12-22-2006
Not to belabor the obvious, but the value in IFS is in IFS. You need to quote it.
echo IFS = "$IFS"
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi all,
Ok os heres my situation. I have created a database style program that stores a persons info (name,address,phone number etc.) in a file ("database"). after i read in all the values above, i assign them to a line variable:
line="$name^$address^$phonenum" >> phonebuk
as you can see... (1 Reply)
Discussion started by: djt0506
1 Replies
2. UNIX for Dummies Questions & Answers
How can I set the value for IFS variable (2 Replies)
Discussion started by: mahabunta
2 Replies
3. UNIX for Dummies Questions & Answers
Hi!
I am working in korn shell. I want to reset the dimiliter for the set command to "|" but instead of a command prompt return I am getting something as below
After issuing the command I am getting this....as if the shell is expecting something else. Can anybody suggest what's the problem.
... (2 Replies)
Discussion started by: udiptya
2 Replies
4. Shell Programming and Scripting
hi i am a learner
can some explain "export IFS=$(echo "\n\t\a")"
i am not able to understand the functionality
please help
thanks
Satya (1 Reply)
Discussion started by: Satyak
1 Replies
5. Shell Programming and Scripting
Hi,
This is out of curiosity:
I wanted to extract year, month and date from a variable, and thought that combining read and IFS would help, but this doesn't work:
echo "2010 10 12" | read y m d
I could extract the parts of the date when separated by a -, and setting IFS in a subshell:
... (3 Replies)
Discussion started by: raphinou
3 Replies
6. Shell Programming and Scripting
hi I keep getting an error with this nested if statement and am getting the error unexpected end of file, can anyone help me as to why this wont execute?
#!/bin/bash
#script to check wether the -i -v statements run correctly
removeFile ()
{
mv $1 $HOME/deleted
}... (3 Replies)
Discussion started by: somersetdan
3 Replies
7. Shell Programming and Scripting
I am using bash and resetting IFS as below when reading the command line arguments. I do this so I can call my script as in Ex1.
Ex1: ./synt2d-ray3dmod.bash --xsrc=12/20/30
This allows me to split both sides so that when I do "shift"
I can get 12/20/30
What I do not understand is... (21 Replies)
Discussion started by: kristinu
21 Replies
8. Shell Programming and Scripting
Hi ,
i am in my initial learning phase of unix. i was going thru the function part.
below is the example which was there but i am not able to understand logic and the use of IFS(internal field separator)
lspath() {
OLDIFS="$IFS"
IFS=:
for DIR in $PATH ; do echo $DIR ; done
IFS="$OLDIFS"... (8 Replies)
Discussion started by: scriptor
8 Replies
9. Shell Programming and Scripting
Hello masters of scripting,
I've been working to develop some basic monitoring scripts. I have solved one problem, but want to know how to solve the other.
I have a script that runs locally to create an output file with the Linux system kernel paramters, preceeded by the system name:
... (2 Replies)
Discussion started by: LinuxRacr
2 Replies
10. Shell Programming and Scripting
Hi,
I have created a shell script that reads line from text file and insert into DB table. I have used IFS to separate the line text. Looks IFS is splitting text properly but while passing one of the values that has special characters in it to query, it is giving weird issue. Below is my... (2 Replies)
Discussion started by: yuvi
2 Replies
LEARN ABOUT DEBIAN
envstore
ENVSTORE(1) BSD General Commands Manual ENVSTORE(1)
NAME
envstore -- save and restore environment variables
SYNOPSIS
envstore command [args ...]
DESCRIPTION
envstore can save and restore environment variables, thus transferring them between different shells.
command must be one of
clear
Forget all stored variables
eval
Produce shell code for evaluation, restoring all saved variables
list
List saved variables in better readable format
save variable [value]
Save variable either with its current shell value or with value
rm variable
Remove variable from store
Note: Only the first character of command is checked, so envstore e instead of envstore eval, envstore c for envstore clear, etc., are also
valid.
ENVIRONMENT
ENVSTORE_FILE The file in which the environment parameters are stored, /tmp/envstore-EUID by default,
LIMITATIONS
Variable names or values must not contain null bytes or newlines.
Due to limitations imposed by most shells, it is not possible to save parameters containing more than one consecutive whitespace. envstore
will save and display them correctly, but unless you do IFS trickery, your shell will not be able to load them.
The current maximum length (in bytes) is 255 bytes for the variable name and 1023 bytes for its content.
AUTHOR
envstore was written by Daniel Friesel <derf@derf.homelinux.org>.
Original idea and script by Maximilian Gass <mxey@ghosthacking.net>.
SEE ALSO
envify(1)
BSD
December 1, 2009 BSD