thank you very much, I'm searching the forums for a beginners guide, so I have a cheat sheet for syntax, i.e. when to put [ xyz ] and what (( xyz )) means so I won't have to bug folks too terribly much
---------- Post updated at 08:21 PM ---------- Previous update was at 08:05 PM ----------
Another one I can't decipher..
Last edited by DukeNuke2; 05-08-2011 at 05:43 AM..
I'm getting the following errors when I try to write a script to unzip some zip files. When I use the free trial copy of the commerical winzip program, however, they work fine. When I use -l or -t on unzip it indicates no errors. When I use the -o switch interactively from the bash command line it... (1 Reply)
Hi,
I use AIX (ksh) and Linux (bash) servers. I'm trying to do scripts to will run in both ksh and bash, and most of the time it works. But this time I don't get it in bash (I'm more familar in ksh).
The goal of my script if to read a "config file" (like "ini" file), and make various report.... (2 Replies)
I want to write a bash script to:
1. Send an email from localhost to an external gmail account. (gmail then automatically forwards the message back to a pop account on the same server.
2. Script waits 3 minutes then checks to see if the email arrived, and if not, it sends an email to... (9 Replies)
Im trying to write a script using the host command but its not working properly. I cant understand what Im doing wrong. When I use it at the command prompt, it works fine. But its being used actually in the script, it says its not found: 2 SERVFAIL. Can anyone help me? Here's what I have so far: no... (6 Replies)
Hi,
I need to automate some repacking tasks of a boot image for Android
When in command line, I can use this command:
mkbootfs /path/to/root > /path/to/ramdisk-recovery.cpio;However, if I try to run the command from a shell script under Ubuntu, it fails and outputs to stdout instead of the... (27 Replies)
Hello,
I want to write a bash script to delete the content after '#'. However, if '#' appears in a string with "", ignore this. For example,
input file:
test #delete
"test #not delete"
Output file:
test
"test #not delete"
Does anyone know how to write this script?
Thanks (1 Reply)
Hi,
I have a bash script to run many system commands on CentOS machine, but I am puzzled by some commands had no effect on parent environment.
For example, I want to refresh the desktop xdg menu when some processes added or deleted items from desktop xdg menu. If I run "killall gnome-panel"... (4 Replies)
Hi,
I wanted to load data from HDFS to HIVE by writing bash script.
Description:
I have written a bash script to validate the data and loaded validated data from local file system to HDFS. Now in the same bash script i wanted to load the data from HDFS to HIVE. How can i do it ? Also how tyhe... (2 Replies)
Hi,
I have a script file where i'm validatig the input file and storing the validated records on HDFS.
I wanted to load data from HDFS to HBASE using pig script. So for that i have created a HBASE table and written pig script to load data from HDFS to HBASE which is working fine. Now i wanted... (0 Replies)
Discussion started by: shree11
0 Replies
LEARN ABOUT REDHAT
od
OD(1) FSF OD(1)NAME
od - dump files in octal and other formats
SYNOPSIS
od [OPTION]... [FILE]...
od --traditional [FILE] [[+]OFFSET [[+]LABEL]]
DESCRIPTION
Write an unambiguous representation, octal bytes by default, of FILE to standard output. With more than one FILE argument, concatenate
them in the listed order to form the input. With no FILE, or when FILE is -, read standard input.
All arguments to long options are mandatory for short options.
-A, --address-radix=RADIX
decide how file offsets are printed
-j, --skip-bytes=BYTES
skip BYTES input bytes first
-N, --read-bytes=BYTES
limit dump to BYTES input bytes
-s, --strings[=BYTES]
output strings of at least BYTES graphic chars
-t, --format=TYPE
select output format or formats
-v, --output-duplicates
do not use * to mark line suppression
-w, --width[=BYTES]
output BYTES bytes per output line
--traditional
accept arguments in traditional form
--help display this help and exit
--version
output version information and exit
Traditional format specifications may be intermixed; they accumulate:
-a same as -t a, select named characters
-b same as -t oC, select octal bytes
-c same as -t c, select ASCII characters or backslash escapes
-d same as -t u2, select unsigned decimal shorts
-f same as -t fF, select floats
-h same as -t x2, select hexadecimal shorts
-i same as -t d2, select decimal shorts
-l same as -t d4, select decimal longs
-o same as -t o2, select octal shorts
-x same as -t x2, select hexadecimal shorts
For older syntax (second call format), OFFSET means -j OFFSET. LABEL is the pseudo-address at first byte printed, incremented when dump is
progressing. For OFFSET and LABEL, a 0x or 0X prefix indicates hexadecimal, suffixes may be . for octal and b for multiply by 512.
TYPE is made up of one or more of these specifications:
a named character
c ASCII character or backslash escape
d[SIZE]
signed decimal, SIZE bytes per integer
f[SIZE]
floating point, SIZE bytes per integer
o[SIZE]
octal, SIZE bytes per integer
u[SIZE]
unsigned decimal, SIZE bytes per integer
x[SIZE]
hexadecimal, SIZE bytes per integer
SIZE is a number. For TYPE in doux, SIZE may also be C for sizeof(char), S for sizeof(short), I for sizeof(int) or L for sizeof(long). If
TYPE is f, SIZE may also be F for sizeof(float), D for sizeof(double) or L for sizeof(long double).
RADIX is d for decimal, o for octal, x for hexadecimal or n for none. BYTES is hexadecimal with 0x or 0X prefix, it is multiplied by 512
with b suffix, by 1024 with k and by 1048576 with m. Adding a z suffix to any type adds a display of printable characters to the end of
each line of output. --string without a number implies 3. --width without a number implies 32. By default, od uses -A o -t d2 -w 16.
AUTHOR
Written by Jim Meyering.
REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>.
COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
SEE ALSO
The full documentation for od is maintained as a Texinfo manual. If the info and od programs are properly installed at your site, the com-
mand
info od
should give you access to the complete manual.
od (coreutils) 4.5.3 February 2003 OD(1)