Finding PID of a process using variable substituition
Hi All,
Am copying mulitple files in a directory in names File0,File1,File2 etc.
I need to print separately the PID of these copies using File names.
Code:
for((i=0;i<5;i++))
do
mypid=`ps aux | awk '/File$i/ && !/awk/ { print $2 }'`
echo PID is $mypid
done
It printed nothing. Thinking "File$i" is not found. Am i right? Is there a way to find the PID of a process using variable substituition? If not, how it cud be achieved?
FYI,I got the PID of FIle0 or FIle1 if i use its name specifically like,
Code:
mypid=`ps aux | awk '/File0/ && !/awk/ { print $2 }'`
echo PID is $mypid
Can some one please tell me how to find out the proccess ID that is holding up a file.
I am attempting to remove a file and I am getting a message stating that it is busy.
i.e
rm filename
filename: 777 mode ? (y/n) y
rm: filename not removed. Text file busy
Thanks in advance. (1 Reply)
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Thanks a lot in advance.
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LEARN ABOUT HPUX
lif
lif(4) Kernel Interfaces Manual lif(4)NAME
lif - logical interchange format description
DESCRIPTION
LIF (Logical Interchange Format) is a Hewlett-Packard standard mass-storage format that can be used for interchange of files among various
HP computer systems. A LIF volume contains a header (identifying it as a LIF volume) and a directory that defines the contents (i.e.
files) of the volume. The size of the directory is fixed when the volume is initialized (see lifinit(1)) and sets an upper bound on the
number of files that can be created on the volume.
HP-UX contains a set of utilities (referred to as lif*(1)) that can be used to:
o Initialize a LIF volume (i.e. create a header and an empty directory),
o Copy files to and from LIF volumes,
o List the contents of LIF volumes,
o Remove LIF files,
o Rename LIF files.
The lif*(1) utilities are the only utilities within HP-UX where the internal structure of a LIF volume is known. To the rest of HP-UX, a
LIF volume is simply a file containing some unspecified data. The term LIF volume should in no way be confused with the HP-UX notion of a
file system volume or mountable volume.
LIF utilities on HP-UX currently support three file types, ASCII (1), BINARY (-2) and BIN (-23951).
Three copying modes are associated with these file types:
If the copying mode is
ASCII and an HP-UX file is being copied to a LIF volume, the utility strips the trailing LF (line-feed) character, and
inserts two bytes of record length in front of each record. These records are then written to a LIF-formatted medium.
When copying a LIF ASCII file to HP-UX the two-byte record length is stripped and a trailing LF is appended. These
records are then written to the destination. In this mode of copying, the length of the file is preserved. The default
file type for this mode of copying is ASCII (1).
If the copying mode is
and an HP-UX file is being copied to a LIF volume, the utility simply inserts two bytes for record length in front of each
1-Kbyte record. A trailing fractional block has a count reflecting the number of bytes in that block. No interpretation
is placed on the content of the records. These records are then written to a LIF-format medium. When copying a LIF file
to an HP-UX file in copying mode, the record lengths are stripped and the content of records is directly written to the
destination. In this mode of copying, the length of the binary file is preserved. The default file type for this mode of
copying is (-2).
If the copying mode is
RAW, and an HP-UX file is being copied to a LIF volume, the utility simply copies the raw data to the destination. File
sizes that are not integer multiples of 256 bytes are padded with nulls to the next higher multiple. Therefore, When
copying a LIF file to an HP-UX file in RAW mode, the information is copied directly without any interpretation placed on
the content of the source. The default file type for this mode of copying is (-23951).
A LIF volume can be created on any HP-UX file (either regular disk file or device special file) that supports random access via (see
lseek(2)). lif*(1) utilities. See lifinit(1) for details. Within a LIF volume, individual files are identified by 1- to 10-character
file names. File names can consist of uppercase alphanumeric characters (A through Z, 0 through 9) and the underscore character (_). The
first character of a LIF file name must be a letter (A through Z). The lif*(1) utilities accept any file name (including illegal file
names generated on other systems), but can only create legal names. This means that files whose names contain lowercase letters can be
read but not created.
LIF file names are specified to the lif*(1) utilities by concatenating the HP-UX path name for the LIF volume followed by the LIF file
name, separating the two with a colon For example:
specifies LIF file accessed via HP-UX device special file
specifies LIF file within HP-UX disk file
Note that this file-naming convention is applicable only for use as arguments to the lif*(1) utilities, and does not constitute valid path
naming for any other use within the HP-UX operating system.
lif*(1) utilities.
SEE ALSO lifcp(1), lifinit(1), lifls(1), lifrename(1), lifrm(1).
lif(4)