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UNIX for Beginners Questions & Answers
Read command
Post 302980985 by jimmyf on Monday 5th of September 2016 11:39:00 PM
09-06-2016
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1. Shell Programming and Scripting
'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)
Discussion started by: nymus7
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2. Shell Programming and Scripting
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)
Discussion started by: COD
4 Replies
3. Shell Programming and Scripting
Hi all,
What does -u option indicates in read command.
while read -u var1
do
.
.
done < file.txt (1 Reply)
Discussion started by: krishna_gnv
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4. Shell Programming and Scripting
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)
Discussion started by: avi.skynet
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5. Shell Programming and Scripting
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)
Discussion started by: djehresmann
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6. UNIX for Dummies Questions & Answers
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)
Discussion started by: Aswex
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7. UNIX for Dummies Questions & Answers
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)
Discussion started by: ProGrammar
2 Replies
8. Shell Programming and Scripting
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)
Discussion started by: sharath24
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9. Shell Programming and Scripting
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)
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10. UNIX for Beginners Questions & Answers
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
lsmboxrc
LSMBOXRC(5) File Formats Manual LSMBOXRC(5) NAME
lsmboxrc - configuration file for lsmbox DESCRIPTION
A lsmbox configuration file consists of a list of configuration options and their setting. The hash mark ("#") is used as a "comment" character. Every line beginning with a comment character is ignored. Whitespace is also ignored. COMMANDS
set variable=value Set a configuration variable to the specified value. unset variable Unset a configuration variable. This implies that the built-in default will be used instead. mailboxes filename... Specifies what mailboxes to check. You can have one or several of these lines. Each line can contain the name of one or more mail- boxes, each separated by a space. A filename of ! denotes your inbox. A leading ("=") or ("+") in a filename will be expanded into the path to your mail-directory. CONFIGURATION VARIABLES
folder The path to your mail-directory; this is usually $HOME/Mail/. lsmbox_mail_command Specifies what command to execute when the user selects a mailbox in continuous mode. mark_old Specifies whether or not old unread messages and new messages should be accounted separately. If you explicitly unset this variable using the unset command, the number of new and old messages will be added together as unread messages, otherwise they will be accounted as new and old respectively. mh_seq_unseen Specifies the string used in the .mh_sequences file to list new/old unread messages. If this variable is not set, or explicitly unset, "unseen" will be used. spoolfile The path to where the system keeps your inbox; usually /var/mail/USERNAME or /var/spool/mail/USERNAME. lsmbox_padding The width of the mailbox column. To never add additional padding beyond what's needed to align all values, specify '0' here. COMMENTS
You cannot specify a path or mailbox that contains whitespace characters (space, newline, etc.) Do not bug me about this. Having such filenames/pathnames is stupid anyway. I've deliberately tried to use the same syntax as mutt uses for its configuration-file muttrc whenever possible, to facilitate sourcing of $HOME/.lsmboxrc from your $HOME/.muttrc. lsmbox_mail_command will, however, cause mutt to emit an error. SEE ALSO
lsmbox(1), muttrc(5) HISTORY
Apr 16 2006: Updated for v2.1.0 of lsmbox. Apr 16 2004: Updated for v2.0.0 of lsmbox. Mar 13 2004: Updated for v1.9.0 of lsmbox. Jan 16 2003: Minor fixes. Jan 06 2003: Minor fixes. Dec 09 2002: Minor fixes. Nov 15 2002: Updated for v1.6.0 of lsmbox. Nov 13 2002: Add note about '+' and '='. Nov 06 2002: Minor changes. Nov 04 2002: Minor change. Oct 29 2002: Fixed a typo. Oct 28 2002: Fixed a typo. Oct 26 2002: Updated for v1.1.0 of lsmbox. Oct 26 2002: Updated for v1.0.1 of lsmbox. Oct 21 2002: Initial release. AUTHOR
lsmbox and its manual-pages are written by David Weinehall <tao@acc.umu.se> REPORTING BUGS
Report bugs to <tao@acc.umu.se>. COPYRIGHT
Copyright (C) 2002-2006 David Weinehall This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. David Weinehall Apr 16, 2006 LSMBOXRC(5)