02-18-2009
Quote:
Originally Posted by
taran
find . -name MCR0000000716214
Does this not just look for a file with that name in it?
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I am trying to parse hundreds of shell scripts to determine how they related to each other. Ideally for every script, I would get an output of:
What other scripts it calls
What files it reads
Environment variables it accesses
Any ideas on how to do this?
TIA! (2 Replies)
Discussion started by: bliss
2 Replies
2. UNIX for Dummies Questions & Answers
Hi guys,
I have the following grep command in a script to search through a file for a string and return its count, and it works fine for when the string exists:
grep "string" file.txt | wc
However, sometimes the result will be 0 and I want the script to take this as the result. Right now... (6 Replies)
Discussion started by: ocelot
6 Replies
3. Shell Programming and Scripting
How to find a particular line in a file without using grep? (3 Replies)
Discussion started by: proactiveaditya
3 Replies
4. Shell Programming and Scripting
Hello,
I am processing a text file which contains only words with few combination of characters (it is a dictionary file).
example:
havana
have
haven
haven't
havilland
havoc
Is there a way to exclude only 1 to 8 character long words which not include space or special characters : '-`~.. so... (5 Replies)
Discussion started by: alekkz
5 Replies
5. Programming
Hi All,
I am just curious, not programming anything of my own. I know there are libraries like gmp which does all such things. But I really need to know HOW they do all such things i.e. working with extremely large unimaginable numbers which are beyond the integer limit. They can do add,... (1 Reply)
Discussion started by: shoaibjameel123
1 Replies
6. UNIX for Dummies Questions & Answers
I've got two files that each contain a 16-digit number in positions 1-16. The first file has 63,120 entries all sorted numerically. The second file has 142,479 entries, also sorted numerically.
I want to read through each file and output the entries that appear in both. So far I've had no... (13 Replies)
Discussion started by: Scottie1954
13 Replies
7. Shell Programming and Scripting
Hi All,
I have a file with long list of numbers. This file contains only one column. These numbers are very large. I am using following command:
cat myfile.txt | awk '{ sum+=$1} END {print sum}'
The output is coming in scientific notation. How do I get the result in proper format?
... (4 Replies)
Discussion started by: angshuman
4 Replies
8. Shell Programming and Scripting
say I have a big list of something like:
sdg2000
weghre10
fewg53
gwg99
jwegwejjwej43
afg10293
I want to remove the numbers of any line that has letters + 1 to 4 numbers
output:
sdg
weghre
fewg
gwg
jwegwejjwej
afg10293 (7 Replies)
Discussion started by: Siwon
7 Replies
9. Shell Programming and Scripting
Hi All,
I am writing a script in which I need to gather 2 numbers for 'total' and 'successful'. The goal is to compare the two numbers and if they are not equal, rerun the task until all are successful. I'm thinking the best way will be with awk or sed, but I really don't know where to begin... (8 Replies)
Discussion started by: hburnswell
8 Replies
LEARN ABOUT DEBIAN
shell-quote
SHELL-QUOTE(1p) User Contributed Perl Documentation SHELL-QUOTE(1p)
NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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)