06-18-2006
Stop awk adding a new line
In a loop, I want to append some text to a file without generating a new line (and then force a new line before re-iterating the loop). In the code below the first 'echo' command is OK as it uses '--n' for no new line. For the 'awk' line I *thought* I could solve it by using printf rather than print (and not using the normal '\n').
The loop is as below:
do
echo -n $testTimeNow $'\t' >> $HOME/temp/ss.tmp
/usr/sbin/ss -i | awk -f awk_filter.tmp >> $HOME/temp/ss.tmp
# A new line now
echo "" >> $HOME/temp/ss.tmp
done
Note, awk_filter.tmp is ...
/[match]/ {printf "%s %s" \$1, \$2 }
but this isn't working. The 'awk' line in the loop *is* adding a new line in. Any and all suggestions appreciated!
9 More Discussions You Might Find Interesting
1. Programming
Hi All,
I want to find if a certain exe is running and if it is running i want to stop the execution of this exe (the exe has been created by me) on solaris.
What are the unix command i need to use and can i put these comand in a shell script or create a new exe to do this task (i would... (4 Replies)
Discussion started by: zing
4 Replies
2. Shell Programming and Scripting
FIle A
"A" 2 aa 34
3 ac
5 cd
"B" 3 hu 67
4 fg
5 gy
output shud be
A"" 2 aa 34
"A" 3 ac 34
"A" 5 cd 34
"B" 3 hu 67
"B" 4 fg 67
"B" 5 gy 67 (6 Replies)
Discussion started by: cdfd123
6 Replies
3. Shell Programming and Scripting
Hi all,
using VI, can anyone tell me how to add some characters onto the end of a line where the line begins with certain charactars eg
a,b,c,.......,
r,s,t,........,
a,b,c,.......,
all lines in the above example starting with a,b,c, I want to add an x at the end of the line so the... (6 Replies)
Discussion started by: satnamx
6 Replies
4. Programming
Here is the program I am trying to debug:
#include <stdio.h>
int i = 5;
int main(void)
{
int x = 3;
display(x);
return 0;
}
void display(int x)
{
for ( i=0; i<x; ++i ) {
printf("i is %d.\n", i);
}
}This code is coming from here Peter's gdb Tutorial: Stepping... (2 Replies)
Discussion started by: ijustneeda
2 Replies
5. Shell Programming and Scripting
Hello Everyone,
I need a help from experts of this community regarding one of the issue that I am facing with shell scripting.
My requirement is to append char's at the end of each line of a file. The char that will be appended is variable and will be passed through command line.
The... (20 Replies)
Discussion started by: Sourav Das
20 Replies
6. Shell Programming and Scripting
I started venturing in learning the art of using AWK/GAWK and wanted to simply added a period from line #11 to line #28 or to the end of the file if there is data. So for example:
11 Centos.NM
12 dojo1
13 redhat.5.5.32Bit
14 redhat.6.2.64Bit... (5 Replies)
Discussion started by: metallica1973
5 Replies
7. Shell Programming and Scripting
I'm trying to stop reading a file until the end of the file is reached or a defined delimiter line is reached. Some how I need to test the fail state of the last 2 commands, not just the last command.
echo -e "hello\ngoodbye\n####\ntesting" | while read line; ]; do echo "$line"; done
hello... (4 Replies)
Discussion started by: Michael Stora
4 Replies
8. Shell Programming and Scripting
I have a shell script that looks something like the following:
mysql -uroot db1 < db1.sql
mysql -uroot db2 < db2.sql
mysql -uroot db3 < db3.sql
mysql -uroot db4 < db4.sql
....
different db names in more than 160 lines.
I want to run this script with nohup and have a status later.
So,... (6 Replies)
Discussion started by: MKH
6 Replies
9. UNIX for Beginners Questions & Answers
Hi All,
My requirement is to add a specific line in a file after a certain line that contains 'setenv'
the existing code is like
setenv SEQFILES "/ConvWrk/inteng03/alltars/bnymais1"
LIBDEF scope='JOB' type='PGM' dataset='SUNAR.PJ90000P.JOBLIB'... (5 Replies)
Discussion started by: gotamp
5 Replies
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)