I guess I just figured out what you mean with infinite loop, because I also tested it in a loop - with the sample data (csv file with just 3 lines) - not just manually on the command line and indeed it looked like a infinite loop and I was just like , but then I realized the csv is parsed 13 times (13 items in the array).
Here you can clearly see how 61406775 is matched in the 7th round.
Note that the sed command is much faster with the -i option or even redirection into another file because the output is not printed to the (slow) stdout.
Can you post your current script?
---------- Post updated at 10:58 PM ---------- Previous update was at 10:54 PM ----------
I'd be happy if some "senior" person could confirm my assumption though.
Well, I'm losing my regex ability in sed! Please help.
I need to search for this text in multiple html files in a directory:
</body>
and add the following lines in front of the text above:
<script src="http://www.google-analytics.com/urchin.js" type="text/javascript">
</script>
... (11 Replies)
Hello,
i have a file like that
foo A new
bar A new
bar B new
I need to replace 'new' with 'done',
but only in lines containing 'bar' AND 'A'.
output file should then become
foo A new
bar A done
bar B new
Sorry im not able to figure it out, not even shure if i should take sed.... (10 Replies)
Hello,
I really would appreciate some help with a bash script for some string manipulation on an SQL dump:
I'd like to be able to rename "sites/WHATEVER/files" to "sites/SOMETHINGELSE/files" within the sql dump.
This is quite easy with sed:
sed -e... (1 Reply)
Hi guys,
got a problem here with sed on the command line.
If i have a string as below:
online xx:wer:xcv: sdf:/asdf/http:https-asdfd
How can i match the pattern "http:" and replace the start of the string to the pattern with null?
I tried the following but it doesn't work:
... (3 Replies)
I have several files that I need to modify using sed. I know how to do that, but now a new requirement has come up.
Now, I need to make changes to all lines that don't start with certain strings. For example, I need to change all lines except for lines that start with "a", "hello there",... (3 Replies)
Need help with either sed or awk to acheive the following
file1
-----
In the amazon forest
The bats eat all the time...
mon tue wed they would eat berries
In the tropical forest
The bats eat all the time...
on wed bats eat nuts
In the rain forest
The bats eat all the time...
on... (2 Replies)
I have a file
DS1
DDS
DS
I want to replace only "DS" to "DSmail.blah.com" in a lot of files. I tried
sed 's/DS/DSmail.blah.com' but it changes all the lines .
thanks in advance (2 Replies)
Hi All,
I need help in manipulating the data in first column in a file.
The sample data looks like below,
Mon Jul 18 00:32:52 EDT 2011,NULL,UAT
Jul 19 2011,NULL,UAT
1] All field in the file are separated by ","
2] File is having weekly data extracted from database
3] For eg.... (8 Replies)
Hi ,
I have one file and in this file i have one like
TEST1 KEY0=AAC040R1;AAC041R1ISE;AAC041R2ISE;AAC370R1;ADR0500;ADR0600;AME245R1;AME245R2;BAP0135;BAP0300;PPINVDTD*;PPJERPTD*;PPJERPT*;PRBSUMM*;:
i want to replace this line with the following line
TEST1... (4 Replies)
All, I appreciate any help you can offer here as this is well beyond my grasp of awk/sed...
I have an input file similar to:
&LOG
&LOG Part: "@DB/TC10000021855/--F"
&LOG
&LOG
&LOG Part: "@DB/TC10000021852/--F"
&LOG Cloning_Action: RETAIN
&LOG Part: "@DB/TCCP000010713/--A"
&LOG
&LOG... (5 Replies)
Discussion started by: KarmaPoliceT2
5 Replies
LEARN ABOUT OSX
while
while(n) Tcl Built-In Commands while(n)
__________________________________________________________________________________________________________________________________________________NAME
while - Execute script repeatedly as long as a condition is met
SYNOPSIS
while test body
_________________________________________________________________DESCRIPTION
The while command evaluates test as an expression (in the same way that expr evaluates its argument). The value of the expression must a
proper boolean value; if it is a true value then body is executed by passing it to the Tcl interpreter. Once body has been executed then
test is evaluated again, and the process repeats until eventually test evaluates to a false boolean value. Continue commands may be exe-
cuted inside body to terminate the current iteration of the loop, and break commands may be executed inside body to cause immediate termi-
nation of the while command. The while command always returns an empty string.
Note: test should almost always be enclosed in braces. If not, variable substitutions will be made before the while command starts execut-
ing, which means that variable changes made by the loop body will not be considered in the expression. This is likely to result in an
infinite loop. If test is enclosed in braces, variable substitutions are delayed until the expression is evaluated (before each loop iter-
ation), so changes in the variables will be visible. For an example, try the following script with and without the braces around $x<10:
set x 0
while {$x<10} {
puts "x is $x"
incr x
}
EXAMPLE
Read lines from a channel until we get to the end of the stream, and print them out with a line-number prepended:
set lineCount 0
while {[gets $chan line] >= 0} {
puts "[incr lineCount]: $line"
}
SEE ALSO
break(n), continue(n), for(n), foreach(n)
KEYWORDS
boolean value, loop, test, while
Tcl while(n)