I am not an expert of shell scripting, but I can do some simple things. Now, I read a script written by others and I need some help from the experts of this forum.
Please help me to understand what is going on in this cycle:
In particular, I do not understand this synax: [[...]] && \ export... ||,
where the || operand is used after the export command. It rise by me the question if the export command return any Boolean value?
i have this program in bash shell:
#!/bin/bash
array=(20 20 20 20 20)
i=0
j=0
awk '/%/ {print $3}' try.txt|
while (read s)
arr=$s
i=`expr $i + 1`
echo "$i"
end
how can i convert this into c shell? (1 Reply)
Discussion started by: npatwardhan
1 Replies
4. Post Here to Contact Site Administrators and Moderators
Where can I download the VTC - Unix Shell Scripting Advanced complete video.
I don't know in which thread I should post this question.Plz help me out, or just tell me the link in the reply to this post.
Thanks in advance. (0 Replies)
Hi all, i have more questions but its all about variables so lets begin
1st, is possible to list all variables ?
Command env display only shell variables, but what if i declared another variable? Command set display more variables but not defined by me.
2nd, what difference is between set... (24 Replies)
Hello,
I'm working on unix with grep (GNU grep) 2.5.1. I'm going through some of the newer regex syntax using Regular Expression Reference - Advanced Syntax a guide.
ls -aLl /bin | grep "\(x\)"
Which works, just highlights 'x' where ever, when ever.
I'm trying to to get (?:) to work but... (4 Replies)
Hi all
I've got a question regarding error handling in shell scripts. My background is mainly object oriented programming languages, but for a year or so I've been doing more and more (bash) shell scripting (which I quite enjoy by the way).
To handle errors in my scripts I... (3 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
I am working on a hands on project. We are creating a script for a corporate phone list. The project I am... (2 Replies)
Hi Folks -
I need help converting a piece of code from batch to bash.
Here is the code:
FOR /f "eol=; tokens=1,2,3,4 delims=, " %%i in (Update_Subvars.txt) do (
ECHO alter database %%i.%%j set variable %%k %%l;
)
What it's doing is retrieving the values from this file:
... (2 Replies)
Hello,
I have a newbe syntax error but I cant find it
syntax error: unexpected end of file
#!/bin/csh
# pe request
#$ -pe mpi_16 32
#### 16 core : 'mpi_16 16' || 24 core : 'mpi_24 24 '
# our Job name
#$ -N test2MD
#$ -S /bin/sh (1 Reply)
Discussion started by: dulceC
1 Replies
LEARN ABOUT DEBIAN
parse_dynamic_clustertoc
parse_dynamic_clustertoc(1M) System Administration Commands parse_dynamic_clustertoc(1M)NAME
parse_dynamic_clustertoc - parse clustertoc file based on dynamic entries
SYNOPSIS
cdrom/export/exec/sparc.Solaris_2.x/sbin/install.d/parse_dynamic_clustertoc
cdrom/export/exec/i386.Solaris_2.x/sbin/install.d/parse_dynamic_clustertoc
DESCRIPTION
This script parses the clustertoc file before the suninstall(1M) process is run. parse_dynamic_clustertoc is called by a modified syscon-
fig script on the install CD. When parse_dynamic_clustertoc runs, it reads the clustertoc and when it encounters SUNW_CSRMBRIFF lines, it
either checks the platform using the script's builtin function, or calls an external script. The script exits with a 0 if the cluster
entry is included, otherwise it will be ignored. If the cluster entry is to be included, the SUNW_CSRMBRIFF =(test test_arg)cluster line
is converted to SUNW_CSRMEMBER =cluster.
EXAMPLES
Example 1: Checking For an SX Framebuffer
The following is an example of a simple external test to check for an SX Framebuffer. The entry in the clustertoc file is shown and fol-
lowing that is the script that must be placed in the install.d/dynamic_test directory.
SUNW_CSRMBRIFF=(smcc.dctoc sx)SUNWCsx
#! /bin/sh
#
# Likewise, this file is expected to live under $(TESTDIR).
#
case "$1"
in
sx) prtconf -p | grep 'SUNW,sx' 1> /dev/null;;
esac
FILES
cdrom/Solaris_2.x/locale/C/.clustertoc.dynamic
Dynamic version of the clustertoc file
cdrom/export/exec/sparc.Solaris_2.x/sbin/install.d/dynamic_test
Directory that contains any additional tests
cdrom/export/exec/i386.Solaris_2.x/sbin/install.d/dynamic_test
Directory that contains any additional tests
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SHWPcdrom (Solaris CD) |
+-----------------------------+-----------------------------+
SEE ALSO suninstall(1M), clustertoc(4), attributes(5)SunOS 5.10 6 Sep 1995 parse_dynamic_clustertoc(1M)