Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

ksh escape a character

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting ksh escape a character
# 1  
Old 10-03-2013
ksh escape a character
friends,

I have a situation where i am using a $RANDOM function along with the filename, I want this to be escaped by the OS in the first assignment (works as expected) and executed in the second assignment (does not execute $RANDOM)

filename1=filename1_\$RANDOM
echo $filename1
filename2=filename1
echo $filename2

The output of $filename1 is filename1_$RANDOM
The output of $filename2 is filename1_$RANDOM (i am expecting the $RANDOM to be substituted by a random number in the second assignment, since there is no escape character not sure why the shell is not substituting $RANDOM with a number)
# 2  
Old 10-03-2013
Try
Code:
filename2=$(eval echo $filename1)

This User Gave Thanks to CarloM For This Post:
Balaji M
# 3  
Old 10-03-2013
Why do you need dynamic variable names? Time and time again we get asked for this, and there's extremely rarely any good reason to do this. It's insecure and error-prone.
# 4  
Old 10-04-2013
Thanks, It works perfect !
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Function to add escape character before specified character

Hi , I am looking for a function which will do the following. 1. I have a variable which will hold few special chracter like SPECIAL_CHARS="& ;"2. I have an escape character. ESCAPE_CHAR="\"3. Now when I passed some string in the function it will return the same string but now it will... (8 Replies)
Discussion started by: Anupam_Halder
8 Replies

2. UNIX for Advanced & Expert Users

Escape special character

My input is: jdbc:Oracle:thin:@(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.147.109.211)(PORT=1526))(CONNECT_DAT A=(SID= MWDBD22))) In the search pattern, ( and ) and . and @ are special RE, and need to be escaped \( and \) and \. and \@ how can i do it by script or command (9 Replies)
Discussion started by: arindam guha
9 Replies

3. Shell Programming and Scripting

Escape special character

Hi, How to use * in call to pl/sql block from shell script? The line "select * from" is causing all files and directiores to show up in email notification but if I give all column names then it works, Please let me know how to use '*' instead of giving all column names, in other wirds how to... (2 Replies)
Discussion started by: sandy162
2 Replies

4. Shell Programming and Scripting

sed - with escape character

i have string as below str=".<date>" in which i need to replace < with /< , when i tried with sed , got the output. --> echo $str | sed 's/</\\</g' .\<date> when i tried to assign it to a variable , i am not getting the same --> a=`echo $str | sed 's/</\\</g'` ; echo $a... (4 Replies)
Discussion started by: expert
4 Replies

5. Shell Programming and Scripting

escape character not working

I need to change a pattern with single quotes # echo "serversignature: 'On'" serversignature: 'On' I did # echo "serversignature: 'On'" | sed 's/.*serversignature.*/serversignature: 'Off'/' serversignature: Off The output I need is with single quotes. But its swallowing it. ... (2 Replies)
Discussion started by: anilcliff
2 Replies

6. Shell Programming and Scripting

replace \ (escape character)

All , i have input line as below . abc\ , ewioweioi \, and want the output as below removing the "\" abc , ewioweioi , could anyone help me out (2 Replies)
Discussion started by: expert
2 Replies

7. Shell Programming and Scripting

awk escape character

ll|awk '{print "INSERT INTO SCHEMA.TABLE_NAME VALUES (`"$9 "`,"$5");" }' INSERT INTO SCHEMA.TABLE_NAME VALUES (``,); INSERT INTO SCHEMA.TABLE_NAME VALUES (`TABLE_PARTITION_Y2010M03D06.dmp`,7923328); INSERT INTO SCHEMA.TABLE_NAME VALUES (`TABLE_PARTITION_Y2010M03D06.log`,1389); But I want ' in... (2 Replies)
Discussion started by: faruque.ahmed
2 Replies

8. Shell Programming and Scripting

Escape character

Hi , I want to change space to ' in my script. I tried doing this, sed 's/ /\'/g' filename but i could not get it. can some one help me please. Thanks, Deepak (4 Replies)
Discussion started by: deepakpv
4 Replies

9. Shell Programming and Scripting

awk / escape character

Hi I'm trying to split a dir listing eg /home/foo1/foo2 I'm using ksh I've tried dir=/home/foo1/foo2 splitit=`echo $dir | awk -F '\/' '{print $1}'` echo $splitit nothing is output! I have checked the escape character. The only one I have found is \ BTW `pwd` | awk -F \/... (8 Replies)
Discussion started by: OFFSIHR
8 Replies

10. Shell Programming and Scripting

Escape character in vi?

I want to replace a string which contains "/" in vi but what is the escape character for forward slash? e.g. I have a text file with the contents below and I want to replace "/Top/Sub/Sub1" with "ABC". /Top/Sub/Sub1 The replace command I am using is ... (4 Replies)
Discussion started by: stevefox
4 Replies
Login or Register to Ask a Question