10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Gents,
Using the following code i am able to output the information i need, but some of the strings are not complete due to the separator : used..
Kindly can u help me to get all string after the first :
Example in the output file column 16 i should get
17/11/25 03:43:51:732000
but i... (8 Replies)
Discussion started by: jiam912
8 Replies
2. Shell Programming and Scripting
Hi,
I am trying to extract a specific information from a file which contains more than 200 million records. Attached the input file for your reference.
My file contains information below
... (4 Replies)
Discussion started by: rramkrishnas
4 Replies
3. Shell Programming and Scripting
hi, i have a file A like this:
******************* No 2823 ********************
contig15205-
G383C4U02H4G80+ is in contig15205-
G383C4U02HGLXM- is in contig15205-
G383C4U01C3HIZ+ is in contig15205-
... (3 Replies)
Discussion started by: the_simpsons
3 Replies
4. Shell Programming and Scripting
My scenario is as follows.
1. I have a reference file with the IP addresses and names
$ cat ref.list
10.11.xxx.xxx AA
10.12.xxx.xxx BB
10.13.xxx.xxx CC
10.14.xxx.xxx DD
2. A script runs and gets me one of the IP addresses and puts it in a separate file, for e.g... (2 Replies)
Discussion started by: Nagesh_1985
2 Replies
5. Shell Programming and Scripting
I need to grab information from the output of the ps command.
For each line of ps output that contains _progres -b I need to get the word that follows -p. The "-p" can be anywhere after "_progres -b".
Using grep to select the correct lines is no problem (e.g. ps -ef|grep "_progres \-b|grep -v... (3 Replies)
Discussion started by: Papa Lee
3 Replies
6. Shell Programming and Scripting
Hello,
I would need some help, :wall: on a linux script,
I am not sure how can I separate some text file,
Text file contains something similar to this:
share "userhome_e" "/fs1_100g/FILE58/userhome" umask=022 maxusr=4294967295 netbios=FILE58
share "bu share"... (3 Replies)
Discussion started by: nakaedu
3 Replies
7. UNIX and Linux Applications
Hi Everyone,
New to the forum, and have my first question.
I have the following Macro currently being used within Telnet to run a report for the date being entered. However, now I need the Macro to input the day after today to the the day after today.
Example: If today is May 9, 2012 - the... (0 Replies)
Discussion started by: CipherEffect
0 Replies
8. Shell Programming and Scripting
am using txr command (txr 1097) on a process that generates the following output. Im trying to extract the 13th field from the highlighted string. it is delimited by '?'. The 13th field corresponds to the '0' (in bold). can you let me know how I can extract the 13 th field please?
... (1 Reply)
Discussion started by: pazman
1 Replies
9. UNIX for Advanced & Expert Users
am using txr command (txr 1097) on a process that generates the following output. Im trying to extract the 13th field from the highlighted string. it is delimited by '?'. The 13th field corresponds to the '0' (in bold). can you let me know how I can extract the 13 th field please?
... (1 Reply)
Discussion started by: pazman
1 Replies
10. UNIX for Advanced & Expert Users
Hello,
I am wondering if you can assist with my question and ask kindly for this.
I have a number of files that are listed as file1.gz through file100.gz.
I am trying to perform a grep on the files and find a specific date that only resides within within one of the files. There are... (3 Replies)
Discussion started by: legharb
3 Replies
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)