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Full Discussion: check for not null string in file
Top Forums Shell Programming and Scripting check for not null string in file Post 302093747 by justsam on Monday 23rd of October 2006 07:46:38 AM
Old 10-23-2006
#!/bin/sh
i=1
cat file1 | while read line
do
str1=`echo $line | cut -c5-10 `
if [ -z "$str1" ]
then
echo "Line No. $i -- No String in position 5-10 "
else
echo "Line No. $i -- String in position 5-10 : $str1"
fi
i=`expr $i + 1`
done

Output:

$ ./test.sh
Line No. 1 -- No String in position 5-10
Line No. 2 -- String in position 5-10 : 12345a
Line No. 3 -- String in position 5-10 : 12345a
Line No. 4 -- No String in position 5-10
Line No. 5 -- No String in position 5-10
Line No. 6 -- String in position 5-10 : 12345a
Line No. 7 -- No String in position 5-10
Line No. 8 -- No String in position 5-10
Line No. 9 -- No String in position 5-10


$ cat file1
aaaa
absd12345asaa
defg12345asd
asas
asas
aeas12345asdd
asas


$
Note: Line 9 and 10 does not have any data in the above file
justsam
 

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LEARN ABOUT HPUX

xmtextfieldinsert

XmTextFieldInsert(library call) 										   XmTextFieldInsert(library call)

NAME

       XmTextFieldInsert -- A TextField function that inserts a character string into a text string

SYNOPSIS

       #include <Xm/TextF.h>
       void XmTextFieldInsert(
       Widget widget,
       XmTextPosition position,
       char * value);

DESCRIPTION

       XmTextFieldInsert  inserts  a  character string into the text string in the TextField widget. The character positions begin at 0 (zero) and
       are numbered sequentially from the beginning of the text. For example, to insert a string after the fourth character, the position  parame-
       ter must be 4.

       This  routine calls the widget's XmNvalueChangedCallback and verification callbacks, either XmNmodifyVerifyCallback or XmNmodifyVerifyCall-
       backWcs, or both. If both verification callback lists are registered, the procedures of the XmNmodifyVerifyCallback list are executed first
       and  the resulting data is passed to the XmNmodifyVerifyCallbackWcs callbacks.  If the XmNcursorPosition resource is greater than or is the
       same value as position, the XmNmotionVerifyCallback is called.

       widget	 Specifies the TextField widget ID

       position  Specifies the position in the text string where the character string is to be inserted

       value	 Specifies the character string value to be added to the text widget

       For a complete definition of TextField and its associated resources, see XmTextField(3).

RELATED

       XmTextField(3) and XmTextFieldInsertWcs(3).

														   XmTextFieldInsert(library call)
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