I decided to tackle part of this problem. My quest: write a bat file to set the environment variable x to the output of the "cd" command. I am using the newer cmd.exe on Windows XP rather than the older command.exe. Even so, this was harder than it sounds. My final bat file:
That '/f "usebackq"' option on the "for" statement is the only thing I found that can parse the output of a program. And the variable in the "for" statement seems to not be an environment variable, so I had to do that explicit "set" in the loop.
I am looking for all the header files (*.h).. which as per documentation of the UNIX system shouldbe there.
I am using
find / -name *.h -print
But it does't give anything.
My question is under what condition the "find" condition will fail to find the file?
What is the work around.
... (4 Replies)
For whatever reason I cant seem to fix my syntax to do the following. I want to run a grep and count how many instances come up and store that number in a variable but I keep erroring out. Here's my code in bash:
number=grep blah file.txt | wc -l (1 Reply)
Hi
I'm working on solaris and I'm trying to run a script. The part listed here does not work properly, the result of the find command is not in the output
file /tmp/result
(I've checked the find command , executing the shell with sh -x , it seems correct). It seems like I've lost the standard... (4 Replies)
Hi!
Could you please explain why the result order isn't in reverse time order as it is requestet by "xargs ls -ltr" command (ksh shell)? There are about 5000 files in dir.
$ find . -name "*201010*" -print |xargs ls -ltr |tail
-rw-r--r-- 1 oracle oinstall 54326 Nov 25 20:32... (2 Replies)
Hi all,
Is there a simple way to read a command output as a variable? I've running a batch file to do:
attrib.exe * | find /c /v "" >filecount.txt
but rather than write it to the txt file I'd like to read the total in as a variable to pass to the rest of the bat file...
Any help much... (1 Reply)
Hi,
I have the following command that lists all the .o files from all the directories except of vwin (which I don't want it)
for i in `ls -d */*.o|awk '$0 !~ "vwin"'`; do echo $i; done
The result is something like that
dir1/file1.o
dir1/file2.o
dir2/file3.o
etc.
So, I want to create a... (9 Replies)
I created a file with the permissions of 776.
When I ran the command find /root/Desktop -perm -644 -type f
The created file shows up as part of the results.
Doesn't -perm -mode mean that for global, only 4(read) and 2(write) can be accepted ? (2 Replies)
Given this bit of script:
retprd=$1
find ${extrnllogdir} -name "*.log" -mtime +$retprd -exec ls -l {} \; >> $logfile
produces this (with 'set -x')
++ find /xfers/oracle/dw/data -name '*.log' -mtime +60 -exec ls -l '{}' ';'
find: /xfers/oracle/dw/data/cron: Permission denied
Where is he... (5 Replies)
Hello.
From a script, a command for a test is use :
find /home/user_install -maxdepth 1 -type f -newer /tmp/000_skel_file_deb ! -newer /tmp/000_skel_file_end -name '.bashrc' -o -name '.profile' -o -name '.gtkrc-2.0' -o -name '.i18n' -o -name '.inputrc'
Tha command... (3 Replies)
Discussion started by: jcdole
3 Replies
LEARN ABOUT CENTOS
while
while(n) Tcl Built-In Commands while(n)
__________________________________________________________________________________________________________________________________________________NAME
while - Execute script repeatedly as long as a condition is met
SYNOPSIS
while test body
_________________________________________________________________DESCRIPTION
The while command evaluates test as an expression (in the same way that expr evaluates its argument). The value of the expression must a
proper boolean value; if it is a true value then body is executed by passing it to the Tcl interpreter. Once body has been executed then
test is evaluated again, and the process repeats until eventually test evaluates to a false boolean value. Continue commands may be exe-
cuted inside body to terminate the current iteration of the loop, and break commands may be executed inside body to cause immediate termi-
nation of the while command. The while command always returns an empty string.
Note: test should almost always be enclosed in braces. If not, variable substitutions will be made before the while command starts execut-
ing, which means that variable changes made by the loop body will not be considered in the expression. This is likely to result in an
infinite loop. If test is enclosed in braces, variable substitutions are delayed until the expression is evaluated (before each loop iter-
ation), so changes in the variables will be visible. For an example, try the following script with and without the braces around $x<10:
set x 0
while {$x<10} {
puts "x is $x"
incr x
}
EXAMPLE
Read lines from a channel until we get to the end of the stream, and print them out with a line-number prepended:
set lineCount 0
while {[gets $chan line] >= 0} {
puts "[incr lineCount]: $line"
}
SEE ALSO
break(n), continue(n), for(n), foreach(n)
KEYWORDS
boolean value, loop, test, while
Tcl while(n)