102
5 Replies

10. Shell Programming and Scripting

[Solved] How to increment and add variable length numbers to a variable in a loop?

Hi All, I have a file which has hundred of records with fixed number of fields. In each record there is set of 8 characters which represent the duration of that activity. I want to sum up the duration present in all the records for a report. The problem is the duration changes per record so I... (5 Replies)
Discussion started by: danish0909
5 Replies
MSSQL_FETCH_FIELD(3)													      MSSQL_FETCH_FIELD(3)

mssql_fetch_field - Get field information

SYNOPSIS
object mssql_fetch_field (resource $result, [int $field_offset = -1]) DESCRIPTION
mssql_fetch_field(3) can be used in order to obtain information about fields in a certain query result. PARAMETERS
o $result - The result resource that is being evaluated. This result comes from a call to mssql_query(3). o $field_offset - The numerical field offset. If the field offset is not specified, the next field that was not yet retrieved by this function is retrieved. The $field_offset starts at 0. RETURN VALUES
Returns an object containing field information. The properties of the object are: o name - column name. if the column is a result of a function, this property is set to computed#N, where #N is a serial number. o column_source - the table from which the column was taken o max_length - maximum length of the column o numeric - 1 if the column is numeric o type - the column type. EXAMPLES
Example #1 mssql_fetch_field(3) example <?php // Connect to MSSQL and select the database mssql_connect('MANGOSQLEXPRESS', 'sa', 'phpfi'); mssql_select_db('php'); // Send a select query to MSSQL $query = mssql_query('SELECT * FROM [php].[dbo].[persons]'); // Construct table echo '<h3>Table structure for 'persons'</h3>'; echo '<table border="1">'; // Table header echo '<thead>'; echo '<tr>'; echo '<td>Field name</td>'; echo '<td>Data type</td>'; echo '<td>Max length</td>'; echo '</tr>'; echo '</thead>'; // Dump all fields echo '<tbody>'; for ($i = 0; $i < mssql_num_fields($query); ++$i) { // Fetch the field information $field = mssql_fetch_field($query, $i); // Print the row echo '<tr>'; echo '<td>' . $field->name . '</td>'; echo '<td>' . strtoupper($field->type) . '</td>'; echo '<td>' . $field->max_length . '</td>'; echo '</tr>'; } echo '</tbody>'; echo '</table>'; // Free the query result mssql_free_result($query); ?> SEE ALSO
mssql_field_seek(3). PHP Documentation Group MSSQL_FETCH_FIELD(3)
All times are GMT -4. The time now is 11:19 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy