01-22-2013
Thanks... it works.
i have another question - let's suppose i enter 41 chars, but i want first 40 chars to be read. can this be possible? please let me know.
echo "enter your name"
read name
printf "%-40s" "$name" (gives me 40 bytes) but here if i entered more than 40 chars it displays them all, but i need only first 40 chars.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I'm looking to create a Korn Shell script that, if given a directory as an arg, will calc bytes used by all files in the given directory and display that info. If no command line arg is given the program is to calc and display the bytes used by all the files in the pwd.
Example output:
... (3 Replies)
Discussion started by: kecannon
3 Replies
2. Shell Programming and Scripting
Hi all,
Does anybody know or guide me on how to remove the first N bytes and the last N bytes from a binary file? Is there any AWK or SED or any command that I can use to achieve this?
Your help is greatly appreciated!!
Best Regards,
Naveen. (1 Reply)
Discussion started by: naveendronavall
1 Replies
3. Programming
Hello, everyone.
Could someone, please, tell me how to get the number of bytes in the terminal input queue without blocking and without consuming these bytes? I guess it could be called the peek functionality.
I've looked at termio tcgetattr() and tcsetattr() functions but could not find... (4 Replies)
Discussion started by: Lucy.Garfeld
4 Replies
4. Shell Programming and Scripting
Hi All,
OS:AIX 64 bits.
Requirement is to convert file_size from bytes to megabytes through shell script as below:
export DBALIST="xyz@rediffmail.com"
ls -ltr abcd.txt > file_size.result
export file_size=`awk -F" " '{ print $5 }' file_size.result`
if ]
then
mailx -s "File abcd.txt... (3 Replies)
Discussion started by: a1_win
3 Replies
5. Shell Programming and Scripting
Hi,
i have following line in my code.
eport.pl < $4 | dos2ux | head -2000 | paste -sd\| - | awk -v S="$1" '
Issue is, i get a message saying "awk:input line | found /file/path cannot be longer than 3000 bytes."
"source line number is 3"
Can someone help me with this please? (4 Replies)
Discussion started by: usustarr
4 Replies
6. Shell Programming and Scripting
While running script I am getting an error like
Few lines in data are not being processed.
After googling it I came to know that adding such line would give some memory to it
ini_set("memory_limit","64M");
my input file size is 1 GB.
Is that memory limit is based on RAM we have on... (1 Reply)
Discussion started by: elamurugu
1 Replies
7. Shell Programming and Scripting
Hi,
on unix box, under /local/home/userid/logs folder, apps generated the following files
sw_warn.log
sw_error.log
eaijava.log
if there any application specific errors, the above file will keep growing.
if the file exceed 5000000 bytes, I would like to have a shell script which do... (6 Replies)
Discussion started by: lookinginfo
6 Replies
8. Programming
Hi,
If I want to copy a 1024 byte data stream in to the target location in 3-bytes chunk, I guess I can use the following script.
dd bs=1024 count=3 if=/src of=/dest
But, I would like to know, how to do it via a C program. I have tried this with memcpy(), that did not help. (3 Replies)
Discussion started by: royalibrahim
3 Replies
9. Shell Programming and Scripting
Guys,
I want to get the high CPU utilization from top.
I am using below code :
top -d2 >> /home/dba_monitoring/host_top_output.txt
echo "Script started `date`" > $runlog
usage=`grep "^ *$1" /home/dba_monitoring/host_top_output.txt | awk '{print $12}' | sed 's/%//'`
And getting below... (7 Replies)
Discussion started by: wahab
7 Replies
10. UNIX for Dummies Questions & Answers
Hello guys. I really hope someone will help me with this one..
So, I have to write this script who:
- creates a file home/student/vmdisk of 10 mb
- formats that file to ext3
- mounts that partition to /mnt/partition
- creates a file /mnt/partition/data. In this file, there will... (1 Reply)
Discussion started by: razolo13
1 Replies
LEARN ABOUT DEBIAN
elvfmt
ELVFMT(1) User commands ELVFMT(1)
NAME
elvfmt - adjust line-length for paragraphs of text
SYNOPSIS
elvfmt [-w width | -width] [-s] [-c] [-i chars] [-C] [-M] [file]...
VERSION
This page describes the Elvis 2.2_0 version of elvfmt. See elvis(1).
DESCRIPTION
elvfmt is a simple text formatter. It inserts or deletes newlines, as necessary, to make all lines in a paragraph be approximately the
same width. It preserves indentation and word spacing.
If you don't name any files on the command line, then elvfmt will read from stdin.
It is typically used from within vi(1) or elvis(1) to adjust the line breaks in a single paragraph. To do this, move the cursor to the top
of the paragraph, type "!}elvfmt", and hit <Return>.
OPTIONS
-w width or -width
Use a line width of width characters instead of the default of 72 characters.
-s Don't join lines shorter than the line width to fill paragraphs.
-c Try to be smarter about crown margins. Specifically, this tells elvfmt to expect the first line of each paragraph to have a differ-
ent indentation than subsequent lines. If text from the first input line is wrapped onto the second output line, then elvfmt will
scan ahead to figure out what indentation it should use for the second output line, instead of reusing the first line's indentation.
-i chars
Allow the indentation text to include any character from chars, in addition to spaces and tabs. You should quote the chars list to
protect it from the shell.
-C and -M
These are shortcuts for combinations of other flags. is short for and is useful for reformatting C/C++ comments. is short for
and is useful for reformatting email messages.
SEE ALSO
vi(1), elvis(1)
AUTHOR
Steve Kirkendall
kirkenda@cs.pdx.edu
ELVFMT(1)