Function needs to be called based on its first character in a supplied string
Hi All,
I want to write a bash script in which a function needs to be called based on its first character in a supplied string. eg function "j" should be called when "jab" or "jgh" or "j" .... etc is hit. I have used complete -F in below script, however here function is invoked only when "j" is hit. Can any one help me in improving this script?
How to get exit value of an executable that gets called from function?
I have an executable called “myexec” which returns 0 on success and different values for different fail scenarios.
I need to call this (myexec) executable from “myprog()” function of other executable and get the exit value... (1 Reply)
Hi ,
I have three funcions f1, f2 and f3 .
f1 calls f2 and f2 calls f3 .
I have a global variable "period" which i want to pass to f3 .
Can i pass the variable directly in the definition of f3 ?
Pls help .
sars (4 Replies)
Hello,
I am new to unix hence struggling with my requirement.
I have a string like :
ECR/CHQ/GBP/12345.out
I need to get only the ECR/CHQ/GBP portion of the string(cut the string based on the third occurrence of / )...How do it do it?
Many thanks (3 Replies)
Hello Experts,
I am building a shell where I need to use case structure. The structure is in a function as in the sample code below:
# Shell mySh
#!/bin/sh
doThis(){
var=$1
case "$var" in
IT)
echo "ok 1 $var"
;;
... (7 Replies)
Hi Guys,
I am trying to pass arguments to the script i am wrinting.
When no argument is passed or wrong argument is passed, the script needs to output the way it needs to be called and exit.
Currently, when no arguments is passed, it is not getting exited but goes on assuming those... (3 Replies)
We have a program source C and is required to indicate how many times each function is called from the C program. also print the line number where there is a call.
I've tried something like this:
#!/bin/sh
for i in $*;do
if !
then
echo $i is not a C file.
else echo $i... (0 Replies)
Good day, I am a newbie here and thanks for accepting me
I have a task to modify input data where my input data looks like
123|34567|CHINE
1|23|INDIA
34512|21|USA
104|901|INDIASee that my input has two columns with different character length but max length is 5 and minimum length is 0 which... (1 Reply)
I have the below script which creates a directory or simply terminates without throwing error (exit 1) incase the directory exists.
bash-4.1$ vi mdir.sh
#!/bin/bash -e
shopt -s expand_aliases
alias mkdir=mkdir_s
mkdir_s(){
if ]; then
echo " directory EXISTS "
return
else
echo "... (3 Replies)
Hello,
I have this awk code in a bash script to perform a find and replace task. This finds one unique line in a file and substitutes the found line with a replacement.
#! /bin/bash
# value determined elsewhere
total_outputs_p1=100
# file being modified... (5 Replies)
Discussion started by: LMHmedchem
5 Replies
LEARN ABOUT DEBIAN
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