Hi Folks,
I am trying to write a simple script which involves a potentially infinite loop repeating a number of tasks quickly.
I would like to enable the user to break out of this when he/she wishes (some key stroke) but not to break out of the script (i.e. which is what happens when a user... (4 Replies)
H,
I am running the following log.sh shell script.
$no_of_ps=7
while
do
echo "hello $no_of_ps"
ps_file=`tail -$no_of_ps /tmp/A380_RFS24/test.ls | head -1`
no_of_ps=`expr $no_of_ps - 1`
echo "package is: $ps_file" >> /tmp/A380_RFS24/log/A380_RFS24.log
ps_file1=`echo $ps_file| sed... (1 Reply)
Hi all, im doing this script in which i read from a logfile line by line, my problem is this:
The script was working fine until i added this statement to SSH into another machine to look for some data, it enters and retrieves the data just fine, but for some strange reason after it goes thru the... (1 Reply)
I am having trouble figuring this code
I want to grep a text from a file and if it match certain text it break out of the loop or it should continue searching for the text
Here is what I have written but it isn't working
while true
f=`grep 'END OF STATUS REPORT' filename`
do
if ... (9 Replies)
Hi gurus, I have the following part of code which I am using for treating input
#!/bin/bash
while ]; do
arg=$1; shift
case $arg in
-u)
users="$1"
shift
;;
-g)
groups="$1"
shift
;;
... (4 Replies)
notimes=5
word=excellency
the word excellency contains 10 letters. 10 letters divided by 2 = 5. which means, 5 two-groups of letters are in the word excellency.
i need to perform a function on each group of letters. but the only thing i can think of is the following, which i just know... (5 Replies)
Hi I'm comparing same files names which are in different folders .
The first for loop for the files in DAY1 folder and
the second for loop for the files in DAY2 folder .
the first IF condition is for checking whether the file names are equal
the second If condtion is for checking the... (4 Replies)
OS : RHEL 6.1
Shell : Bash
I had a similair post on this a few weeks back. But I didn't explain my requirements clearly then. Hence starting a new thread now.
I have lots of files in /tmp/stage directory as show below.
I want to loop through each files to run a command on each file.
I... (8 Replies)
I'm obviously very new to this. I'm trying to write a simple for loop that will read the directory names in /Users and then copy a file into the same subdir in each user directory.
I have this, and it works but it isn't great.
#!/bin/bash
HOMEDIRS=/Users/*
for dirs in $HOMEDIRS; do
if ];... (5 Replies)
in my python script i have loop like below:
for item in itemlist:
if <condition>:
<code>
else:
<code>
if <condition>:
if <condition>:
<code>
else:
for type in types:
if... (1 Reply)
Discussion started by: ctrld
1 Replies
LEARN ABOUT ULTRIX
break
break(1) User Commands break(1)NAME
break, continue - shell built-in functions to escape from or advance within a controlling while, for, foreach, or until loop
SYNOPSIS
sh
break [n]
continue [n]
csh
break
continue
ksh
*break [n]
*continue [n]
DESCRIPTION
sh
The break utility exits from the enclosing for or while loop, if any. If n is specified, break n levels.
The continue utility resumes the next iteration of the enclosing for or while loop. If n is specified, resume at the n-th enclosing loop.
csh
The break utility resumes execution after the end of the nearest enclosing foreach or while loop. The remaining commands on the current
line are executed. This allows multilevel breaks to be written as a list of break commands, all on one line.
The continue utility continues execution of the next iteration of the nearest enclosing while or foreach loop.
ksh
The break utility exits from the enclosed for, while, until, or select loop, if any. If n is specified, then break n levels. If n is
greater than the number of enclosing loops, the outermost enclosing loop shall be exited.
The continue utility resumes the next iteration of the enclosed for, while, until, or select loop. If n is specified then resume at the n-
th enclosed loop. If n is greater than the number of enclosing loops, the outermost enclosing loop shall be used.
On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words that follow a command preceded by ** that are in the format of a variable assignment are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign, and also that word splitting and file name genera-
tion are not performed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO csh(1), exit(1), ksh(1), sh( 1), attributes(5)SunOS 5.10 17 Jul 2002 break(1)