Your original script does nothing because the "while" condition happens immediately. Suggest you have a "sleep" command in the script or you will kill your network.
I try to test the carriage return in a variable.
$ LENGTH=`expr $VARIABLE : ".*"` will return the length of the variable. But this doesn't work if $VARIABLE has zero length.
Any help will be well appreciated.
Thanks in advance.
Giovanni (4 Replies)
I have observed with print & echo, they produce carriage return <CR> or newline, after they display string next to them.
Is there anyway to avoide these <CR> after the intended string is displayed? (3 Replies)
I have a file that I have to place a carriage return at the end of each line for another program to process it. I also need to remove all spaces after the carriage return. I searched the forums and found this command, but it removes all spaces:
sed "s/*//g" ic527.txt > ic527.new
The... (9 Replies)
hi ALL,
bash-3.00$ echo $BASH_VERSION
3.00.16(1)-release
I'm stumped on a bug. Im extracting a checksum value at the end of a file and storing it in a variable, the problem is that it is also somehow storing the carriage return in the string as show below:
The variables below both... (4 Replies)
Hi all,
need your help in replacing carriage return in a record.
Input:
col1|col2|col3|col4|col5|col6|col7|col8|col9|col10
1|aa|bb|cc|dd|eee
eee|ff|ggggg|hh
hhh|iii
2|zz|yy|xx|ww|vv|uu|tt|ss|rr
Output:
col1|col2|col3|col4|col5|col6|col7|col8|col9|col10... (12 Replies)
Hey folks,
I've been working on this for some time. Seems simple, but I'm stumped.
I need the following data format:
New_York:Commercial
Geology
Geophysics
Petrophysics
Production_Engineering
Reservoir_Engineering
Pasadena:Commercial
... (5 Replies)
Hello all,
I've a flat file in the following format:
AB\001\CDED\001\ABC\001\nEG\001\HIJF\001\EFG\001\nHI\003\HIUL\003\HIJ\003
And I want to substitute \n with the carriage return. Any help is appreciated!
Regards,
- Seth (8 Replies)
Hi.
I need to make multiple string replacements in a file but several of the strings have been broken up by a carriage return so that the first few characters are on one line and the remainder on the following line.
E.g like the word 'post' in the following:
Use descriptive thread... (3 Replies)
I need to remove the carriage return comes inbetween the record.
Need to have CR only at the end.
I used the below command.
tr -d '\n' < filewithcarriagereturns > filewithoutcarriagereturns
But its removing all the CR and giving one line output.
Input File:
12345
abcdegh... (11 Replies)
Discussion started by: srvn_saru
11 Replies
LEARN ABOUT NETBSD
sleep
SLEEP(1) BSD General Commands Manual SLEEP(1)NAME
sleep -- suspend execution for an interval of time
SYNOPSIS
sleep seconds
DESCRIPTION
The sleep utility suspends execution for a minimum of seconds. It is usually used to schedule the execution of other commands (see EXAMPLES
below).
Note: The NetBSD sleep command will accept and honor a non-integer number of specified seconds. This is a non-portable extension, and its
use will nearly guarantee that a shell script will not execute properly on another system.
When the SIGINFO signal is received, the estimate of the amount of seconds left to sleep is printed on the standard output.
EXIT STATUS
The sleep utility exits with one of the following values:
0 On successful completion, or if the signal SIGALRM was received.
>0 An error occurred.
EXAMPLES
To schedule the execution of a command for 1800 seconds later:
(sleep 1800; sh command_file >& errors)&
This incantation would wait half an hour before running the script command_file. (See the at(1) utility.)
To reiteratively run a command (with csh(1)):
while (1)
if (! -r zzz.rawdata) then
sleep 300
else
foreach i (*.rawdata)
sleep 70
awk -f collapse_data $i >> results
end
break
endif
end
The scenario for a script such as this might be: a program currently running is taking longer than expected to process a series of files, and
it would be nice to have another program start processing the files created by the first program as soon as it is finished (when zzz.rawdata
is created). The script checks every five minutes for the file zzz.rawdata, when the file is found, then another portion processing is done
courteously by sleeping for 70 seconds in between each awk job.
SEE ALSO at(1), nanosleep(2), sleep(3)STANDARDS
The sleep command is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
BSD August 13, 2011 BSD