Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: sed with special characters
Top Forums Shell Programming and Scripting sed with special characters Post 302304543 by itzz.me on Monday 6th of April 2009 07:01:04 PM
Old 04-06-2009
Thanks! that works

I am newbie.. still learning how to use single quotes and double quotes :-)


I still need to do another operation on the file


With the above sed operation, I get the output file as below ( GC_cycles.csv)

511725.629, 0.1122672 secs
525268.975, 0.1240036 secs
527181.835, 0.2068215 secs
527914.287, 0.2884801 secs
528457.134, 0.2548725 secs

Now, I want to convert the first field ( which is in seconds currently) to hours.

I used the following:

echo "Converting seconds to hours"
cat GC_cycles.csv | while read line
do
X=`echo "${line}" | awk -F"," '{ print $1}'` # X is the first field
X=`echo $X / 60/ 60 | bc` # Convert seconds to hours
Y=`echo "${line}" | awk -F"," '{ print $2}'` # Y is the second field
echo $X "hrs" "," $Y >> Final_GC_cycles.csv
done

Now I get the output as:

142 hrs , 0.1122672 secs
145 hrs , 0.1240036 secs
146 hrs , 0.2068215 secs
146 hrs , 0.2884801 secs
146 hrs , 0.2548725 secs



There are 2 things which I want to look at:
1) the value of X is coming in integer. How can I get it to be a floating number? with rounding to 1 decimal place.
2) Is there a more efficient way to write the above code?
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

awk/sed with special characters

i have this script that searches for a pattern. However it fails if the pattern includes some special characters. So far, it fails with the following strings: 1. -Cr 2. $Mj 3. H'412 would a sed or awk be more effective? i don't want the users to put the (\) during the search (they... (5 Replies)
Discussion started by: apalex
5 Replies

2. Shell Programming and Scripting

Changing Special Characters Using Sed

Hi. Does anyone know how to use the sed command to change the special border characters on this .per file. I have to edit about 80 .per files. I need a sed script to change the below 3 and A characters. ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿ ³ Test Islands, Office of Public Health -- WIC... (4 Replies)
Discussion started by: cstovall
4 Replies

3. Shell Programming and Scripting

sed with many special characters

I started with this: counter1=1 cp file.txt file_${counter1}.tmp while read name1 do echo $name1 counter2=`expr $counter1 + 1` sed /'${name1}'/d file_${counter1}.txt > file_${counter2}.txt counter1=`expr $counter1 + 1` done < source.txtsource.txt contains the... (1 Reply)
Discussion started by: lakanino
1 Replies

4. Shell Programming and Scripting

Using sed to replace special characters

Hi everyone I have file1 contains: '7832' ' 8765 6543 I want a sed command that will format as: '7832' , '8765' , '6543' I tried sed -e s/\'//g -e 's/^*//;s/*$//' file1 > file2 sed -e :a -e '$!N; s/\n/ /; ta' file2 which gives: 7832 8765 6543 I need some help to continue with... (5 Replies)
Discussion started by: nimo
5 Replies

5. Shell Programming and Scripting

SED with Special characters

Hello All Seeking the right one SED command. My attempt is: From orginal.txt by SED to target.txt sed -i "/('outbound-callerid/a\$ext->add($context, $exten, '', new ext_SipAddHeader('P-Preferred-Identity', '<sip:${CALLERID(nummer)}@carrier.com>'));" orginal.txtWhat am make wrong?:wall: ... (5 Replies)
Discussion started by: mdbinder
5 Replies

6. Shell Programming and Scripting

Escape special characters in SED

Need help in escaping special characters in sed command. Here is the the string which i am trying to find a replace with From :- REQUEST_TYPE=PIXEL&amp;MSG_ID={//MESSAGE_ID} To :- REQUEST_TYPE=PIXEL&amp;MSG_ID= X_EDELIVERY_MESSAGE_ID &amp; BATCH_ID= X_EDELIVERY_BATCH_ID Here is the sed command i am... (2 Replies)
Discussion started by: aakishore
2 Replies

7. Shell Programming and Scripting

sed special characters issue

Hi I'm trying to replace string1 by string2 in file homepage.htm as follows but is not working. Please Help: sedsed -i "s@'://your server name:port/test/owa'@'://11.22.33.44:5555/pls/SAMPLE'@g" homepage.htm Where, String1 ://your server name:port/test/owa String2... (3 Replies)
Discussion started by: koazter
3 Replies

8. Shell Programming and Scripting

Sed - remove special characters

Hi, I have a file with this line, it's always in the first line: I want to remove these special characters: ´╗┐ file1 ´╗┐\\bar\c$\test2\;3.348.118 Bytes;160 ;3 \\bar\c$\test\;35 Bytes;2 ;1 I want the same file to be only \\bar\c$\test2\;3.348.118 Bytes;160 ;3 \\bar\c$\test\;35... (4 Replies)
Discussion started by: nakaedu
4 Replies

9. Shell Programming and Scripting

sed special characters issues

I am dusting off the sed cobwebs and had a basic question: I have a file that contains: $firewall = "on"; $cache = "on"; $dataset{'mary had a little lamb'} = "on"; and want to only change the contents of what is between the single quotes: $dataset{'big bad wolf'} = "on"; I... (3 Replies)
Discussion started by: metallica1973
3 Replies

10. Shell Programming and Scripting

sed in a while loop with special characters

I have the foolowing data file: File1 <p name="A">5004</p> <p name="B">5004</p> <p name="C">5004</p> <p name="A">15004</p> <p name="B">15004</p> <p name="C">15004</p> In a while loop using sed (100 of line need to be replace), I need the output to File3:... (2 Replies)
Discussion started by: bobo
2 Replies

LEARN ABOUT SUNOS

volcheck

volcheck(1)							   User Commands						       volcheck(1)

NAME

       volcheck - checks for media in a drive and by default checks all floppy media

SYNOPSIS

       volcheck [-v] [-i secs] [-t secs] pathname

DESCRIPTION

       The  volcheck  utility tells Volume Management to look at each dev/pathname in sequence and determine if new media has been inserted in the
       drive.

       The default action is to volcheck all checkable media managed by volume management.

OPTIONS

       The following options are supported:

       -i secs	Set the frequency of device checking to secs seconds.  The default is 2 seconds.  The minimum frequency is 1 second.

       -t secs	Check the named device(s) for the next secs seconds.  The maximum number of seconds allowed is 28800, which is 8 hours.  The  fre-
		quency of checking is specified by -i. There is no default total time.

       -v	Verbose.

OPERANDS

       The following operands are supported:

       pathname        The path name of a media device.

EXAMPLES

       Example 1: A sample of the volcheck command.

       The following example

	       example% volcheck -v /dev/diskette
	       /dev/diskette has media

       asks Volume Management to examine the floppy drive for new media.

       The following example

	       example% volcheck -i 2 -t 600 /dev/diskette1 &

       asks Volume Management if there is a floppy in the floppy drive every 2 seconds for 600 seconds (10 minutes).

FILES

       /dev/volctl     Volume Management control port

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWvolu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       eject(1), volcancel(1), volmissing(1) rmmount(1M), vold(1M), rmmount.conf(4), vold.conf(4), attributes(5), volfs(7FS)

WARNINGS

       Due  to a hardware limitation in many floppy drives, the act of checking for media causes mechanical action in the floppy drive.   Continu-
       ous polling of the floppy drive will cause the drive to wear out. It is recommended that polling the drive only be performed during periods
       of high use.

SunOS 5.10							    21 Feb 1997 						       volcheck(1)
All times are GMT -4. The time now is 06:45 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy