Hi
First field is the Record Type. A Record Type 5 can have multiple Record Type 6's before another Record Type 5 appears.
I want to calculate the total of fields at position 8-11 on Record type 6 when Record Type 5 has a field at position 11-14 equals to '2222'. then it should delete the lines... (2 Replies)
The file content is dynamic and using this format:
name1 number1
name2 number2
name3 number3
name4 number4
....................
Need a smooth way to calculate the sum of all the numbers in that file (number1 + number2 + number3 + number4........ = total ) (11 Replies)
Good afternoon! Im new at scripting and Im trying to write a script to
calculate total space, total used space and total free space in filesystem names matching a keyword (in this one we will use keyword virginia). Please dont be mean or harsh, like I said Im new and trying my best. Scripting... (4 Replies)
Hi,
Just wondering, is there anyway I can get the total of logs generated by hours ? Let say I have these logs,
Sep 23 04:48:43 hsbcufs: NOTICE: realloccg /: file system full
Sep 23 04:48:47 hsbcufs: NOTICE: alloc: /: file system full
Sep 23 04:48:51 hsbcufs: NOTICE: realloccg /: file... (14 Replies)
HI
I have a file
# cat marks.txt
MARKS LIST
2013
Name english french chinese latin total_marks
wer 34 45 67 23
wqa 12 39 10 56
wsy 23 90 23 78
Now i need to find the total marks of each student using... (11 Replies)
Hi All ,
I have the following script as below , I tried to modify to meet the requirement , could someone help ? very thanks
================================================================================================
while read STR NAME; do
Total=0
MyString="$STR"
GetData () {... (18 Replies)
Trying to use awk to print the lines in file that have either REF or SNV in $3, add a header line, sort by $4 in numerical order. The below code does that already, but where I am stuck is on the last part where the total lines are counted and printed under Total_Targets, under Targets_less_than is... (4 Replies)
Hi
I am trying to calculate memory used by Linux System
free -m
total used free shared buffers cached
Mem: 32109 31010 1099 0 3600 7287
-/+ buffers/cache: 20121 11987
Swap: 10239 1282 8957
Now according to my requirement Im calculating memory using below cmd
free -m | awk 'NR==3{printf... (2 Replies)
Discussion started by: sam@sam
2 Replies
LEARN ABOUT DEBIAN
shell-quote
SHELL-QUOTE(1p) User Contributed Perl Documentation SHELL-QUOTE(1p)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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)