10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello,
I am trying to concatenate a string in a bash script like this:
runCmd="docker run -e \"IMAGE_NAME=$IMAGE_NAME\" "
env | grep "$ENV_SUFFIX" | while read line; do
envCmd="-e \"${line}\" "
runCmd=$runCmd$envCmd
echo $runCmd # here concatenation works fine
done
echo... (3 Replies)
Discussion started by: czabak
3 Replies
2. Shell Programming and Scripting
Hi Guys,
I was scratching my head for this for half a day... finally not successful :confused:
Following is the problem
I have a variable
$ var1=123
$ var2-234
$ var3=345
and another Variable
$ i=1
Now i wanted to save these into a Variable as shown below
for i in 1 2 3
do... (5 Replies)
Discussion started by: ramprabhum
5 Replies
3. Shell Programming and Scripting
I have the path name in a Variable
Ex:
$XML_PATH_FLAG = /ebs/appl/u00/universe01/inbound/universeorders
Now I have to pick up ALL XML files in this directory . In other words
I have to pick up ALL the files
/ebs/appl/u00/universe01/inbound/universeorders/F1.xml... (2 Replies)
Discussion started by: Pete.kriya
2 Replies
4. UNIX for Dummies Questions & Answers
Hi
I am trying to learn linux step by step an i am wondering
can i use cat command for concatenate files but i want to place context of file1 to a specific position in file2 place of file 2 and not at the end as it dose on default?
Thank you. (3 Replies)
Discussion started by: iliya24
3 Replies
5. Shell Programming and Scripting
I have a file with
<suit:run date="Trump Tue 06/19/2012 11:41 AM EDT" machine="garg-ln" build="19921" level="beta" release="6.1.5" os="Linux">
Need to find word "build" then
extract build number, which is 19921 also
release number, which is 6.1.5 then
concatenate them to one variable as... (6 Replies)
Discussion started by: garg
6 Replies
6. Web Development
hi..:)
this is my sample part of my program..
$csv_output .= $row.",".
$row.",".
$row.",".
$row.",".
$row.",".
... (2 Replies)
Discussion started by: Jeneca
2 Replies
7. Shell Programming and Scripting
Hi Guys,
I have a file. Each record needs to inserted into a table. The table also have other columns which needs to be inserted with Shell variables.
The following is the file.
Error code None.
Error Code 1
The shell script is having these variables.
Name=Magesh
Dep=Coding
... (1 Reply)
Discussion started by: mac4rfree
1 Replies
8. Shell Programming and Scripting
Hello,
It might be stupid question But I will ask it any way:)
var1="1 2 3 4"
var2="5 6 7 8"
var3=$var1\ $var2
var4="$var1\n$var2"
echo "$var1"
echo "$var2"
echo "$var3"
echo "$var4"
The result of executing this code is as follow
1 2 3 4
5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4\n5 6... (12 Replies)
Discussion started by: fdc2suxs
12 Replies
9. UNIX for Dummies Questions & Answers
Hello All,
How to concatenate a string to a variable in a script
I'm having a file which is consisting of data and i need to extract the first line of the file and append it to a string.
/tmp/samp.list containg 60000
I like to concatenate it with a string (SS_)
grep -w SS_$(head -1... (1 Reply)
Discussion started by: nkamalkishore
1 Replies
10. Shell Programming and Scripting
I need a way to build variable in this manner:
variable_$i
Inside a for loop i need to create it.
where i goes from 1 to 30..
and then i need to print them on screen with echo $variable_$i
which is the best way to do this? (6 Replies)
Discussion started by: sreedivia
6 Replies
shift(1) User Commands shift(1)
NAME
shift - shell built-in function to traverse either a shell's argument list or a list of field-separated words
SYNOPSIS
sh
shift [n]
csh
shift [variable]
ksh
* shift [n]
DESCRIPTION
sh
The positional parameters from $n+1 ... are renamed $1 ... . If n is not given, it is assumed to be 1.
csh
The components of argv, or variable, if supplied, are shifted to the left, discarding the first component. It is an error for the variable
not to be set or to have a null value.
ksh
The positional parameters from $n+1 $n+1 ... are renamed $1 ..., default n is 1. The parameter n can be any arithmetic expression that
evaluates to a non-negative number less than or equal to $#.
On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not
performed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
csh(1), ksh(1), sh(1), attributes(5)
SunOS 5.10 15 Apr 1994 shift(1)