I probably miss something fundamental here.
I want to rename a bunch of files in subdirectories (that might contain white spaces) with names that are related.
I thought following could do the job:
Now to be able to see the output I generate an echo of the substitutes:
Interestingly echo {} equals echo {} | sed -e 's/0/1/g'.
It looks like the substitution of {} is somehow not done in the order I expected.
If I try the pipelining directly (without ${..}) it generates the right substitution (but for my purpose not usable):
Thank you very much for any idea pointing out my mistake,
best,
blued
I am in the process of writing a script to change the grub password in the grub.conf file. I thought I had it figured out, but am running into an a problem I can't put my finger on.
Command I am running when I find that the grub.conf file contains "password --md5".
sed... (1 Reply)
Hi,
I want to write the shell script to change multple file name (the file name is get from DB)
e.g. cp db1.txt file1_new.txt
cp db2.txt file2_new.txt
cp db3.txt file3_new.txt
I have write the script like this:
VAR=`sqlplus -s $LOGON @<<ENDOFTEXT
set termout off
... (0 Replies)
Hello All,
Is there a way to make exec do a couple of operations on a single input from find?
For example,
find . -type d -exec ls -l "{}" ";"
I would like to give the result of each "ls -l" in the above to a wc. Is that possible?
I want to ls -l | wc -l inside... (1 Reply)
I hv a file --am executing a script which is giving me unexpected results
COntents of file:
f1
CMT_AP1_CONT:/opt/sybase/syboc125:150:ASE12_5::Y:UX:
CMT_AP1:/opt/sybase/syboc125:150:ASE12_5::Y:UX
f1.tmp
CMT_AP1_CONT:/opt/sybase/syboc125:150:ASE12_5::Y:UX:... (2 Replies)
Hello,
I am a linux newbe. I want to install a program. I can download it only with wget command from internet.
As far as i know this wget command does not transfer the exacutable flags.
Because of that i wanted to find all configure files and change their mod to 744.
I found this... (1 Reply)
Hi Friends,
Please help me to sort out this problem, I am running this in centos o/s and whenever I run this script I am getting "find: missing argument to `-exec' " but when I run the same code in the command line I didn't find any problem. I am using perl script to run this ... (2 Replies)
Hello,
And when you think you know the basics of something, UNIX in this case, something like what I will describe below comes along....
On a Linux system, a "typical" directory with some files. Say 20.
I do:
> ls | sort > mylisting
Now when I:
> vi mylisting
There is mylisting... (13 Replies)
Guys,
I want to find the log files greather than 23 days and i want to perform 2 things here.
one is to list the files and second is to gzip the files. hope this can be done using sh -c option. but not sure the exact command.
find . -name "*.log" -mtime +23 -exec ls -la {} \;
... (5 Replies)
Hello,
Giving those commands:
cat > myfile
1
2
3
^D
cat myfile | awk '{ s=s+$1 ; print s}'
The output is:
1
3
6
It seems like this command iterates each time on a different row so $1 is the first field of each row.. But what caused it to refer to each row ?.
What I mean... (3 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 LINUX
pid
pid(n) Tcl Built-In Commands pid(n)__________________________________________________________________________________________________________________________________________________NAME
pid - Retrieve process identifiers
SYNOPSIS
pid ?fileId?
_________________________________________________________________DESCRIPTION
If the fileId argument is given then it should normally refer to a process pipeline created with the open command. In this case the pid
command will return a list whose elements are the process identifiers of all the processes in the pipeline, in order. The list will be
empty if fileId refers to an open file that is not a process pipeline. If no fileId argument is given then pid returns the process identi-
fier of the current process. All process identifiers are returned as decimal strings.
EXAMPLE
Print process information about the processes in a pipeline using the SysV ps program before reading the output of that pipeline:
set pipeline [open "| zcat somefile.gz | grep foobar | sort -u"]
# Print process information
exec ps -fp [pid $pipeline] >@stdout
# Print a separator and then the output of the pipeline
puts [string repeat - 70]
puts [read $pipeline]
close $pipeline
SEE ALSO
exec(n), open(n)
KEYWORDS
file, pipeline, process identifier
Tcl 7.0 pid(n)