Hello,
I am writing a shell script and I need to find a way to
count the number of whitespaces in a string.
Eg:
NAME="Bob Hope"
I am looking for a way to count the number of whitespaces in this string. So a command that would take this string and return 1.
Or take
"First Middle Last"... (3 Replies)
Sample input:
Loading File System
Networking in nature
Closing the System
now i need to extract the patterns between the words File and Closing:
i.e. sample output:
System
Networking in Nature
Thanks in advance !!!!!!!!!!!!!!!!! (6 Replies)
Hi,
i have a directory /u02.i have 2 files in it like abc1.gz abc2.gz i want to store file pattern in a variable like
f1="abc?"
i don't want to take .gz in variable rather i want .gz appended when i need to unzip the file like
gunzip $f1
Can you please help me how to... (3 Replies)
Hi,
i have following lines of code which is properly working.
CAT1="${InputFile}CAT_*0?????"
CAT2="${InputFile}CAT_*0?????"
CountRecords(){
integer i=1
while ]; do
print P$i `nawk 'END {print NR}' $1 ` >> ${OutputPath}result.txt &
i=i+1
shift
done
}
CountRecords "$CAT1"... (8 Replies)
This should be somewhat simple, but I need some help with this one.
I have a bunch of files with tags on the end like so...
Filename {tag1}.ext
Filename2 {tag1} {tag2}.ext
I want to hold in a variable just the filename with all the " {tag}" removed. The tag can be anything so I'm looking... (4 Replies)
Hi guys...Wow I just composed a huge post and it got erased as I was logged out automatically
Anyways I hope someone can help me out here.
So the task I'm working on is like this
I have a bunch of files that I care about sitting in a directory say $HOME/files
Now my job is to go and loop... (6 Replies)
I need something to strip out some text from a string. I basically have a variable that will always be in the same pattern but will be a different length. Example below. I need to somehow extract the text between <Strat> and </Source> from example below. I can't load it into a file for audit... (5 Replies)
HI,
Please help me with the following problem:
I have an xml file with the following lines
<NameValuePair>
<name>SharedResources/JDBC/Admin/password</name>
<value>rjmadmin</value>
</NameValuePair>
<NameValuePair>
... (4 Replies)
Hi,
I am trying to find a way to get sed/awk/grep to help me find a string in a log file that exists between two datestamps and then print the preceding datestamp up to the next datestamp.
Here is an example of my logfile:
+++ 2013/03/28 17:01:37.085 SIGNALING HIGH ACTIVE
Failure Response... (5 Replies)
Discussion started by: raytx
5 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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)