06-22-2011
> filename will empty contents of file
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi,
I need your help.
How can I create an empty filename with a specific size, in hp-ux?
Regards,
Mizi (2 Replies)
Discussion started by: Mizi
2 Replies
2. Shell Programming and Scripting
What is the command to empty an already existing file.
please provide me.i used Touch cmd to empty the file.but it changing the time only. (4 Replies)
Discussion started by: laknar
4 Replies
3. Shell Programming and Scripting
How do I check to make sure a file is not zero bytes?
Something like:
if
then
????? (7 Replies)
Discussion started by: lesstjm
7 Replies
4. UNIX for Dummies Questions & Answers
hi all:
my solaris FIND does not support
find myFolder -type d -empty
how can i find the empty folders?
thanks! (7 Replies)
Discussion started by: lasse
7 Replies
5. UNIX for Dummies Questions & Answers
AIX 5.3 / KSH
I have a Java application which creates a log file a.log. I have a KSH script which does the following action
cp a.log /directory2/b.log
> a.log
After this the file size goes to 0 as per "ls -l"
Then next time when the application writes into this file, the file size... (4 Replies)
Discussion started by: firdousamir
4 Replies
6. Shell Programming and Scripting
hi
how can I determine, if a file is empty or not?I am using read line clause.
The script should be like:
while read line
do
if(file is empty) then;
......
done < $blacklist (1 Reply)
Discussion started by: tjay83
1 Replies
7. UNIX for Dummies Questions & Answers
Hi All,
I am checking for a empty input file to do some further action , but I am getting exit status 0 in both the cases , for empty and non empty file both.
The value of $? is coming 0 in if part also and else part too.
#!/bin/ksh
if ]; then
echo "data"
# exit 0
echo "$?"
else... (4 Replies)
Discussion started by: mavesum
4 Replies
8. Shell Programming and Scripting
how can i use while loop ?
while file is empty do....
if not empty do .....
in bash (1 Reply)
Discussion started by: Trump
1 Replies
9. Shell Programming and Scripting
Hi there,
I'm just starting out with shell scripting and I'm trying to make a test where the script will basically run yum check-update to find out if the server has any available and if it does it e-mails me but if not it will just stop there.
I have it working if there are actually... (7 Replies)
Discussion started by: Imnewtothis
7 Replies
10. Shell Programming and Scripting
The below awk improved bu @MadeInGermany, works great as long as the input file has data in it in the below format:
input
chrX 25031028 25031925 chrX:25031028-25031925 ARX 631 18
chrX 25031028 25031925 chrX:25031028-25031925 ARX 632 14... (3 Replies)
Discussion started by: cmccabe
3 Replies
LEARN ABOUT OPENDARWIN
segedit
SEGEDIT(1) General Commands Manual SEGEDIT(1)
NAME
segedit - extract and replace sections from object files
SYNOPSIS
segedit [ option ] name ... input_file [-extract segname sectname filename] ... [[-replace segname sectname filename] ... -output out-
put_file]
DESCRIPTION
Segedit extracts and or replaces the named sections from the input_file and creates an output_file (if replacing a section). The segment
and section names are the same as specified to ld(1) with the -segcreate option. The segment and section names of an object file can be
examined with the -l option to otool(1). Only sections in segments that have no relocation to or for them can be replaced (marked with the
SG_NORELOC segment flag) but all sections can be extracted.
The options to segedit(1):
-extract segname sectname filename
Extracts the section specified by the segment name section name pair and places the contents in the specified filename.
-replace segname sectname filename
Will replace the section specified by the segment name section name pair and places and take the new contents for the section from
the specified filename. The -output filename option must also be specified. The resulting size of the section will be rounded to a
multiple of 4 bytes and padded with zero bytes if necessary.
-output output_file
Specifies the output file to create when replacing sections.
SEE ALSO
ld(1), otool(1)
LIMITATIONS
Only mach-O format files that are laid out in a contiguous address space and with their contents ordered in the order of increasing address
can have their segments replaced by this program. This layout is what the link editor produces by default.
Apple Computer, Inc. October 23, 1997 SEGEDIT(1)