11-21-2005
Quote:
Originally Posted by grasper
sed -n '/STRING/,$p' filename|head -$n
(where $n is the number of lines you want after the match)
Thats much more elegant !
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1. Shell Programming and Scripting
Hi experts,
I want to grep a number 9366109380 from a file but it will also show me the next 5 lines. Below is the example-
when i grep 989366109380, i can also see the next 5 lines.
Line 1. <fullOperation>MAKE:NUMBER:9366109380:PPAY2;</fullOperation>
Line 2.... (10 Replies)
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2. Shell Programming and Scripting
i need to grep a STRING_A & the next few lines after the STRING_A
example file:
STRING_A yada yada
line 1
line 2
STRING_B yada yada
line 1
line 2
line 3
STRING_A yada yada
line 1
line 2
line 3
line 4
STRING_A yada yada
line 1
line 2
line 3
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3. Shell Programming and Scripting
Hi,
I have a log file that I need to monitor as it's being written to, and I want to exclude certain strings from the output. At the moment I'm using ...
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4. Shell Programming and Scripting
I have several very large file that are extracts from Oracle tables. These files are formatted in XML type syntax with multiple entries like:
<ROW>
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5. Shell Programming and Scripting
Hi All,
Please tell me how can I Find a string using grep & print the line above or below that in solaris?
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6. Shell Programming and Scripting
Hi,
1_strings file contains
$ cat 1_strings
/home/$USER/Src
/home/Valid
/home/Review$ cat myxml
<projected value="some string" path="/home/$USER/Src">
<input 1/>
<estimate value/>
<somestring/>
</projected>
<few more lines >
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7. Shell Programming and Scripting
Hello,
I want to extract from a file like :
20120530025502914 | REQUEST | whatever
20120530025502968 | RESPONSE | whatever
20120530025502985 | RESPONSE | whatever
20120530025502996 | REQUEST | whatever
20120530025503013 | REQUEST | whatever
20120530025503045 | RESPONSE | whatever
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.......
06/09/2013|12:00:00 PM|3|26112|40|44032|27419.7|6 1 0 93 |6|1|0|93
06/09/2013|12:30:00 PM|3|26112|40|44032|27491|11 4 0 85 |11|4|0|85
I have "sysperf.out" file containing the lines above.
What I like to have on the output is:
Node: prod1db ===> this is the hostname
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I have a large dataset with following structure;
C 0001 Carbon
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D SAR002 ethane
D SAR003 propane
D SAR004 butane
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C 0003 Nitrogen
C 0004 Oxygen
D SAR011 ozone
D SAR012 super oxide
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10. Shell Programming and Scripting
say we have :
2914 | REQUEST | whatever
2914 | RESPONSE | whatever
2914 | SUCCESS | whatever
2985 | RESPONSE | whatever
2986 | REQUEST | whatever
2990 | REQUEST | whatever
2985 | RESPONSE | whatever
2996 | REQUEST | whatever
2010 | SUCCESS | whatever
2013 | REQUEST | whatever
2013 |... (7 Replies)
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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)