Linked Questions

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2answers
1k views

$(tail) into variable removing \n

I am doing the following: x="Hello to the world of tomorrow\n <pre>"; x="${x}$(tail -n 50 log/logfile.log)" x="${x}</pre>"; echo -e $x | ./perlscript The Perl script: #!perl # ...
1
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2answers
5k views

Creating an empty file having a variable name in a script

I need to create an empty file using a shell script. The filename will be determined by examining all the files in a directory matching a pattern, say TEST.*, and appending _END to it so that the new ...
4
votes
1answer
165 views

Any problem assigning one variable to another in shell without using quotes? [duplicate]

This question is about assigning the entire contents of one variable to another variable. Variable is not being used (sent to echo, etc.) No parameter expansion is being done during the assignment. ...
2
votes
1answer
303 views

Printf formatting with variable format - what does this var reference?

I am experimenting with printf formatting in bash and I ran across this piece of code: #/bin/bash divider=============================== divider=$divider$divider header="\n %-15s %8s %10s %11s\n" ...
1
vote
1answer
430 views

Read a variable with “read” and preserve backslashes entered by the user

I'm using read to read a path from a user like so: read -p "Input the file name: " FilePath The user now enters this string: \Supernova\projects\ui\nebula What can I do to replace \ with /. The ...
1
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1answer
2k views

when to use double quotes with a variable in shell script? [duplicate]

I am in a confusion with what is meant by the double quotes referring to a variable. For example following two scripts gives the same output. What is really meant by the double quotes? Script1 ...
1
vote
1answer
120 views

what is diffrence between “$var” and “${var}” [duplicate]

i have seen in many script usage of "$var" and "${var}", so I just want to know diffrence between "$var" and "${var}"
1
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1answer
1k views

Outputting last modification date to another file?

I'm trying to read the number of lines in a file, and the last modification date of that file (e.g. if it was last modified Jan 18, 2013, it should output 2013-01-18), then append the data to the ...
1
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1answer
180 views

bash script disapearing variable

I have created a small script to move video files from a helmet mounted camera to my mythbuntu machine and there is a variable that for some reason will just not be passed onto the script. The ...
1
vote
1answer
446 views

Shell variables not working?

I'm trying to store the date in a variable ($DATE) so I can use it later, but it doesn't seem to work. See anything wrong? DATE=$(date +"%Y-%m-%d %R") sudo mysqldump -u root -pnotgivingyoumypassword ...
1
vote
1answer
647 views

What is the difference between $var and “$var”? [duplicate]

Possible Duplicate: $VAR vs ${VAR} and to quote or not to quote I assigned a variable var a value as follows: pradeep@pradeep-laptop:~$ var="Pradeep > is > a good > boy" ...
1
vote
1answer
1k views

Concatenate multiple strings with spaces in them?

I am trying to do the following in ksh shell: JMX_ROOT=/bfs-build/build-info/mep_mainline-Linux.latest/core/mainline/automation SMOKE_JMX_LOCATION="$JMX_ROOT/\"Smoke Set\"/*.txt $JMX_ROOT/\"Smoke ...
-1
votes
1answer
3k views

How to move file from one folder to another in shell script by changing the permission

I want to move a file from one folder to another folder. When the file's format is with space in between (file _name.dat) and when I am using the command mv file _name.dat /tmp then the file is not ...

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