Can't figure out how to find specific characters in specific columns Post: 302733641

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Can't figure out how to display specific data from a line using awk.

Hello, I cannot figure this one out. I would like to do the following. I have a line that has 7 words. It is possible that the line can have 20 words too. I always want to show the 9th word and beyond. The 9th word will always change so I do not have something to search for, so I think...

2. Shell Programming and Scripting

tell me how many specific characters there are?

i'm trying to get the user to enter a character, then the script should search for how many of that character exists in the file. I have the following code, but it doesn't work properly and it shows the wrong amount (i don't think im supposed to use grep). For example, I want it to say, "There are...

3. Shell Programming and Scripting

Find and replace a string a specific value in specific location in AIX

Hi, I have following samp.txt file in unix. samp.txt 01Roy2D3M000000 02Rad2D3M222222 . . . . 10Mik0A2M343443 Desired Output 01Roy2A3M000000 02Rad2A3M222222 . .

4. Shell Programming and Scripting

sed replacing specific characters and control characters by escaping

sed -e "s// /g" old.txt > new.txt While I do know some control characters need to be escaped, can normal characters also be escaped and still work the same way? Basically I do not know all control characters that have a special meaning, for example, ?, ., % have a meaning and have to be escaped...

5. Shell Programming and Scripting

Count specific characters at specific column positions

Hi all, I need help. I have an input text file (input.txt) like this: 21 GTGCAACACCGTCTTGAGAGG 50 21 GACCGAGACAGAATGAAAATC 73 21 CGGGTCTGTAGTAGCAAACGC 108 21 CGAAAAATGAACCCCTTTATC 220 21 CGTGATCCTGTTGAAGGGTCG 259 Now I need to count A/T/G/C numbers at each character location in column...

6. Shell Programming and Scripting

Remove first n characters from specific columns

I have a file like: s_20331 803 1 1 5 1:2=0.00000000 1:3=0.00000000 1:4=0.11111111 s_20331 814 1 1 5 1:2=0.00000000 1:3=0.12611607 1:4=0.00000000I would like to remove the four characters "x:x=" from all columns containing them (in my actual file, there are 15 total columns (i.e. columns...

7. UNIX for Dummies Questions & Answers

Printing lines with specific strings at specific columns

Hi I have a file which is tab-delimited. Now, I'd like to print the lines which have "chr6" string in both first and second columns. Could anybody help?

8. Shell Programming and Scripting

Find and replace with 0 for characters in a specific position

Need command for position based replace: I need a command to replace with 0 for characters in the positions 11 to 20 to all the lines starts with 6 in a file. For example the file ABC.txt has: abcdefghijklmnopqrstuvwxyz 6abcdefghijklmnopqrstuvwxyz abcdefghijklmnopqrstuvwxyz...

9. UNIX for Beginners Questions & Answers

Find records with specific characters in 2 nd field

Hi , I have a requirement to read a file ( 5 fields , ~ delimited) and find the records which contain anything other than Alphabets, Numbers , comma ,space and dot . ie a-z and A-Z and 0-9 and . and " " and , in 2nd field. Once I do that i would want the result to have field1|<flag> flag can...

10. Shell Programming and Scripting

Calling specific characters from a find variable

I'm trying to do something like this: find . -name blablabla -exec ln -s ./"{:53:14} blablabla" \; The idea is find blablabla and create a symbolic link to it using part of it's path and then it's name, "blablabla." I just don't know if I can call characters out of a find variable. ...

LEARN ABOUT OSX

colrm

COLRM(1)						    BSD General Commands Manual 						  COLRM(1)

NAME

     colrm -- remove columns from a file

SYNOPSIS

     colrm [start [stop]]

DESCRIPTION

     The colrm utility removes selected columns from the lines of a file.  A column is defined as a single character in a line.  Input is read
     from the standard input.  Output is written to the standard output.

     If only the start column is specified, columns numbered less than the start column will be written.  If both start and stop columns are spec-
     ified, columns numbered less than the start column or greater than the stop column will be written.  Column numbering starts with one, not
     zero.

     Tab characters increment the column count to the next multiple of eight.  Backspace characters decrement the column count by one.

ENVIRONMENT

     The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7).

EXIT STATUS

     The colrm utility exits 0 on success, and >0 if an error occurs.

SEE ALSO

     awk(1), column(1), cut(1), paste(1)

HISTORY

     The colrm command appeared in 3.0BSD.

BSD
								  August 4, 2004							       BSD

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Can't figure out how to display specific data from a line using awk.

Discussion started by: ctcuser

2. Shell Programming and Scripting

tell me how many specific characters there are?

Discussion started by: kev269

3. Shell Programming and Scripting

Find and replace a string a specific value in specific location in AIX

Discussion started by: techmoris

4. Shell Programming and Scripting

sed replacing specific characters and control characters by escaping

Discussion started by: ijustneeda