10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I am using the below code for printing the column position of a particular string
nawk -v srch="DName" -F '\t' '{for(j=1; j<=NF; j++) { if($j==srch) print j } exit }' input_file.txt
The above code prints the column position of the input string DName (that is 1)
Now the problem is,... (7 Replies)
Discussion started by: sampoorna
7 Replies
2. Shell Programming and Scripting
I have write a script which contains
ssh -p 12345 dcplatform@10.125.42.50
ssh 127.0.0.1 -p 5555 "$CMD"
ssh root@$GUEST_IP "$CMD"
before I use public key, it works well, now I want to change to "expect", BUT I don't want to change above code and "parameter position"
I can post a... (1 Reply)
Discussion started by: yanglei_fage
1 Replies
3. UNIX for Dummies Questions & Answers
Hi,
I have a string like the following:
/db1/data/GLIDER/SYSTEM.dbf
need to find the postion where "SYSTEM.dbf" starts, so I tried:
LOCATION=/db1/data/GLIDER/SYSTEM.dbf
$ expr index $LOCATION SYSTEM
expr: syntax error
$ expr index "$LOCATION" SYSTEM
expr: syntax error
... (5 Replies)
Discussion started by: seafan
5 Replies
4. Shell Programming and Scripting
Hi Friends thanks a lot....for ur replies its worked fine...i have one more question..
if i need to remove trailor (T000000004 ) as shown below file also with header.Plz help thanks
Source file:
H20100928
D04041201609360677PC790010384I
D04041203326357853PC790010645R ... (1 Reply)
Discussion started by: dprakash
1 Replies
5. UNIX for Dummies Questions & Answers
Hi
I have a input file :::
1583904589034853904
1690234849023849023
159823890238409
1690238490238490238490
.
.
.
The output file should have the record 16 appended to the record 15 and a variable should be added at a FIXED POSTION at 55.
The records are been processed inside a loop... (3 Replies)
Discussion started by: akashhello
3 Replies
6. Shell Programming and Scripting
I have a file like this..
Maharastra Mumbai worli
Maharastra Mumbai navy
maharatra Pune
Maharastra Nagpur
Karnataka Bangalore
Karnataka Mysore
Karnataka Mangalore
Punjab Amritsar
punjab Jalandar
my expected outcome should be like this
Maharastra Mumbai worli
---------- ... (9 Replies)
Discussion started by: geeko
9 Replies
7. Shell Programming and Scripting
In VI editor ctrl + g is used indicate the line number on which the cursor is placed...similarly is there a way to determine the column number of the cursor position..? (1 Reply)
Discussion started by: vijay_0209
1 Replies
8. Shell Programming and Scripting
Hi there,
I have progress bars in several of my scripts, they work by deleting what has already been writen out, using:
clear = "\\010"*( length of string i want to delete )
clearCmd = "echo -ne \""+clear+"\""
os.system(clearCmd)
I then re-write the percent done & the progress... (4 Replies)
Discussion started by: purest
4 Replies
9. UNIX for Dummies Questions & Answers
All,
I need to grep for a value between particular positions:
Eg:
ACME CORPORATION 3 213.89
I need to look out for the value 3 betwen postions 20 and 26.
Any ideas.
Thanks
KP. (3 Replies)
Discussion started by: kingofprussia
3 Replies
10. UNIX for Dummies Questions & Answers
Hi there,
Is there a way to position the cursor at EOF in vi, I know from the man pages how to position the cursor at the end of a paragraph, but what about the EOF (End Of File).
Regards (6 Replies)
Discussion started by: JimJim
6 Replies
DIO_SEEK(3) 1 DIO_SEEK(3)
dio_seek - Seeks to pos on fd from whence
SYNOPSIS
int dio_seek (resource $fd, int $pos, [int $whence = SEEK_SET])
DESCRIPTION
The function dio_seek(3) is used to change the file position of the given file descriptor.
PARAMETERS
o $fd
- The file descriptor returned by dio_open(3).
o $pos
- The new position.
o $whence
- Specifies how the position $pos should be interpreted:
o SEEK_SET (default) - specifies that $pos is specified from the beginning of the file.
o SEEK_CUR - Specifies that $pos is a count of characters from the current file position. This count may be positive or nega-
tive.
o SEEK_END - Specifies that $pos is a count of characters from the end of the file. A negative count specifies a position
within the current extent of the file; a positive count specifies a position past the current end. If you set the position
past the current end, and actually write data, you will extend the file with zeros up to that position.
RETURN VALUES
EXAMPLES
Example #1
Positioning in a file
<?php
$fd = dio_open('/dev/ttyS0', O_RDWR);
dio_seek($fd, 10, SEEK_SET);
// position is now at 10 characters from the start of the file
dio_seek($fd, -2, SEEK_CUR);
// position is now at 8 characters from the start of the file
dio_seek($fd, -5, SEEK_END);
// position is now at 5 characters from the end of the file
dio_seek($fd, 10, SEEK_END);
// position is now at 10 characters past the end of the file.
// The 10 characters between the end of the file and the current
// position are filled with zeros.
dio_close($fd);
?>
PHP Documentation Group DIO_SEEK(3)