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Top Forums Shell Programming and Scripting Remove special characters from text file Post 302378340 by kkb on Monday 7th of December 2009 03:33:37 PM
Old 12-07-2009
Remove special characters from text file

Hi All,

i am trying to remove all special charecters().,/\~!@#%^$*&^_- and others from a tab delimited file.

I am using the following code.

Code:
while read LINE
do
echo $LINE | tr -d '=;:`"<>,./?!@#$%^&(){}[]'|tr -d "-"|tr -d "'" | tr -d "_" 
done < trial.txt > output.txt

Problem

1.The output file is not tab delimited. space is reduced. how do i correct it.
2.when I include ( -, _) in the first pattern it gives me error/weird results ( can you explain why.( let me know if you need output)

Thanks you
 

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XmTabListInsertTabs(library call)										 XmTabListInsertTabs(library call)

NAME
XmTabListInsertTabs -- A convenience function that inserts tabs into a tab list SYNOPSIS
#include <Xm/Xm.h> XmTabList XmTabListInsertTabs( XmTabList oldlist, XmTab *tabs, Cardinal tab_count, int position); DESCRIPTION
XmTabListInsertTabs creates a new tab list that includes the tabs in oldlist. This function copies specified tabs to the tab list at the given position. The first tab_count tabs of the tabs array are added to the tab list. If oldlist is NULL, XmTabListInsertTabs creates a new tab list containing only the tabs specified. oldlist Specifies the tab list to add the tabs to. The function deallocates oldlist after extracting the required information. tabs Specifies a pointer to the tabs to be added to the tab list. It is the caller's responsibility to free the tabs in tabs by using XmTabFree. tab_count Specifies the number of tabs in tabs. position Specifies the position of the first new tab in the tab list. A value of 0 (zero) makes the first new tab the first tab in the tab list, a value of 1 makes it the second tab, and so on. If position is greater than the number of tabs in oldlist, then the tabs will be inserted at the end. If position is negative, the count will be backwards from the end. A value of -1 makes the first new tab the last tab, and so on. RETURN
If tabs is NULL or tab_count is 0 (zero), this function returns oldlist. Otherwise, it returns a new tab list. The function allocates space to hold the returned tab list. The application is responsible for managing the allocated space. The application can recover the allocated space by calling XmTabListFree. RELATED
XmTabList(3) and XmTabListFree(3). XmTabListInsertTabs(library call)
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