I am working with single line file with 589744523 characters having 542 "^M" (line feed) character.
I want to make 542 different lines file from the single line file thr. shell program only (it can be done thr vi command)
rd
anil
sorry for duplicate post previously, actually i don,t know... (6 Replies)
Can someone tell me how I can do this?
e.g:
Say file1.txt contains:
today is monday
the 22 of
NOVEMBER
2010
and file2.txt contains:
the
11th
month
of
How do i replace the word NOVEMBER with (5 Replies)
hi,
i want to capture the CPU performance, memory , harddisk usage into a single file for every 10 seconds iterations and it shall run until i kill it.
can somebody plz help me in this...
thanx (1 Reply)
Hi,
I have a file that consist of around six million line, now the task is to divide this file into 12 small file so that each file would have half a million lines in it.
Thanks. (3 Replies)
Hi friends
please help me on below,
i have 5 files like below
file1 is
x 10
y 20
z 15
file2 is
x 100
z 245
file3 is
y 78
z 23
file4 is
x 100 (3 Replies)
hdr=$(cut -c1 $path$file|head -1)#extract header”H”
trl=$(cut -c|path$file|tail -1)#extract trailer “T”
SplitFile=$(cut -c 50-250 $path 1$newfile |sed'$/ *$//' head -1')# to trim white space and extract table name
If; then # start loop if it is a header
While read I #read file
Do... (4 Replies)
Hi Team,
In our project we have written below 2 scripts like
Script1:
Shell script start & END
Begin Audit process - uses teradata bteq
END Audit Process
Script 2: Environemtal variable file different
Now Client ask to change this requirement and need below files:
Script1:... (1 Reply)
We have three files as mentioned below:
1. main_file.txt: This is the file in which all operations will be done. Which means this file will be signed by using the below two files
2. signature_file.txt: This is a status file and contains two signatures.
3. command.txt:file contains two commands... (2 Replies)
I am trying to consolidate multiple information files (<hostname>.Linux.nfslist) into one file so that I can import it into Excel. I can get the file contents with cat *Linux.nfslist >> nfslist.txt. I need each line prefaced with the hostname. I am unsure how to do this.
--- Post updated at... (5 Replies)
Discussion started by: Kentlee65
5 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)