08-21-2013
read man bash on Parameter Expansion / Substring Expansion.
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1. Shell Programming and Scripting
I wish to compute the number of dot chars in a string.
Example:
VAR="aaaa.bbbbb.cccc"
I try the shortest command to solve this test.
Thanks in advance for your help.
Regards,
Giovanni (7 Replies)
Discussion started by: gio123bg
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2. Shell Programming and Scripting
for example:
i hav a string like :
/rmsprd/arch01/rmsprd/rmsprdarch72736.log
how I can extract
my_num=72736?
I know I can
echo "/rmsprd/arch01/rmsprd/rmsprdarch72736.log" | tr "/" " " | awk '{ print $4 }' to get rmsprdarch72736.log (4 Replies)
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3. Shell Programming and Scripting
To find out number of "|" symbol is available in file:
Input:
a|b|c|d|z
Ouput:
4
I am using below set of commands,It is working... Anybody have anyother solution using sed / awk.
cnt=`wc -c <1.txt`
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4. Shell Programming and Scripting
Hi!
I'm having trouble usind sed to remove the char ' from within a database's varchar register's sql.
For example, on the following sql:
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5. Shell Programming and Scripting
Hi everyone,
suppose that I have the following line:
#test your knowledge
can I use AWK to print the word "test" only? without the #?
what should I change to this:
awk '{print $1}'
thanks in advance guys (2 Replies)
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Hi guys,
This is my input
2735:<7001> 34 789 701 2
2774:<7001> 34 789 701 2
How to delete characters after colon :
Including colon : too ?
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I wanted to remove junk char in my csv. :mad:
Input file format:
"17","9986782190","0","D","2"
"17","9900918331","0","D","2"
"13","9986782194","0","A","2"
Output file format
9986782190
9900918331
9986782194
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8. Shell Programming and Scripting
hello
how can i cont number of char with loop coomand?
i dont want to use wc or other special command
the script should check all word's char. one by one
also a counter can handle the number
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9. Shell Programming and Scripting
I have a file with random characters where every time a char occurs twice, one occurrence must be removed.
Eg.
asjkdhaSSd
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asjkdhaSd
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Hi I have a file where i want to remove a char before a specific pattern.
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(
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C, ----comma needs to be removed
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A,
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LEARN ABOUT X11R4
libbash
LIBBASH(7) libbash Manual LIBBASH(7)
NAME
libbash -- A bash shared libraries package.
DESCRIPTION
libbash is a package that enables bash dynamic-like shared libraries. Actually its a tool for managing bash scripts whose functions you may
want to load and use in scripts of your own.
It contains a 'dynamic loader' for the shared libraries ( ldbash(1)), a configuration tool (ldbashconfig(8)), and some libraries.
Using ldbash(1) you are able to load loadable bash libraries, such as getopts(1) and hashstash(1). A bash shared library that can be loaded
using
ldbash(1) must answer 4 requirments:
1. It must be installed in $LIBBASH_PREFIX/lib/bash (default is /usr/lib/bash).
2. It must contain a line that begins with '#EXPORT='. That line will contain (after the '=') a list of functions that the library
exports. I.e. all the function that will be usable after loading that library will be listed in that line.
3. It must contain a line that begins with '#REQUIRE='. That line will contain (after the '=') a list of bash libraries that are
required for our library. I.e. every bash library that is in use in our bash library must be listed there.
4. The library must be listed (For more information, see ldbashconfig(8)).
Basic guidelines for writing library of your own:
1. Be aware, that your library will be actually sourced. So, basically, it should contain (i.e define) only functions.
2. Try to declare all variables intended for internal use as local.
3. Global variables and functions that are intended for internal use (i.e are not defined in '#EXPORT=') should begin with:
__<library_name>_
For example, internal function myfoosort of hashstash library should be named as
__hashstash_myfoosort
This helps to avoid conflicts in global name space when using libraries that come from different vendors.
4. See html manual for full version of this guide.
AUTHORS
Hai Zaar <haizaar@haizaar.com>
Gil Ran <ril@ran4.net>
SEE ALSO
ldbash(1), ldbashconfig(8), getopts(1), hashstash(1) colors(1) messages(1) urlcoding(1) locks(1)
Linux Epoch Linux