Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Struggling with mkfifo
Top Forums UNIX for Dummies Questions & Answers Struggling with mkfifo Post 50055 by alan on Thursday 15th of April 2004 04:05:41 PM
Old 04-15-2004
Quote:
Originally posted by Perderabo
What does "df -n ." and "bdf ." say?
"df -n" gives me (sorry, it's a lot of output)
/home/dev1 (cafs:/shared/homedirs/dev1) : nfs3
/users/oracle_backup (/dev/vgfc10/lvol1 ) : vxfs
/logs (/dev/vg00/lvol5 ) : vxfs
/opt (/dev/vg00/lvol6 ) : vxfs
/tmp (/dev/vg00/lvol4 ) : vxfs
/users/oracle (/dev/vgfc9/lvol1 ) : vxfs
/users/oracle_dump (/dev/vgfc8/lvol1 ) : vxfs
/users (/dev/vg00/lvol9 ) : vxfs
/usr (/dev/vg00/lvol7 ) : vxfs
/var (/dev/vg00/lvol8 ) : vxfs
/stand (/dev/vg00/lvol1 ) : hfs
/ (/dev/vg00/lvol3 ) : vxfs

"bdf" gives me (sorry, it's a lot of output too)
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol3 307200 74281 218393 25% /
/dev/vg00/lvol1 199381 43308 136134 24% /stand
/dev/vg00/lvol8 2048000 1408577 599802 70% /var
/dev/vg00/lvol7 2048000 684491 1278326 35% /usr
/dev/vg00/lvol9 4517888 2896020 1520504 66% /users
/dev/vgfc8/lvol1 226443264 195601336 30601024 86% /users/oracle_dump
/dev/vgfc9/lvol1 20951040 17467736 3428880 84% /users/oracle
/dev/vg00/lvol4 409600 39856 347349 10% /tmp
/dev/vg00/lvol6 2048000 778280 1190425 40% /opt
/dev/vg00/lvol5 1048576 16444 967669 2% /logs
/dev/vgfc10/lvol1 492306432 348862320 142323464 71% /users/oracle_backup
cafs:/shared/homedirs/dev1
427924288 153771888 252415104 38% /home/dev1

Quote:
Originally posted by Perderabo Also "cd /tmp" and repeat the mkfifo stuff.
[dev1@la]/home/dev1% cd /tmp
[dev1@la]/tmp% mkfifo bla
[dev1@la]/tmp% cat bla &
[1] 14891
[dev1@la]/tmp% echo "this is a test" > bla
this is a test
[dev1@la]/tmp% ls -l bla
prw-rw-r-- 1 dev1 cadev 0 Apr 15 19:52 bla|
[1] + Done cat bla &
[dev1@la]/tmp%

IT WORKS??!! Can you please explain why it worked in /tmp but not in my /home directory??
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

struggling with addusr ...

I'm completely new to UNIX, and having got the hang of directory navigation / creation (Just about), I think it is time to create an FTP account, so that I can upload a web site remotely. Herein lies the problem... 1: I cannot find a breakdown of addusr commands, so I cannot create a... (2 Replies)
Discussion started by: Dufty
2 Replies

2. Shell Programming and Scripting

Struggling with a text file

Hi, I am struggling with the following... I try to grep out information of a text file I got with lynx, a text browser. The text file I get from lynx with dump is attached in the bottom. What I would like to get is another file containing the astro-ph/98324 (number) and title and list of... (13 Replies)
Discussion started by: pau
13 Replies

3. UNIX for Advanced & Expert Users

Help- Unix File Compare- Struggling

I had posted this earlier about 3 weeks ago and had recieved a response and I did sort both the files and the comm command is still not working. Can someone please assist me, I would really appreciate it. Below is what I am trying to do I need to compare File A with File B and create FILE C... (2 Replies)
Discussion started by: guiguy
2 Replies

4. Shell Programming and Scripting

struggling within awk

!#/bin/bash cat input.sh | awk ' { cur1=tolower($1) cur2=tolower($2) rsh $cur1 report | grep $cur2 # i just want to make the code line to work } ' the error which i get is .... ./madh1.sh: line 1: !#/bin/bash: No such file or directory awk: cmd. line:13: rsh $cur1 report |... (4 Replies)
Discussion started by: geeko
4 Replies

