10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Here is the sample code:
str1="abccccc"
str2="abc?"
if ]; then
echo "same string"
else
echo "different string"
fi
Given that ? implies 0 or 1 match of preceding character, I was expecting the output to be "different string", but I am seeing "same string".
Am I not using the... (3 Replies)
Discussion started by: Rameshck
3 Replies
2. Shell Programming and Scripting
Hi all,
I want to compare two files based on column value
Kindly help me
a.txt
123,ABCD
456,DEF
789,SDF
b.txt
123,KJI
456,LMN
321,MJK
678,KOL
Output file should be like
Common on both files
c.txt
123,ABCD,KJI (8 Replies)
Discussion started by: aaysa123
8 Replies
3. Shell Programming and Scripting
Hi,
I have 25 groups and I need to perform all possible pairwise compariosns between them using the formula n(n-1)/2. SO in my case it will be 25(25-1)/2 which is equal to 300 comparisons.
my 25 groups are
FG1 FG2 FG3 FG4 FG5
NT5E CD44 CD44 CD44 AXL
ADAM19 CCDC80 L1CAM L1CAM CD44... (1 Reply)
Discussion started by: Diya123
1 Replies
4. UNIX for Dummies Questions & Answers
I'd love to get help on this one please. Ok so say I have a file called README with lines such as this:
index:index.html
required:file1.1:file2.1:file3.1
I'm having trouble with writing an if statement that compares the items in a list with a file inside README, what I imagine in my head... (7 Replies)
Discussion started by: mistsong1
7 Replies
5. UNIX for Dummies Questions & Answers
Hi,
I want to perform a simple date comparisons, i.e. select all files modified after a certain date (say 12-feb-2011)
I do not have the option of creating a file and using find's -newer option.
Any simple way to do this? I can do this by reading the stat command's output and comparing... (10 Replies)
Discussion started by: jawsnnn
10 Replies
6. Shell Programming and Scripting
Can someone please tell me what is wrong with this stings comparison?
#!/bin/sh
#set -xv
set -u
VAR=$(ping -c 5 -w 10 google.com | grep icmp_req=5 | awk '{print $6}')
echo I like cookies
echo $VAR
if "$VAR" == 'icmp_req=5'
then
echo You Rock
else
echo You Stink
fiThis is the error.... (6 Replies)
Discussion started by: cokedude
6 Replies
7. Shell Programming and Scripting
So, I have no formal higher education in programming at all and am self taught. I am now wondering what would be considered best practices? Like should I hard code a variable, then compare it to what I want to know or achieve, or should I just put the commands with in the brackets?
Example, a... (5 Replies)
Discussion started by: tlarkin
5 Replies
8. Shell Programming and Scripting
I have two files.And a sort of matrix analysis.
Both files have a string followed by two numbers:
File 1:
A 2 7
B 3 11
C 5 10
......
File 2:
X 1 10
Y 3 5
Z 5 9
What I'd like to do is for each set of numbers in the second file indicate if the first or second number (or both) in... (7 Replies)
Discussion started by: dcfargo
7 Replies
9. UNIX for Dummies Questions & Answers
Say for example I have a list of numbers..
5
10
13
48
1
could I use grep to show only those numbers that are above 10? For various reasons I can only use grep... not awk or sed etc. (7 Replies)
Discussion started by: Uss_Defiant
7 Replies
10. Shell Programming and Scripting
Hi, I need a script that loops through all the files two directories
passed to it via parameter, and if two files have the same name, do a
cmp comparison on the files. If the files are different, output the
specifics returned by cmp. What's the best way to go about writing
this, as I am a... (6 Replies)
Discussion started by: herman404
6 Replies
mdfind(1) BSD General Commands Manual mdfind(1)
NAME
mdfind -- finds files matching a given query
SYNOPSIS
mdfind [-live] [-count] [-onlyin directory] [-name fileName] query
DESCRIPTION
The mdfind command consults the central metadata store and returns a list of files that match the given metadata query. The query can be a
string or a query expression.
The following options are available:
-0 Prints an ASCII NUL character after each result path. This is useful when used in conjunction with xargs -0.
-live Causes the mdfind command to provide live-updates to the number of files matching the query. When an update causes the query
results to change the number of matches is updated. The find can be cancelled by typing ctrl-C.
-count Causes the mdfind command to output the total number of matches, instead of the path to the matching items.
-onlyin dir
Limit the scope of the search to the directory specified.
-name fileName
Searches for matching file names only.
-literal Force the provided query string to be taken as a literal query string, without interpretation.
-interpret Force the provided query string to be interpreted as if the user had typed the string into the Spotlight menu. For example, the
string "search" would produce the following query string:
(* = search* cdw || kMDItemTextContent = search* cdw)
EXAMPLES
The following examples are shown as given to the shell.
This returns all files with any metadata attribute value matching the string "image":
mdfind image
This returns all files that contain "MyFavoriteAuthor" in the kMDItemAuthor metadata attribute:
mdfind "kMDItemAuthor == '*MyFavoriteAuthor*'"
This returns all files with any metadata attribute value matching the string "skateboard". The find continues to run after gathering the
initial results, providing a count of the number of files that match the query.
mdfind -live skateboard
To get a list of the available attributes for use in constructing queries, see mdimport(1), particularly the -X switch.
SEE ALSO
mdimport(1), mdls(1), mdutil(1), xargs(1)
Mac OS X June 10, 2004 Mac OS X