Same sed code prints(p) correct, but writtes(w) wrong output
Dear all,
I am using sed as an alternative to grep in order to get a specific line from each of multiple files located in the same directory. I am using sed because it prints the lines in the correct order (unlike grep).
When I write sed code that prints out the output I get it correct, but when I put it in a file, I get it only for one half of the files, and the other half is missing
Here is the code that 1 prints it out 2/3 puts the output into a file, but only one half of it:
I don't understand why this happens and would really appreciate your help.
Last edited by Scrutinizer; 07-11-2016 at 12:28 PM..
Reason: icode tags + formatting => code tags
I'm asking for explanation about the output of the diff format when i compare the two files f1 and f2:
root@host1 # cat f1
205226
205237
205250
205255
205262
205274
205307
205403
205464
205477
205500
205520
205626
205759
205766
205776 (2 Replies)
Hello All,
Here I am trying to find all the directories whose name starts with EFS or HOTFIX like in below example and below is my code but I don’t know why this is not working correctly.
drwxr-xr-x 3 qabuild denccefs 4096 Sep 23 21:36 EFS110929A_SOURCE/
-rwxrwxr-x 1 qabuild... (2 Replies)
Environment
Solaris 9
I have configured the Solaris9 as NTP client in which Solaris9 is syncing the time with a windows2008 R2 Server which is runing fine. Now I want that the xntpd service should start at startup. I did this via a script. Kindly correct if I did any thing wrong:
1.)Made... (9 Replies)
Hi All,
Am trying script to compare 2 files and print the difference found from old file to new file on line by line basis on side by side display.
Basically line by line comparision and files may contain blank line as well
I know we have compare/diff commands but i don't how to make... (10 Replies)
I am connecting to a device using telnet, I want my script to perform certain commands : ie- show device , show inventory..etc and write the output it sees from the terminal to a file.
this is what I have got :
#!/usr/bin/expect --
set running 1
spawn telnet <ip address>
expect ... (1 Reply)
Hi,
while using following awk commend I’m getting confused,
The output is not like as the row present in input files, can anyone explain and tell me how to print in the order like in input.
value=$(awk 'FNR>1 && NR==FNR{a=$4;next} a{sum+=$4} END {for(i in sum){printf i"\t"sum/2"@@";}}'... (5 Replies)
Hi,
I am running two scripts as below.
In Script 1 i am getting correct output in proper HTML format while in script 2 i am not getting output in mail and only html code is getting printed.I want to get the output of script 2.
Please guide.
1.IFILE=/home/home01/Report.csv
if #Checks... (7 Replies)
Hello
I am working on one script where I am trying to display all the directories which is inside the workspace but somehow it is giving me weird output and this is occurring only with one directory other also having the result.html file inside the directory.
for i in `ls -1 | egrep -iv... (2 Replies)
The awk below runs and produces the following output on the file2. This is just an example of the format as the file is ~14MB. file1.txt is attached. I am trying to count the ids that match between the two files and out the ids that are missing. Thank you :).
file2
970 NM_213590 ... (2 Replies)
Discussion started by: cmccabe
2 Replies
LEARN ABOUT DEBIAN
expect_unbuffer
UNBUFFER(1) General Commands Manual UNBUFFER(1)NAME
unbuffer - unbuffer output
SYNOPSIS
unbuffer program [ args ]
INTRODUCTION
unbuffer disables the output buffering that occurs when program output is redirected from non-interactive programs. For example, suppose
you are watching the output from a fifo by running it through od and then more.
od -c /tmp/fifo | more
You will not see anything until a full page of output has been produced.
You can disable this automatic buffering as follows:
unbuffer od -c /tmp/fifo | more
Normally, unbuffer does not read from stdin. This simplifies use of unbuffer in some situations. To use unbuffer in a pipeline, use the
-p flag. Example:
process1 | unbuffer -p process2 | process3
CAVEATS
unbuffer -p may appear to work incorrectly if a process feeding input to unbuffer exits. Consider:
process1 | unbuffer -p process2 | process3
If process1 exits, process2 may not yet have finished. It is impossible for unbuffer to know long to wait for process2 and process2 may
not ever finish, for example, if it is a filter. For expediency, unbuffer simply exits when it encounters an EOF from either its input or
process2.
In order to have a version of unbuffer that worked in all situations, an oracle would be necessary. If you want an application-specific
solution, workarounds or hand-coded Expect may be more suitable. For example, the following example shows how to allow grep to finish pro-
cessing when the cat before it finishes first. Using cat to feed grep would never require unbuffer in real life. It is merely a place-
holder for some imaginary process that may or may not finish. Similarly, the final cat at the end of the pipeline is also a placeholder
for another process.
$ cat /tmp/abcdef.log | grep abc | cat
abcdef
xxxabc defxxx
$ cat /tmp/abcdef.log | unbuffer grep abc | cat
$ (cat /tmp/abcdef.log ; sleep 1) | unbuffer grep abc | cat
abcdef
xxxabc defxxx
$
BUGS
The man page is longer than the program.
SEE ALSO
"Exploring Expect: A Tcl-Based Toolkit for Automating Interactive Programs" by Don Libes, O'Reilly and Associates, January 1995.
AUTHOR
Don Libes, National Institute of Standards and Technology
1 June 1994 UNBUFFER(1)