Trying to use the read command. How do you add a 2nd option? In this example I'd like to offer two options, pre and post. If you answer pre, you get one output but if you answer post, you get another output.
'Morning
vmstat 1 1|sed 1,2d|awk '{printf("%s\n",$1)}'|read var
echo $var
This syntax run on AIX (ksh) but not on linux (bash).
I think that problem is the read command, because the following syntax is ok :
vmstat 1 1|sed 1,2d|awk '{printf("%s\n",$1)}'
Could someone help me!
regards... (16 Replies)
I have file which is space filled likE below
Note: here spaces are replaced by |.
When I use read command to read this file all the spaces are truncated only the default space is not removed. The output is
Note: here spaces are replaced by |.
Can this default truncation be override? (4 Replies)
hi all
iam not able use read command in the while loop in the following program
while read line
do
echo $line
echo "enter name"
read name
echo "your have entered $name"
done < work.txt
THE READ COMMAND INSIDE THE WHILE LOOP IS NOT WORKING, IS ANY OTHER WAY TO SOLVE THIS... (7 Replies)
Is there a way to use the READ command and force the user to enter a non-zero length string? If the user enters a zero length string the user input is rejected.
code:
print "what is the answer: \n"
read answer (2 Replies)
Hi everyone,
I have problem while writing a shell script for linux (Red Hat).
First I need to create a read command. I tried to google this but so far I can't sort this out. I hope you will be able to help me.
I have to read a file like this :
GESTION_DATA_SET_variable1_variable2
... (2 Replies)
Hey, guys!
Trying to research this is such a pain since the read command itself is a common word. Try searching "unix OR linux read command examples" or using the command substitution keyword. :eek:
So, I wanted to use a command statement similar to the following.
This is kinda taken... (2 Replies)
Hello guys,
I am trying to a script that reads from key board and use the entered value in the next step.
Example: enter folder name
read $folder (i will give work)
cd /main/$folder/
pwd
it should print /main/work
---------- Post updated at 03:31 PM ----------... (1 Reply)
Hi,
I am facing issues with the below:
I have a lookup file say lookup.lkp.This lookup.lkp file contains strings delimited by comma(,).
Now i want to read this command from file and execute it.
So my code below is :
Contents in the lookup.lkp file is :
c_e,m,a,`cd $BOX | ls cef_*|tail... (7 Replies)
Is there a way to make the input of the read command (or some similar command that I'm unaware of) not visible, or with an astrix??
An example:
#!/bin/bash
# Example
echo; echo "Who are you??"; read name
if ;
then echo "Welcome, the terminal is yours."; exit
else "Stranger... (2 Replies)
Discussion started by: Huitzilopochtli
2 Replies
LEARN ABOUT DEBIAN
daptup
DAPTUP(8) System Manager's Manual DAPTUP(8)NAME
daptup - wrapper script on 'apt-get update'
SYNOPSIS
daptup [ --pre | --post | --last ] [ -h | --help ] [ --nocolor ]
OPTIONS --pre Do only 'pre' stage: collect info that will be used as 'old'. Usually need to be specified only in apt hooks.
--post If appropriate option is enabled in config file, do only 'post' stage: collect 'new' info and output changes. Otherwise do nothing.
Usually need to be specified only in apt hooks.
--last Output changes only. This option is supposed to be specified when you want to see changes made in the last update. Note that list of
outdated packages, if daptup is configured to output it, will be rebuilt.
-h --help
prints the help
--nocolor
Disables color output, useful for scripts or when output is not terminal. Now works only with --last option, however, you can dis-
able color globally in configuration file.
daptup is a script that runs "apt-get update" inside and outputs list of packages recently entered to repo, list of packages which got new
updates, list of changes in 'watched' packages and, optionally, list of outdated packages.
Starting with 0.8.0 version, daptup uses apt hooks and you don't need to explicitly call it if you use 'apt-get update'.
TROUBLESHOOTING
If daptup was interrupted while building the lists, the cached lists can stay in inconsistent state, which is inappropriate if you want to
use --last option before the new update. There is nothing to do if interrupt was occured at the moment when old lists were building
(besides running the new update). However, if interrupt was occured when the new lists were building, you can easily redo this stage by
calling 'daptup --post'.
FILES
/etc/daptup.conf
self-documented configuration file
/var/spool/daptup/outdated
cached file with info about outdated packages
SEE ALSO apt-get(8), aptitude(8), apt-show-versions(1p)AUTHOR
daptup was written by Eugene V. Lyubimkin.
This manual page was written by Eugene V. Lyubimkin <jackyf.devel@gmail.com>, for the Debian project (but may be used by others).
Oct 15, 2008 DAPTUP(8)