1. UNIX for Dummies Questions & Answers

I have a program that is reading strings into a vector from a file. Currently I am using this command: a.out < file1 The program runs and prints the contents of the vector to the screen, like its supposed to. The problem is that it needs to read in 3 files to fill the vector. Is there anyway... (4 Replies)

2. Shell Programming and Scripting

Hi, I needs to split *.txt files from single directory depends on the some mutltiple input values. i have wrote the code like below for file in *.txt do grep -i -h "value1|value2" $file > $file; done. My requirment is more input values needs to be given in grep; let us say 50... (3 Replies)

3. Shell Programming and Scripting

I have a program that runs like "cat f1 - f2 -", I need to write shell script to run the program whose standard input will be redirected from 2 files. I spend a whole day on it, but didn't figure out. Can someone help me out? Thanks! (8 Replies)

4. Shell Programming and Scripting

Hello Gyues! I would like to use awk to perform data extraction from several files. The data files look like this: DWT26R 1 PEP1 CA 1 OH2 SKIPPED: 0 STEP: 1 0.29000E+01 0.55005E-02 0.60012E-03 0.30000E+01 0.11149E+00 0.13603E-01 0.31000E+01 0.39719E+00 0.63013E-01 0.32000E+01... (9 Replies)

5. Shell Programming and Scripting

What is the syntax to use multiple input files in a SED command. i.e. substitute a word with a phrase in every file in a directory. for every file in /usr/include that has the word "date" in the file grep -l '\<date\>' /usr/include/*.h find each occurrence of the word "time" in the file &... (3 Replies)

6. Shell Programming and Scripting

Hi All, I am new to shell scripting..My problem is i want to give multiple csv files as input to awk script and process the data into one file.. My input file is File1 File2 File3 Product Location Period SalesPrice A x 8/11/2010 ... (7 Replies)

7. UNIX for Dummies Questions & Answers

I would like to write a for loop that does the following: I have a file called X.txt and other files called 1.txt,2.txt, .....,1000.txt. I want to substitute the 6th column of the file X.txt with 1.txt and store the output as X.1. Then I want to do the same with X.txt and 2.txt and store the... (1 Reply)

8. Shell Programming and Scripting

Hi! I'm new in awk and I need some help. I have a folder with a lot of files and I need that awk do something in each file and print a new file with the output. The input file name should be modified when I print the outpu files. Thanks in advance for help! :-) ciao (5 Replies)

9. Shell Programming and Scripting

Hi all , i want to pass multiple files as input to a for loop for i in file1 file2 file3 do some awk action < $i >> $i.out done but im getting error in that for loop is the way i use to pass files to awk using for correct and 2.we can directly pass multiple files to awk as... (7 Replies)

10. Shell Programming and Scripting

Hi, I have many test*.ft1 files to which I want to read as input for a script called pipe2txt.tcl and print the output in each separate file. For example, pipe2txt.tcl < test001.ft1 > test001.txt How can I read many files in this maner? thank you very much, Best, Pahuja (5 Replies)