01-30-2015
Quote:
Originally Posted by
Corona688
Is this homework?
lol... Not at all...
I was working on some data to display content..
couldn't figure out the right way...
10 More Discussions You Might Find Interesting
1. AIX
Hi! I'm currently using AIX 4.3 and would like to know where can i find to see that there's a restriction on the number of login times a user can have. Example, I want to see whether user A has only 1 login while user B can have 2 logins (without logging off the first one).
Would I be able to... (7 Replies)
Discussion started by: ftengcheng
7 Replies
2. Shell Programming and Scripting
I have one file of numbers
4
5
2
...
And another file of strings
aaaaa bbbbb
ccccc ddddd
eeeee ffffff
...
I'd like to print the stings from each line in reverse order with some decoration the number of times listed in the first file
such as:
Yeah bbbbb aaaaa
Yeah bbbbb aaaaa (5 Replies)
Discussion started by: dcfargo
5 Replies
3. Shell Programming and Scripting
Is there any way to print all the string till we get a space and a number and store it a variable
for eg we have string java.io.IOException: An existing connection was forcibly closed by the remote host 12
All I want is to store "java.io.IOException: An existing connection was forcibly closed... (13 Replies)
Discussion started by: villain41
13 Replies
4. Shell Programming and Scripting
Hi ,
I have file, which has the below content:
line 100
a
b
c
d
line300
a
s
d
f
s
line200
a
s
d
a (3 Replies)
Discussion started by: little_wonder
3 Replies
5. Shell Programming and Scripting
Hi All,
I wanted to know if there is a shell command to print a word n number of times
The Input File is :
Cat 4
Bat 3
Zall 1
Kite 2
Output File required is :
Cat
Cat
Cat
Cat
Bat
Bat
Bat
Zall
Kite (4 Replies)
Discussion started by: sam_2921
4 Replies
6. Programming
I'm trying find and print a number after a specific user passed string in each line of a text file using C (as requested by the powers that be). I've pieced together enough to read the file, find the string and print the line it was found on but I’m not sure where to even start in terms of finding... (3 Replies)
Discussion started by: cgol
3 Replies
7. Shell Programming and Scripting
Hi
I have requirement to find nth occurrence in a file and capture data from with in lines (between lines)
Data in File.
<QUOTE>
<SESSION>
<ATTRIBUTE NAME='Parameter Filename' VALUE='file1.parm'/>
<ATTRIBUTE NAME='Service Name' VALUE='None'/>
</SESSION>
<SESSION>
<ATTRIBUTE... (6 Replies)
Discussion started by: tmalik79
6 Replies
8. Shell Programming and Scripting
Hi All,
I have a file with more than 2000 columns and I would like to print each column 3 times, so that I will get a file like col1 col1 col1 col2 col2 col2 ........coln coln coln.
I have tried the following code:
awk '{for(i=1; i<=NF; i++) {s=s FS $i,$i,$i} print s;s=""}' input >... (2 Replies)
Discussion started by: Fredrick
2 Replies
9. Shell Programming and Scripting
hi,
Is it possible to print a particular character n number of times in a line?
for example.
i am print the following line using echo command..
echo "files successfully moved"
i want to count the number of characters that are been displayed. i am doin it using
echo "files... (8 Replies)
Discussion started by: Little
8 Replies
10. UNIX for Beginners Questions & Answers
I have a directory of files, I can show the number of lines in each file and order them from lowest to highest with:
wc -l *|sort
15263 Image.txt
16401 reference.txt
40459 richtexteditor.txt
How can I also print the number of unique lines in each file?
15263 1401 Image.txt
16401... (15 Replies)
Discussion started by: spacegoose
15 Replies
LEARN ABOUT DEBIAN
shell-quote
SHELL-QUOTE(1p) User Contributed Perl Documentation SHELL-QUOTE(1p)
NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS
--debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.8.4 2005-05-03 SHELL-QUOTE(1p)