Hi,
I would like to ask if there is any method to grep a chuck of lines based on the latest file in a directory.
E.g
Latest file in the directory:
Line 1: 532243
Line 2: 123456
Line 3: 334566
Line 4: 44567545
I wanted to grep all the line after line 2 i.e. Line 3 and line 4 and... (5 Replies)
Hi,
I have for instance following INPUT file from which I want to grep ALL lines NOT containing the literal '{' into an OUTPUT file:
...
RUNJOB=1,AxBxALLxGEx
RUNJOB=0,AxBxDELxGExPRAEMxABLxZGS
RUNJOB=0,AxBxDELxGExPRAEMxHARM
RUNJOB=0,{UNIX: echo '§ASG§;%ASG_START}... (8 Replies)
I have to grep on a few words in a file and then display the line containing those words and the line above it.
For ex -
File1.txt contains...
abc xyz abc
This is a test
Test successful
abc xyz abc
Just a test
Test successful
I find the words 'Test successful' in the file... (6 Replies)
Hi Friends,
I have a file which has many of the statements like below
******** MAKING > noun1 < cg_all
statements
statements
statements
********* MAKING > noun2 < cg_all
statements
statements
statements
********* MAKING > noun3 < all
statements
statements
statements
I would... (3 Replies)
Hi,
I have one file, say file 1, that has data like below where 19900107 is the date,
19900107 12 144 129 0.7380047
19900108 12 168 129 0.3149017
19900109 12 192 129 3.2766666E-02
... (3 Replies)
Sample File
abc
xyz
def
abc
ggh
abc
xyz
I just created a sample file above to show what I need. I need to grep two lines. e.g abc and xyz(only if they are one after the other) so output would be
abc
xyz
abc
xyz
(note abc followed by ggh line would not come out in the output). I... (9 Replies)
Hello. How does one grep lines in a file that have only one field?
AAA BBB CCC
DDD
AAA CCC
Is is possible to grep "DDD" becuase it has only one field?
Thanks.
---------- Post updated at 08:03 PM ---------- Previous update was at 07:25 PM ----------
I found it, thank you!
awk 'NF... (2 Replies)
Hi guys,
This is probably very easy but I've no idea how to pull this out.
Basically, I need to find errors into a very large logfile. When you grep the ID, the output is like this:
+- Type: 799911 Code: Ret: 22728954 Mand: X Def: Des: UserDes: SeqNo: 2
+- Type: 799911 Code: Ret:... (5 Replies)
Discussion started by: Arkadia
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)