this works for me:
However... it seams there are no hashes that start with four zeros.
You can verify this by changing the condition to:
or even removing the condition and then greping the output file for '^0000' (i.e. lines with four zeros at their beginning.
PS. Note that while this does work, it is not very efficient. As all the piping invokes subshels. 10Kiterations, with quite a few subshells in each iteration.... plenty of room for optimization. ;-)
hi,
my first question is :-
i would like to know how do i loop through the output of a variable.
for ex:- if i have a variable called x and echo $x gives the output like
feb 19 07
feb 20 07
feb 21 07
i would like to know how do i loop through this since it is separated and i... (1 Reply)
Situation: I have a working shell script on our file server (OSXS Tiger) to connect to a workstation, which is using a portable home directory (phd), and rsync a user's MirrorAgent.log. I'm not that strong of a scripter (obviously), but I would like to add other workstations to this script as they... (4 Replies)
Hello members,
I'm working on the Solaris environment and the DB i'm using is Oracle 10g.
Skeleton of what I'm attempting;
Write a ksh script to perform the following. I have no idea how to include my sql query within a shell script and loop through the statements. Have therefore given a... (4 Replies)
Hi
How to call a shell scripting through a Perl scripting? Actually I need some value from Shell scripting and passes in the Perl scripting. So how can i do this? (2 Replies)
I am new to scripting and this is probably the 4th or 5th simple script I have written. I am working with a HUGE number of data that need to be organized into folders and named a certain way. I wrote the naming script using a while function to go through the 1000-some folders and rename the files... (0 Replies)
Hi,
Iam using below code to login to servers to get cpu utilisation. but output is coming for only one server. code is below
root@blr-svr-oclan-01 # more SSSC_CPU_UTIL1.sh
#!/bin/sh
echo "CPU UTILIZATION"
while read line; do
IDLE=`/usr/local/bin/sshpass -p 'xxx' ssh xxx@$line 'sar 2 2' |... (1 Reply)
Hii all.
I have a problem with my shell script.
This is my code
while
do
space.exe inputs/gr$count >> outputs/t$count
count=$
done
I ussually work in cygwin. When i tried in linux(ubuntu, kali linux) i found error said Syntax error : end of file unexpected (expecting "do")... (6 Replies)
#!bin/ksh
---------------------------------------------------------------------------------------------
-- Get sequence number from database
---------------------------------------------------------------------------------------------
.os rm... (3 Replies)
Discussion started by: swathi reddy1
3 Replies
LEARN ABOUT XFREE86
hashstash
HASHSTASH(3) libbash hashstash Library Manual HASHSTASH(3)NAME
hashstash -- libbash library that implements hash data structure
SYNOPSIS
hashSet <Value> <Key> <HashName> [SubHashName [...]]
$retval hashGet <Key> <HashName> [SubHashName [...]]
$retval hashKeys <HashName> [SubHashName [...]]
hashRemove <Key> <HashName> [SubHashName [...]]
hashDelete <HashName> [SubHashName [...]]
DESCRIPTION
General
hashstash is a collection of functions that implement basic hash data-structure in bash scripting language.
The function list:
hashSet Adds a value to the hash
hashGet Returns a value from the hash
hashKeys Returns a list of keys of the hash
hashRemove Removes a key from the hash
hashDelete Deletes a hash
Detailed interface description follows.
FUNCTIONS DESCRIPTIONS
hashSet <Value> <Key> <Hashname> [SubHashName [...]]
Adds a value to the hash.
Parameters:
<Value>
The value to set in HashName[Key].
<Key>
The key for the value Value.
<HashName> [SubHashName [...]]
A string that contains the name of the hash. If the hash is a sub hash of another hash, the "father hash" name MUST BE WRITTEN FIRST,
followed by the sub-hash name.
Value will be the value of the key Key in the hash HashName. For example if you have (or want to define) hash C, which is subhash of hash B,
which is subhash of hash A, and C has a key named ckey1 with value cval1, then you should use:
hashSet cval1 ckey1 A B C
$retval hashGet <Key> <HashName> [SubHashName [...]]
Returns the value of Key in HashName to the $retval variable.
Parameters:
<Key>
The key that hold the value we wish to get.
<HashName> [SubHashName [...]]
A string that contains the name of the hash. If the hash is a sub hash of another hash, the "father hash" name MUST BE WRITTEN FIRST,
followed by the sub-hash name.
Return Value:
The value of the key Key in the hash HashName. The value is returned in the variable $retval.
$retval hashKeys <HashName> [SubHashName [...]]
Returns a list of keys of the hash HashName in the variable $retval.
Parameters:
<HashName> [SubHashName [...]]
A string that contains the name of the hash. If the hash is a sub hash of another hash, the "father hash" name MUST BE WRITTEN FIRST,
followed by the sub-hash name.
Return Value:
The value of the key Key in the hash HashName. The value is returned in the variable $retval.
hashRemove <Key> <HashName> [SubHashName [...]]
Removes the key Key from the hash HashName.
<Key>
The key we wish to remove from HashName.
<HashName> [SubHashName [...]]
A string that contains the name of the hash. If the hash is a sub hash of another hash, the "father hash" name MUST BE WRITTEN FIRST,
followed by the sub-hash name.
This function should also be used to remove a sub-hash from its "father hash". In that case, the key will be the name of the sub-hash.
hashDelete <HashName> [SubHashName [...]]
Deletes the hash HashName [SubHashName [...]].
Parameters:
<HashName> [SubHashName [...]]
A string that contains the name of the hash. If the hash is a sub hash of another hash, the "father hash" name MUST BE WRITTEN FIRST,
followed by the sub-hash name.
If this function is used on a sub-hash, a key with the name of the sub-hash will remain in its "father hash" and will hold a NULL value.
BUGS
A hash name can only contain characters that are valid as part of bash variable names (i.e. a-zA-Z0-9_). The same applies for hash keys.
As for now, there is no way of knowing if a key represents a value or a sub-hash. If a sub-hash will be used as a key, the returned value
will be its keys list.
EXAMPLES
Define hash table hashA with key Akey1 with value Aval1 use:
% hashSet Aval1 Akey1 Ahash
Now:
% hashGet Akey1 Ahash
% echo $retval
Aval1
% hashKeys Ahash
% echo $retval
Akey1
%
HISTORY
The idea to write hashstash library appeared when we've discovered the full power of the bash eval function.
As of the name hashstash, it has two meanings. The first, it means 'stash' of hash functions. The second is, that hashstash contains sub-
hashes inside, so it looks like stash of packed information.
AUTHORS
Hai Zaar <haizaar@haizaar.com>
Gil Ran <gil@ran4.net>
SEE ALSO ldbash(1), libbash(1)Linux Epoch Linux