Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Write string variables to file

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Write string variables to file
# 1  
Old 01-18-2012
Write string variables to file
I have the following:

Code:
#! /bin/bash
foo="bar"
this="that"

vars="foovar=$foo\n\
thisvar=$this\n"

I want to write the following to a file:

Code:
foovar="bar"
thisvar="that"

Then in another script, I pull this file, and loop through it:

Code:
while read line; do
    eval $line
done < "foofile"

Then I can use $foovar in the new script. I had this working before, but lost the script, and completely forgot how I had set it up Smilie
# 2  
Old 01-18-2012
Have you tried:

Code:
printf "foovar=\"%s\"\n" "$foo" >>foofile

# 3  
Old 01-22-2012
Quote:
Originally Posted by Validatorian
Code:
while read line; do
    eval $line
done < "foofile"


You don't need a loop to read the values from the file; you can just source it:
Code:
. foofile

# 4  
Old 01-24-2012
Quote:
Originally Posted by cfajohnson

You don't need a loop to read the values from the file; you can just source it:
Code:
. foofile

That is wonderful! Exactly what I needed. Thank you!
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How can I write variables to same line of a file?

I am trying to keep variables in a file. if I have all variables at the same time, I can write them all like below. echo $var1","$var2","$var3 But, these variables are being calculated at different times then they are lost so I want to keep them in a file seperated by "," . echo... (5 Replies)
Discussion started by: snr_silencer
5 Replies

2. Shell Programming and Scripting

Need to search a particular String form a file a write to another file using perl script

I have file which contains a huge amount of data. I need to search the pattern Message id. When that pattern is matched I need to get abcdeff0-1g6g-91g3-1z2z-2mm605m90000 to another file. Kindly provide your input. File is like below Jan 11 04:05:10 linux100 |NOTICE... (2 Replies)
Discussion started by: Raysf
2 Replies

3. Shell Programming and Scripting

grep exact string from files and write to filename when string present in file

I am attempting to grep an exact string from a series of files within a directory and append that output to the filename when it is present in the file. I've been after this all day with no luck. Thanks for your help in advance :wall:. (4 Replies)
Discussion started by: JC_1
4 Replies

4. Shell Programming and Scripting

Extract string from a file & write to a new file (Perl)

Hi, This is the first time playing around with perl and need some help. Assuming if i have a line of text that looks like this: Date/Time=Nov 18 17:12:11;Device Name=192.168.1.1;Device IP=192.168.1.1;Device Class=IDS;Source IP=155.212.212.111;Source Name=UNKNOWN;Source Port=1679... (3 Replies)
Discussion started by: LuckyGuy
3 Replies

5. Shell Programming and Scripting

How to delete a string pattern in a file and write back to the same file

I have a control file which looks like this LOAD DATA INFILE '/array/data/data_Finished_T5_col_change/home/oracle/emp.dat' PRESERVE BLANKS INTO TABLE SCOTT.EMP FIELDS TERMINATED BY '|' OPTIONALLY ENCLOSED BY '"' TRAILING NULLCOLS (................. ..................) How can i edit the... (1 Reply)
Discussion started by: mwrg
1 Replies

6. UNIX for Dummies Questions & Answers

How to write a string with special characters to a file

Hi, I want to erase the contents of a file and write a sql query into the file. "" > tmp.txt "select count\(\*\) \"Names\" from v\$ground where status\=\'Invalid\'\;" > tmp.txt doesnt work, pls help. (2 Replies)
Discussion started by: happyrain
2 Replies

7. UNIX for Dummies Questions & Answers

write string of characters to file

Hi, I have a text file with a very long string of characters, like "ACGCTTGCAA...", and I want to make another file with 36 characters from this string file every 4 lines like: character of position 1 to position 36 of the string file, position 2-37, position 3-38 ... position... (2 Replies)
Discussion started by: fadista
2 Replies

8. Shell Programming and Scripting

line contains a string write to new file otherwise append

hi i have the following function, reading file line by line, if line contains "Change state" i need to cut some fields otherwise i need to append the total line to the new file function parse() { while read LINE do echo $LINE |grep -q "Change state" if then echo $LINE |grep -q... (1 Reply)
Discussion started by: Satyak
1 Replies

9. Shell Programming and Scripting

Can I write a string into file from shell?

Hi , If I used this wc -l *.dat ,it will count number of line in these files like this 1234 test1.dat 2345 test2.dat 3456 test3.dat 7035 total can I add '|'(pipe) in the middle of those number and string like this 1234|test1.dat 2345|test2.dat 3456|test3.dat Thanks in advance. (10 Replies)
Discussion started by: guitaroa47
10 Replies

10. Shell Programming and Scripting

Write system variables into file

Hi everyone, I was told, i my job, to do a script that creates the backup of all the files that are important to us. So i created the script, put it in the crontab and it works great. Now what i want is to write to a file what directories have being copied with date and time. How can i... (3 Replies)
Discussion started by: jorge.ferreira
3 Replies
Login or Register to Ask a Question