Does anyone know what the microprograms behind cat (and other commands) are like? In what language are those programs designed? Is their source available somewhere?
No particular reason, just wondering.
I know it's a bit strange... (3 Replies)
hi all
i have some script
echo $$ > process-id
d='cat process-id'
if test-s "TMP"$d then
echo "serv1"
else
echo "serv2"
fi
the variable d should contain the number of the process,
instead of that it contains 'cat process-id'
how shall i do that the d will contain only the number?... (6 Replies)
Hello Friends,
I have a question, i am trying to write a shell script in the bash shell.
#!/bin/sh
NAWK=/bin/nawk
AWK=/bin/awk
FIX_XML_PATH=/home/administrator/testfix/fix/
Y=`ls $FIX_XML_PATH | grep xml`
echo $Y
cat $Y
in this case when i do the echo $Y command it gives me the... (11 Replies)
Hello,
I am trying to send text to a USB to serial adaptor and then to an external speech synthesizer. I tried using the cat and echo commands with no luck. I have gotten some audio output from my synthesizer using Kermit a terminal emulator, so I am pretty sure my synthesizer and my USB to serial... (1 Reply)
I am having problems getting a list of filenames that I want from a directory.
example: I have 3 files - filename.xxx.20110505.123030
filename.yyy.20110505.123030
filename.zzz.20110505.123030
There may be multiple xxx,... (3 Replies)
Can we concatenate say,
I have a few files prefixing with 2009...
So now i want all the 2009 files into one single file..
Can this be achieved???? (4 Replies)
hello! why this works?
cd /home/user
cat * | ecasound -i stdin -o jack
and this doesn't?
cd /home/user/somedirectory
cat * | ecasound -i stdin -o jack
somedirectory are full with exe files which are the best source for this sort of noise thing (10 Replies)
Apologies, probably a really simple problem:
I've got a text file (nh.txt) with this in it:
user1 email1 email2
user2 email1 email2
etc
With the following basic script:
for tline in $(cat nh.txt)
do
echo "**********"
echo $tline
done
... (3 Replies)
For the command below, I need to understand what exactly the command does and provide an examples for which the output will be saved to file save2... From my understanding, if the file provides an error in the first half of the pipe, it'll save to save1 and will never give an error to save to... (2 Replies)
Discussion started by: ayz649
2 Replies
LEARN ABOUT OPENSOLARIS
diffmk
diffmk(1) User Commands diffmk(1)NAME
diffmk - mark differences between versions of a troff input file
SYNOPSIS
diffmk oldfile newfile markedfile
DESCRIPTION
diffmk compares two versions of a file and creates a third version that includes "change mark" (.mc) commands for nroff(1) and troff(1).
oldfile and newfile are the old and new versions of the file. diffmk generates markedfile, which, contains the text from newfile with
troff(1) "change mark" requests (.mc) inserted where newfile differs from oldfile. When markedfile is formatted, changed or inserted text
is shown by | at the right margin of each line. The position of deleted text is shown by a single *.
USAGE
See largefile(5) for the description of the behavior of diffmk when encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).
EXAMPLES
Example 1 An example of the diffmk command.
diffmk can also be used in conjunction with the proper troff requests to produce program listings with marked changes. In the following
command line:
example% diffmk old.c new.c marked.c ; nroff reqs marked.c | pr
the file reqs contains the following troff requests:
.pl 1
.ll 77
.nf
.eo
.nh
which eliminate page breaks, adjust the line length, set no-fill mode, ignore escape characters, and turn off hyphenation, respectively.
If the characters | and * are inappropriate, you might run markedfile through sed(1) to globally change them.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWdoc |
+-----------------------------+-----------------------------+
SEE ALSO diff(1), nroff(1), sed(1), troff(1), attributes(5), largefile(5)BUGS
Aesthetic considerations may dictate manual adjustment of some output. File differences involving only formatting requests may produce
undesirable output, that is, replacing .sp by .sp 2 will produce a "change mark" on the preceding or following line of output.
SunOS 5.11 14 Sep 1992 diffmk(1)