1. UNIX for Dummies Questions & Answers

Apologies for the trivial nature of this question but I cannot seem to get a simple re direct to a log file to work Step 1 touch log.txt at -f batch.sh now >> log.txt I am trying to get the batch.sh contents into the log file Manny Thanks (8 Replies)

2. Shell Programming and Scripting

Hi, I want ssh to the remote server and then execute ls and redirect the output to the file in remote server itself like ssh root@$server `ls /var/log/users.txt > root@$server:/home/users.txt` Can you please let me know the correct syntax for it. Thanks in advance (2 Replies)

3. UNIX for Dummies Questions & Answers

Suppose I have a file named a When I write cat a>a The following error message is displayed cat: a: input file is output file and my file a is truncated to zero size. Also the exit status of the last command is 1 Can someone tell me what actually happens when I do so? (1 Reply)

4. UNIX for Dummies Questions & Answers

I am trying to write a script which will output notifications to a logfile, but I would like to cap the logfile to, let's say, 200 lines. Specifically I am using custom firmware, DD-wrt, on my router and I am implementing a script to connect to my work vpn. I have a loop that pings a computer... (2 Replies)

5. Shell Programming and Scripting

I have a system stat command running which generates data after 5 sec or so. I pass this data to awk and do some calculation to present the data differently. Once done now I want to pass this data to file as and when generated but doesn't work..unless the first command completes successfully.... (6 Replies)

6. Shell Programming and Scripting

I am using tar command to append daily database backups on tape. "tar --append " command help me to do this. But tar --append command does not produce any output on stdout if it succeed. I want the output for that appended command to a log file. This log file should contain only the name of the... (0 Replies)

7. Shell Programming and Scripting

So I have a existing file that I used the uniq command on and I need to save the output to the same file without changing the file name. I have tried $ uniq filename > filename then when I cat the file it then becomes blank like there is nothing inside. any help would be much appreciated... (0 Replies)

8. UNIX and Linux Applications

Dear All, ./waf --run scratch/myfirst > log.out 2>&1 The above is a command line to redirect the output to a file called log.out. what is the 2>&1 part for ? Thank you (2 Replies)

9. Shell Programming and Scripting

I need to count the number of lines in a .txt file and put it in a variable. I am using the following code #!/bin/bash count = $(wc -l "some file.txt" | awk '{print$1}') echo $count It is giving the following error. line3: count: command not foundWhat am I doing wrong here? :confused: (7 Replies)

10. Shell Programming and Scripting

I am struck up with a problem and that is with output redirection. I used all the ways for the redirection of the output of c binary to a file, still it is failing. Here are the different ways which I have used: ./a.out | tee -a /root/tmp.txt 2>&1 ./a.out | tee -a /root/tmp.txt 1>&1 ./a.out |... (2 Replies)