5. Shell Programming and Scripting

Struggling with arrays and delimited file

Hi, I am trying to use arrays in my script but can not seem to get it to work. I have a file called sections, this contains headers from a tripwire log file, separated by "@" but could be "," if easier The headers will be used to cut sections from the log file into another to be mailed. ... (5 Replies)
Discussion started by: pobman
5 Replies

6. Shell Programming and Scripting

Struggling with AWK

I know this is an easy problem, but I've been struggling with it all morning and finally admit I need help. I have two files that I need to compare. After doing this the easy way (grep -F) I realize that there are other fields in file2 that match field1 in file1, so I turned to awk. I want to... (7 Replies)
Discussion started by: moldoverb
7 Replies

7. Programming

Help with Mkfifo and exec

Hello guys! I am doing a project for the university and I have to do that a process has to create several children through fork(). The father process sends a pathname to each one through exec and the children must send to the father a list with the files from each directory. The father is... (1 Reply)
Discussion started by: dano88
1 Replies

8. Homework & Coursework Questions

Help with Mkfifo and exec

Hello guys! I am doing a project for the university and I have to do that a process has to create several children through fork(). The father process sends a pathname to each one through exec and the children must send to the father a list with the files from each directory. The father... (1 Reply)
Discussion started by: dano88
1 Replies

9. UNIX for Dummies Questions & Answers

Struggling to combine two Greps statements

Greetings! I have been tasked to create a report off files we receive from our hardware suppliers. I need to grep these files for two fields 'Test_Version' and 'Model-Manufacturer' ; for each field, I need to capture their corresponding values. When running each statement separately, I get... (4 Replies)
Discussion started by: alan
4 Replies

10. Shell Programming and Scripting

Parsing file: struggling against sed command

Hello fellows, Sure you can help this poor guy that is struggling against sed command, being unable to tame it I have a lot of files like this: From this one, I need to obtain values highlighted in bold/red To do so, I am executing this piece of code inside a loop: ... (10 Replies)
Discussion started by: manolain
10 Replies

LEARN ABOUT V7

lvremove

LVREMOVE(8)						      System Manager's Manual						       LVREMOVE(8)

NAME

       lvremove - remove a logical volume

SYNOPSIS

       lvremove  [-A|--autobackup  {y|n}]  [-d|--debug] [-h|--help] [-t|--test] [-v|--verbose] [--version] [-f|--force] [--noudevsync] LogicalVol-
       ume{Name|Path} [LogicalVolume{Name|Path}...]

DESCRIPTION

       lvremove removes one or more logical volumes.  Confirmation will be requested before  deactivating  any	active	logical  volume  prior	to
       removal.   Logical  volumes  cannot be deactivated or removed while they are open (e.g. if they contain a mounted filesystem).  Removing an
       origin logical volume will also remove all dependent snapshots.

       If the logical volume is clustered then it must be deactivated on all nodes in the cluster before it can be removed. A single lvchange com-
       mand issued from one node can do this.

OPTIONS

       See lvm(8) for common options.

       -f, --force
	      Remove active logical volumes without confirmation.

       --noudevsync
	      Disable  udev  synchronisation. The process will not wait for notification from udev.  It will continue irrespective of any possible
	      udev processing in the background.  You should only use this if udev is not running or has rules that ignore the devices	LVM2  cre-
	      ates.

EXAMPLES

       Remove the active logical volume lvol1 in volume group vg00 without asking for confirmation:

       lvremove -f vg00/lvol1

       Remove all logical volumes in volume group vg00:

       lvremove vg00

SEE ALSO

       lvcreate(8), lvdisplay(8), lvchange(8), lvm(8), lvs(8), lvscan(8), vgremove(8)

Sistina Software UK					 LVM TOOLS 2.02.95(2) (2012-03-06)					       LVREMOVE(8)
All times are GMT -4. The time now is 09:25 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy