On my system I use Escape "k" to go back in commands. I read on tutorials that it is ctrl p, but that does not work on my system.
Anyone know what the command to go foward is? (6 Replies)
Hi All,
I have done some looking at other threads but haven't found quite what I am looking for. I am a newbie to scripting and haven't got to where I want to you but here is my basic question. I have a script to copy a file and send it to another file with a date and time stamp. What I want to... (4 Replies)
I am trying to use printf with a character string that is used within a do loop. The problem is that while in the loop, the printf prints the variable name instead of the value. The do loop calls the variable name from a text file (called device.txt):
while read device
do
cat $device.clean... (2 Replies)
I'm not sure if the problem I'm seeing is an artifact of sed or simply a beginner's mistake. Here's the problem: I want to add a zero-width space following each underscore between XML tags. For example, if I had the following xml:
<MY_BIG_TAG>This_is_a_test</MY_BIG_TAG>
It should look like... (8 Replies)
I have a file like this
2011-10-10 10:46:00,1-1-13-1-1,151510,ALCLA0A84D2C
2011-10-10 10:46:00,1-1-13-1-1,151520,65537
2011-10-10 10:46:00,1-1-13-1-1,151515,46932
2011-10-10 10:46:00,1-1-13-1-1,151521,32769
2011-10-10 10:46:00,1-1-13-1-1,151522,32769
2011-10-10... (4 Replies)
How do i write a loop ping to see if it get timeout or hang ? it should loop every 30 second to ping a server ?
ping -c 5 -t 15 www.google.com
if ]; then
date '+%Y-%m-%d %H:%M:%S Connection Unavailable' >> /home/sabercats/checkconnection.log
else
date '+%Y-%m-%d %H:%M:%S Connection... (3 Replies)
How to repeat the execution of a simple command like the following for 1 sec ?
echo Hi
The completion time for the command is not known, but we need to calculate the number of times this commans executes successfully within 1 sec.
Thanks
Kumarjit (5 Replies)
Hey,
I've created following script:
var1=test1
setA=testA
if
...
touch $setA/$var1
...
fi
I would like now the repeat the command touch (in this example) for different variables.
So below, the varX should run 3 times (var1, var2, var4). Var3 is skipped in this example... (4 Replies)
Hello is it possible with awk or sed to replace any white space with the previous line characters in the same position?
I am asking this because the file I have doesn't always follow a pattern.
For example the file I have is the result of a command to obtain windows ACLs:
icacls C:\ /t... (5 Replies)
I have a csv dataset like this :
C,rs18768
G,rs13785
GA,rs1065
G,rs1801279
T,rs9274407
A,rs730012
I'm thinking of use like awk, sed to covert the dataset to this format: (if it's two character, then keep the same)
CC,rs18768
GG,rs13785
GA,rs1065
GG,rs1801279
TT,rs9274407... (7 Replies)
Discussion started by: nengcheng
7 Replies
LEARN ABOUT REDHAT
printf
PRINTF(1) FSF PRINTF(1)NAME
printf - format and print data
SYNOPSIS
printf FORMAT [ARGUMENT]...
printf OPTION
DESCRIPTION
NOTE: your shell may have its own version of printf which will supercede the version described here. Please refer to your shell's documen-
tation for details about the options it supports.
Print ARGUMENT(s) according to FORMAT.
--help display this help and exit
--version
output version information and exit
FORMAT controls the output as in C printf. Interpreted sequences are:
" double quote
NNN character with octal value NNN (0 to 3 digits)
\ backslash
a alert (BEL)
backspace
c produce no further output
f form feed
new line
carriage return
horizontal tab
v vertical tab
xNNN byte with hexadecimal value NNN (1 to 3 digits)
uNNNN character with hexadecimal value NNNN (4 digits)
UNNNNNNNN
character with hexadecimal value NNNNNNNN (8 digits)
%% a single %
%b ARGUMENT as a string with `' escapes interpreted
and all C format specifications ending with one of diouxXfeEgGcs, with ARGUMENTs converted to proper type first. Variable widths are han-
dled.
AUTHOR
Written by David MacKenzie.
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 printf is maintained as a Texinfo manual. If the info and printf programs are properly installed at your site,
the command
info printf
should give you access to the complete manual.
GNU coreutils 4.5.3 February 2003 PRINTF(1)