1. UNIX for Dummies Questions & Answers

I used Notepad to compile my txt file and then I transferred this file to UNIX. When I use vi to open the file, I found that at the end of each line there was a "^M" character. In the original txt file there was not this character. Why this character would been added automatically in UNIX? (4 Replies)

2. UNIX for Dummies Questions & Answers

Hello every one and thanks in advance for the time you will take to think about my problem. I would like to know if it's possible (in BASH) to read a text file character after character. Exactly this is what I would like to do : Txt file : ATGCAGTTCATTGCCAAA...... (~2.5 millions... (3 Replies)

3. Shell Programming and Scripting

Hi all, I executed this script top -n 1 | awk '{ if (NR==3) print $2 }'and it will give me in console '31.6%us,'however, if I put the same script in txt file top -n 1 | awk '{ if (NR==3) print $2 }' >> test.txtwhen I open the test.txt I see 31.6%ESC(BESCI just actually need the 31.6 % to be... (1 Reply)

4. Shell Programming and Scripting

Hi friend, i have the following problem: when i am writting the below command on the command prompt , its working. while read -n 1 ch; do echo "$ch" ; echo "$ch" ; done<file_name.out. but when i am executing it after saving it in a ksh file, its not working. Please helppppppppp .. thankss... (18 Replies)

5. Shell Programming and Scripting

I have written an application in Tcl-Expect which spawns minicom and sends and receives data via the serial port. Sometimes i see that the application receives control characters along with human readable data. A search on the internet tells me that the control characters are nothing but the VT... (0 Replies)

6. Shell Programming and Scripting

Hi All, I am trying to read a file character by character, #!/bin/bash while read -n1 char; do echo -e "$char\c" done < /home/shak/testprogram/words Newyork is a very good city. Newyorkisaverygoodcityforliving I need to preserve the spaces as thats an... (3 Replies)

7. Shell Programming and Scripting

Hi, I am trying to sort a csv file which has say 10 lines each line having a row size that is upto 30183 no. of COLUMNS (Row length = 30183). There is a LINE FEED (LF) at the end of each line. When I try to sort this file say, based on the second FIELD using the below command, sort -t ',' +1... (5 Replies)

8. Shell Programming and Scripting

so, i want to tail about the last 3000 lines of a log file and find the column that has the same number of characters across all 3000 lines (or most of the 3000 lines) tail -3000 logfile | while read line do ColumnCharCount=$(for eachwordorwhatever in "${echo $line}" do ... (8 Replies)

9. Shell Programming and Scripting

Good day, I am a newbie here and thanks for accepting me I have a task to modify input data where my input data looks like 123|34567|CHINE 1|23|INDIA 34512|21|USA 104|901|INDIASee that my input has two columns with different character length but max length is 5 and minimum length is 0 which... (1 Reply)

10. What is on Your Mind?

Today I changed the forum mysql database to permit 2 letter searches: ft_min_word_len=2 I rebuilt the mysql search indexes as well. Then, I added a "quick search bar" at the top of each page. I have tested this and two letter searches are working; but it's not perfect,... (1 Reply)