I have two files. One contains names and another file (66 MB, ASCII format) contains details of persons. How do I compare the names in the first file with the second file and write the matches to a third file. I would prefer this to be solved in UNIX or VB.
Thanks. (2 Replies)
Can someone please help me figure out what the command syntax I need to use is?
Here is what I am wanting to do.
I have hundreds of thousands of files I need to look for a specific search string in.
These files are spread across multiple subdirectories from one main directory.
I would like... (4 Replies)
hi there.
I'm at SunOS 5.9
At my new job i'm using UNIX, and it's my first time.
i'm trying to make a script for:
-find files with a name passed to it as parameter
-compare results with file size passed as parameter too
-when comparison's true --> move file
-if not--> make nothing
... (3 Replies)
I am trying to join/paste columns from two files for the rows with matching first field. Any help will be appreciated.
Files can not be sorted and may not have all rows in both files.
Thanks.
File1
aaa 111
bbb 222
ccc 333
File2
aaa sss mmmm
ccc kkkk llll
ddd xxx yyy
Want to... (1 Reply)
I have a directory with a large # of files and in each file I am looking to match a string in one file with a string in the subsequent n file(s). If there is a match between a string in one file and a string in the next n file(s) then delete the subsequent duplicate file(s). Here is sample input:
... (2 Replies)
I've two files with data like below:
file1.txt:
AAA,Apples,123
BBB,Bananas,124
CCC,Carrot,125
file2.txt:
Store1|AAA|123|11
Store2|BBB|124|23
Store3|CCC|125|57
Store4|DDD|126|38
So,the field separator in file1.txt is a comma and in file2.txt,it is |
Now,the output should be... (2 Replies)
Hi,
I am looking for a way to compare two text files and print the matches. For example;
File1.txt
89473036
78474384
48948408
95754748
47849030
File2.txt
47849030
46730356
16734947
78474384
36340047
Output: (11 Replies)
I have two text files that look something like this:
A:B:C 123
D:E:F 234
G:H:I 345
J:K:L 123
M:N:O 456
P:Q:R 567
A:B:C 456
D:E:F 567
G:H:I 678
J:K:L 456
M:N:O 789
P:Q:R 890
I want to find the line where the first column matches and then combine the second columns into a single... (8 Replies)
I would like to add two additional conditions to the actual code I have: print '+' if in File2 field 5 is greater than 35 and also field 7 is grater than 90.
while read -r line
do
grep -q "$line" File2.txt && echo "$line +" || echo "$line -"
done < File1.txt '
Input file 1:
... (5 Replies)
This is probably rehash but I did look. :rolleyes:
I want a bash script that will take Item 1 in File1, traverse all lines in File2 and output if a match exists. Continuing the pattern recursively, Item2, File1, traverse all lines in File2 for a match, continue this pattern until all lines... (6 Replies)
Discussion started by: rcbarr2014
6 Replies
LEARN ABOUT DEBIAN
shell-quote
SHELL-QUOTE(1p) User Contributed Perl Documentation SHELL-QUOTE(1p)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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)