character matching


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers character matching
# 1  
Old 09-19-2000
Error

Is there a way to pull out a character at a time from a work in unix, using a shell script?
# 2  
Old 09-19-2000
Tools

Depending on what exactly you're trying to do, there could be a couple ways to do it. Say you have a variable...
$VAR
...and you want to pull the 4th through the 6th character out of it. You can echo it to the screen...
echo $VAR | cut -c4-6
...or you can assign it to a variable...
CHARACTER4=`echo $VAR | cut -c4-6`
...if you don't know how many characters long the word is, you can leave the end number off the cut command...
echo $VAR | cut -c4-
...and it will echo the variable, minus the first three characters. Get it? Email me if you need more help, at ::email removed:: .

Last edited by oombera; 02-13-2004 at 02:36 PM..
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Ubuntu

Bash to ash port, character-matching problem

I'm trying to convert this working bash script into an Ash script, read -p "Username:" _username if ! ]]; then echo "Valid" else echo "INVALID" fi However, Ash does not recognize the "=~" character. How can I do this? Also, is there a good reference guide, so I... (5 Replies)
Discussion started by: fzivkovi
5 Replies

2. Shell Programming and Scripting

Merging two special character separated files based on pattern matching

Hi. I have 2 files of below format. File1 AA~1~STEVE~3.1~4.1~5.1 AA~2~DANIEL~3.2~4.2~5.2 BB~3~STEVE~3.3~4.3~5.3 BB~4~TIM~3.4~4.4~5.4 File 2 AA~STEVE~AA STEVE WORKS at AUTO COMPANY AA~DANIEL~AA DANIEL IS A ELECTRICIAN BB~STEVE~BB STEVE IS A COOK I want to match 1st and 3rd... (2 Replies)
Discussion started by: crypto87
2 Replies

3. Shell Programming and Scripting

Check Character matching from pos 7-15 to pos 211-219 if True then replace 211-219 with spaces

Script for if characters from positions 7-15 are matching with characters from position 211-219 then replace all char from 211-219 with 9 space. Total length of record is 420. Here is the specification of the data in file. Position Field Data Type... (5 Replies)
Discussion started by: lancesunny
5 Replies

4. Shell Programming and Scripting

sed or awk delete character in the lines before and after the matching line

Sample file: This is line one, this is another line, this is the PRIMARY INDEX line l ; This is another line The command should find the line with “PRIMARY INDEX” and remove the last character from the line preceding it (in this case , comma) and remove the first character from the line... (5 Replies)
Discussion started by: KC_Rules
5 Replies

5. Shell Programming and Scripting

pattern matching on any special character in Unix

Hi, I have field in a file which would come with any special character, how do i check that field? Eg: @123TYtaasa>>>/ 131dfetr_~2 In the above example, how do I add pattern for any special character on the keyboard. Thanks (3 Replies)
Discussion started by: techmoris
3 Replies

6. Shell Programming and Scripting

Matching multiples of a single character using sed and awk

Hi, I have a file 'imei_01.txt' having the following contents: $ cat imei_01.txt a123456 bbr22135 yet223 where I want to check whether the expression 'first single alphabet followed by 6 digits' is present in the file (here it is the first record 'a123456') I am using the following... (5 Replies)
Discussion started by: royalibrahim
5 Replies

7. UNIX for Dummies Questions & Answers

Matching character

Alright, I am stuck here. I have this variable that stores the word = HELLO and I have converted it it to ----- I have asked user to input one character at a time. SAy, if they enter E. Therefore, I need to search 2nd character and input E there. makes it -E--- (other checkings have been... (2 Replies)
Discussion started by: felixwhoals
2 Replies

8. Shell Programming and Scripting

tcl: regexp matching special character

Hello Experts, Can someone help me here: I have a variable which contains a string with "". set var1 {a} set str1 {a is the element i want to match} Now "regexp $var1 $str1" does not work? ("regexp {a\} $str1" works, but var1 gets it's value automatically from another script) Is... (6 Replies)
Discussion started by: sumitgarg
6 Replies

9. Shell Programming and Scripting

matching repeated character

looking for a bit of help with sed. I have a file that looks a bit like this: sdfghhjk asdfdfghgj asdfhgghj werdfvtfh edftbgh 1211211221 sdffgfm dfghnhjm dfvfsgbgh adsfv bdhgn 1111111dffg dfv1122 dsgvbghn111111 fffffffgbdghn fffffff sfgh3333gs vdf (5 Replies)
Discussion started by: robsonde
5 Replies

10. Shell Programming and Scripting

Matching a choice of character in test command

Hi ] && exit 0 Although it, the $answer, is 'y', the test operation returns true. && exit 0 This works but I want to do multiple choice matching. I don't want to do like: Please help (2 Replies)
Discussion started by: lalelle
2 Replies
Login or Register to Ask a Question