Sponsored Content
Top Forums Shell Programming and Scripting Help Needed in understanding this command Post 302342061 by zaxxon on Friday 7th of August 2009 10:07:55 AM
Old 08-07-2009
:a is just a label. ta says that as long as the expression is true go back to the label a and do it again.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Need Help Understanding a Unix Command

Trying to install something. Can someone explain what this means? chmod -R a+r . chmod -R a+w logo.gif tempdir/ templates_c/ I recognize that file permissions are being changed (chmod), but beyond that, it's Greek to me. (6 Replies)
Discussion started by: chris86
6 Replies

2. Shell Programming and Scripting

Needed help in understanding these procedures?

Hi all, i needed some help in understanding a few procedures and how exactly is the sequence? FINISHED="Done" COLUMNS=$( stty -a | head -n 2 | cut -d " " -f2 |cut -d " " -f4 ) COLS=$((${COLUMNS} -${#FINISHED} - 5)) RET_ARR="\010" KILLLINE=${RET_ARR}${RET_ARR} for i in $(seq 1... (0 Replies)
Discussion started by: wrapster
0 Replies

3. UNIX for Dummies Questions & Answers

Need help understanding script command

We use a UNIX-based system (Lawson) at work and I was given this command to request a data extract from the db admin. The only thing I really understand is the last line as it appears to be joining the files created from the first three lines into one. Is there anyone who can help me breakdown the... (4 Replies)
Discussion started by: KGee
4 Replies

4. Shell Programming and Scripting

understanding the sed command

Guys, I am trying to understand the sed command here. adx001 $ a=/clocal/dctrdata/user/dctrdat1/trdroot/recouncil adx001 $ b=`echo $a | sed 's/\//\\\\\//g'` adx001 $ echo $b \/clocal\/dctrdata\/user\/dctrdat1\/trdroot\/recouncil The sed command i took it from the script. Please... (3 Replies)
Discussion started by: mac4rfree
3 Replies

5. Shell Programming and Scripting

understanding the kill command

Hi Guys, I like to know if i have a process which triggers 10 different child processes. How to identify out of the 11 processes running which is the parent process and what are the child process? And if i kill the parent process will the child process be killed.. if not is there a way to... (2 Replies)
Discussion started by: mac4rfree
2 Replies

6. Shell Programming and Scripting

understanding mv command

hi i was moving a file from one directory to another with the following cmmand mv /home/hsghh/dfd/parent/file.txt . while doing so i i accidently mv /home/hsghh/dfd/dfd . although i gave ctrl c and terminate the move command some of the file are missing in the parent directory and... (1 Reply)
Discussion started by: saravanan71184
1 Replies

7. Shell Programming and Scripting

Help needed for understanding a function

There is a function called start: start() { echo -n $"Sending Startup Email: " echo "${RESTARTBODY}" | mutt -s "${RESTARTSUBJECT}" ${EMAIL} RETVAL=$? if ; then touch ${LOCKFILE} success else failure fi echo return ${RETVAL} } Can anyone explain what the bold part of the... (3 Replies)
Discussion started by: proactiveaditya
3 Replies

8. Solaris

Understanding 'du' command

Hi I have a questions related 2 commands : 'du' and 'ls'. Why is the difference between output of 'du' and 'ls' cmd's ? Command 'du' : ------------------ jakubn@server1 /home/jakubn $ du -s * 4 engine.ksh 1331 scripts 'du -s *' ---> shows block count size on disk (512 Bytes... (5 Replies)
Discussion started by: presul
5 Replies

9. UNIX for Dummies Questions & Answers

understanding sed command

Hi Friends, I need a small help in understanding the below sed command. $ cat t4.txt 1 root 1 58 0 888K 368K sleep 4:06 0.00% init 1 root 1 58 0 888K 368K sleep 4:06 0.00% init last $ sed 's/*$//' t4.txt 1 root 1 58 0 888K ... (3 Replies)
Discussion started by: forroughuse
3 Replies

10. Shell Programming and Scripting

awk : Need Help in Understanding a command

Hello I am working on a Change request and Stuck at a point. The below awk command is used in the function. float_test ( ) { echo | awk 'END { exit ( !( '"$1"')); }' } I understand that awk 'END' is used to add one line at the end and exit is used to end the script with an error... (4 Replies)
Discussion started by: rahul2662
4 Replies
IP-ADDRLABEL(8)                                                        Linux                                                       IP-ADDRLABEL(8)

NAME
ip-addrlabel - protocol address label management SYNOPSIS
ip addrlabel { COMMAND | help } ip addrlabel { add | del } prefix PREFIX [ dev DEV ] [ label NUMBER ] ip addrlabel { list | flush } DESCRIPTION
IPv6 address labels are used for address selection; they are described in RFC 3484. Precedence is managed by userspace, and only the label itself is stored in the kernel. ip addrlabel add - add an address label add an address label entry to the kernel. prefix PREFIX dev DEV the outgoing interface. label NUMBER the label for the prefix. 0xffffffff is reserved. ip addrlabel del - delete an address label delete an address label entry from the kernel. Arguments: coincide with the arguments of ip addrlabel add but the label is not required. ip addrlabel list - list address labels list the current address label entries in the kernel. ip addrlabel flush - flush address labels flush all address labels in the kernel. This does not restore any default settings. SEE ALSO
ip(8) AUTHOR
Manpage by Yoshifuji Hideaki / iproute2 20 Dec 2011 IP-ADDRLABEL(8)
All times are GMT -4. The time now is 09:02 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy