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Full Discussion: to remove space after numeric
Top Forums Shell Programming and Scripting to remove space after numeric Post 302237134 by ali560045 on Wednesday 17th of September 2008 04:33:29 AM
Old 09-17-2008
to remove space after numeric
I have a script that shows me the disk SPace used by different dir under my home dir:

Code:
#!/bin/ksh
cd /ednpdtu3/u01/pipe

p1=`df -g | tail -1 | tr -s " " | cut -d " " -f2`
echo "Total Disk Space of Home Dir is $p1 GB"
p2=`df -g | tail -1 | tr -s " " | cut -d " " -f3`
echo "Total Disk Space Free in Home Dir is $p2 GB"

count=`ls -ltr | grep ^d | wc -l`
echo "$count Dir found in HOME DIR"

a1=1
while [ $a1 -le $count ]
do
  b=`ls -ltr | grep ^d | head -$a1 | tail -1 | tr -s " " | cut -d " " -f9`
  #echo $b
  a1=`expr $a1 + 1`
  a2=`du -sk $b`
  echo "$a2" 
done

------------------------------------------------------------------------

Output i m getting:
28 ssh

89508 Outgoing

6393868 Incoming

4 Mail

----------------------------------------------------------

But i want to get only numeric value i.e. whenever it encounter space , it should remove spaces and watever is after spaces so that i can get onl;y numeric part. My o/p should be like below

28

89508

6393868

4
--------------------------------------------------------------

I know we can do it by SED and we have to implement this in a2=`du -sk $b` . I tried some commands with sed
,but not successfull

a2=`du -sk $b | `sed 's/ //g'-----> not working

I m pretty much sure we have to implement the logic in that part of the script i.e. a2=`du -sk $b` and using SED but not getting the correct way to use SED

Plz help me in this
Last edited by Franklin52; 09-17-2008 at 06:13 AM.. Reason: adding code tags
 

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LEARN ABOUT LINUX

shtool-mkshadow

SHTOOL-MKSHADOW.TMP(1)					      GNU Portable Shell Tool					    SHTOOL-MKSHADOW.TMP(1)

NAME

       shtool-mkshadow - GNU shtool create shadow tree using symlinks

SYNOPSIS

       shtool mkshadow [-v|--verbose] [-t|--trace] [-a|--all] src-dir dst-dir

DESCRIPTION

       This command creates a shadow tree of src-dir under dst-dir by recreating the directory hierarchy of src-dir under dst-dir and by creating
       the files of src-dir by linking them into the corresponding directories under dst-dir via symbolic links. When src-dir can be reached via
       relative paths from dst-dir, relative symbolic links are used, too. This high-level functionality is originally designed for developers to
       create copies of source trees.

OPTIONS

       The following command line options are available.

       -v, --verbose
	   Display some processing information.

       -t, --trace
	   Enable the output of the essential shell commands which are executed.

       -a, --all
	   Really shadow all files and directories in src-dir. Default is to skip CVS related files and directories, backup files, object files,
	   etc.

EXAMPLE

	#   shell script
	shtool mkshadow -v -a . /tmp/shadow

HISTORY

       The GNU shtool mkshadow command was originally written by Ralf S.  Engelschall <rse@engelschall.com> in 1998 for Apache. It was later
       revised and taken over into GNU shtool.

SEE ALSO

       shtool(1), ln(1).

18-Jul-2008							   shtool 2.0.8 					    SHTOOL-MKSHADOW.TMP(1)
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