Hello All,
I have log file the result from a multithreaded process. So when a process finishes it will write to this log file as 123 rows merged.
The issue is sometimes the processess finish at the same time or write to the file at the same time as
123 rows merged.145 rows merged.
At... (5 Replies)
Hi All,
I am tring to insert a newline with "/" in a text file whenever there is the text "end;"
right now I have inside file:
.
.
end;
I want to have:
.
.
end;
/
I tried doing the following within the file
:g/^end;/s//end; \/ / (4 Replies)
Good day ...
Well i do have this project in school, in our Principles Of Operating System Class
We are using Cygwin....
And our project goes like this...
Create a dictionary using cygwin. Display the following menu at the start of
execution
1-add a word in the dictionary # specify... (1 Reply)
Good day ...
Well i do have this project in school, in our Principles Of Operating System Class
We are using Cygwin....
And our project goes like this...
Create a dictionary using cygwin. Display the following menu at the start of execution
1-add a word in the dictionary # specify the... (1 Reply)
I have a perl script that runs a program and puts the output of the program into a variable. The output of the file looks like:
Statistics 0
AverageTime:
Statistics 0
AverageTime:
I'm trying to run a regular express against this to pull out the first value in each of the parens... (1 Reply)
So I have a file that contains
>NM_#########AUGCAUCGUAGCUAGUCGAUACUGGACUG>NM_########AUGAGUAUGUAUGAUGUAUGUAUGA
where # is any digit 0-9 (the text is many repetitions of the pattern above, not just that, but all in one line), and I want it to show
>NM_#########... (2 Replies)
Hi,
I've been trying to work out how to add a new line to a file when the pattern matches .dmg.
I've been searching Google but yet not found a working solution.
Help would be appreciated... (9 Replies)
Hi All,
I have following piece of code in UNIX C Shell script and I want to add one more command which can add newline at the end of file only if there is no newline character exists.
foreach file (`ls $dd_PLAYCARD_EDI_IN`)
if ( -f $dd_PLAYCARD_EDI_IN/${file} ) then
cat -n... (4 Replies)
Hi ,
I have a file like
I want to add a new line before "Realized" only when it comes after "Sheep".
There may be any line betwwen "Sheep" and "Realized" other than this two.
Say my new line is "a goat", so the desired result would be
Can any body help me in this?
thanks (10 Replies)
The following is a sample of the data I am working with:
ID#___Hour
ID=10008 19
ID=10008 20
ID=10014 19
ID=10014 20
ID=21047 20
Need to get the following output:
ID#_______0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23
ID=10008 ------------------**---
ID=10014 ... (4 Replies)
Discussion started by: c@rlos
4 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)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 v5.16.3 2010-06-11 SHELL-QUOTE(1)