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Full Discussion: Replacement of exit function
Top Forums Shell Programming and Scripting Replacement of exit function Post 302584804 by jalpasoni on Monday 26th of December 2011 12:04:57 AM
Old 12-26-2011
Replacement of exit function
I am reading multiple numbers from user and getting its respective string value from the One.txt.But while putting this text value to the two.txt file , i want to check that if this string already there in the file , if the string already exists in the two.txt file .....the string will be ignored. and if the string is not exists in a two.txt file then it will be appended to the two.txt file.

For the above problem i am reading values 1,2,3 from the screen, but while getting value from one file and putting values to another file. This process continues for only 1 value, i am using exit function in the file.my code is here below.
Code:
echo "ENter Permission values seprated by commas"
read ch
#replace commas by spaces 
list=`echo $ch | tr ',' ' ' `
for val in ${list} #check till the permsiion choices entered
do
    temp=0
    command=`awk 'BEGIN {FS="|"}{print $2}' g1.txt` # get all the permssions names seprated by commas
    my=`echo $command | cut -d "," -f$val`         

    while read ln
    do
          ct=`echo $ln | cut -d "," -f1`        
          # echo $ct
        if [ $ct = $my ] ;then
            echo "permission already given" 
            temp=0            # If permission applied temp set to 0
            exit
        fi    
    done < g2.txt

    if [ temp != 0 ] ;then
        echo "$my," >>  g2.txt
        break
    fi
done

Sample Input file g1.txt
Code:
1|HideCDrive,    | : REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v NoDrives /t REG_DWORD /d 4 /f ,
2|HideRunButton, | : REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v NoClose /t REG_DWORD /d 1 /f ,
3|DisableControlPanel, | : REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v NoDispCPL /t REG_DWORD /d 1 /f ,
4|AddMycomputerIexploreandMynetworkplaceMyDocumentIcononDesktop, | : REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explore\HideDesktopIcons\NewStartPanel" /v {20D04FE0-3AEA-1069-A2D8-08002B30309D} /t REG_DWORD /d 0 /f ,

Sample output file
Code:
DisableControlPanel,
HideRunButton,
AddMycomputerIexploreandMynetworkplaceMyDocumentIcononDesktop,
Iconscolor,

Last edited by Franklin52; 12-26-2011 at 10:33 AM.. Reason: Please use code tags for data and code samples, thank you
 

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LEARN ABOUT REDHAT

mac2unix

dos2unix(1)						      General Commands Manual						       dos2unix(1)

NAME

       dos2unix - DOS/MAC to UNIX text file format converter

SYNOPSYS

       dos2unix [options] [-c convmode] [-o file ...] [-n infile outfile ...]

       Options:

       [-hkqV] [--help] [--keepdate] [--quiet] [--version]

DESCRIPTION

       This manual page documents dos2unix, the program that converts plain text files in DOS/MAC format to UNIX format.

OPTIONS

       The following options are available:

       -h --help
	      Print online help.

       -k --keepdate
	      Keep the date stamp of output file same as input file.

       -q --quiet
	      Quiet mode. Suppress all warning and messages.

       -V --version
	      Prints version information.

       -c --convmode convmode
	      Sets conversion mode. Simulates dos2unix under SunOS.

       -o --oldfile file ...
	      Old file mode. Convert the file and write output to it. The program default to run in this mode. Wildcard names may be used.

       -n --newfile infile outfile ...
	      New  file  mode.	Convert the infile and write output to outfile. File names must be given in pairs and wildcard names should NOT be
	      used or you WILL lost your files.

EXAMPLES

       Get input from stdin and write output to stdout.

	      dos2unix

       Convert and replace a.txt. Convert and replace b.txt.

	      dos2unix a.txt b.txt

	      dos2unix -o a.txt b.txt

       Convert and replace a.txt in ASCII conversion mode.  Convert and replace b.txt in ISO conversion mode.  Convert	c.txt  from  Mac  to  Unix
       ascii format.

	      dos2unix a.txt -c iso b.txt

	      dos2unix -c ascii a.txt -c iso b.txt

	      dos2unix -c mac a.txt b.txt

       Convert and replace a.txt while keeping original date stamp.

	      dos2unix -k a.txt

	      dos2unix -k -o a.txt

       Convert a.txt and write to e.txt.

	      dos2unix -n a.txt e.txt

       Convert a.txt and write to e.txt, keep date stamp of e.txt same as a.txt.

	      dos2unix -k -n a.txt e.txt

       Convert and replace a.txt. Convert b.txt and write to e.txt.

	      dos2unix a.txt -n b.txt e.txt

	      dos2unix -o a.txt -n b.txt e.txt

       Convert c.txt and write to e.txt. Convert and replace a.txt.  Convert and replace b.txt. Convert d.txt and write to f.txt.

	      dos2unix -n c.txt e.txt -o a.txt b.txt -n d.txt f.txt

DIAGNOSTICS

BUGS

       The program does not work properly under MSDOS in stdio processing mode.  If you know why is that so, please tell me.

AUTHORS

       Benjamin Lin - <blin@socs.uts.edu.au>

       Bernd Johannes Wuebben (mac2unix mode) <wuebben@kde.org>

MISCELLANY

       Tested environment:

	      Linux 1.2.0 with GNU C 2.5.8

	      SunOS 4.1.3 with GNU C 2.6.3

	      MS-DOS 6.20 with Borland C++ 4.02

       Suggestions and bug reports are welcome.

SEE ALSO

       unix2dos(1) mac2unix(1)

1995.03.31							   dos2unix v3.0						       dos2unix(1)
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