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Top Forums Shell Programming and Scripting Cut line from file till the end Post 302535605 by ctsgnb on Friday 1st of July 2011 09:28:02 AM
Old 07-01-2011
Quote:
Originally Posted by Sanjay2121
hi

my original file /var/tmp/img-bkp1

head -6 /var/tmp/img-bkp1 >/var/tmp/used
grep -v -f /var/tmp/used /var/tmp/img-bkp1 >/var/tmp/unused.1
head -6 /var/tmp/unused.1 >/var/tmp/used
grep -v -f /var/tmp/used /var/tmp/unused.1 >/var/tmp/unused.2
head -6 /var/tmp/unused.2 > /var/tmp/used
grep -v -f /var/tmp/used /var/tmp/unused.2 >/var/tmp/unused.3

and so on

can you please tell me how put in loop so that file have left 0 line
Could you please tell us more about your final goal ?

a) How does the content of you input file look like ?
b) Why do you need lines 6 per 6 ?
c) What kind of processing do you run on them ?
d) What kind of output do you expect ?
 

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cachefslog(1M)						  System Administration Commands					    cachefslog(1M)

NAME
cachefslog - Cache File System logging SYNOPSIS
cachefslog [-f logfile | -h] cachefs_mount_point DESCRIPTION
The cachefslog command displays where CacheFS statistics are being logged. Optionally, it sets where CacheFS statistics are being logged, or it halts logging for a cache specified by cachefs_mount_point. The cachefs_mount_point argument is a mount point of a cache file system. All file systems cached under the same cache as cachefs_mount_point will be logged. OPTIONS
The following options are supported. You must be super-user to use the -f and -h options. -f logfile Specify the log file to be used. -h Halt logging. OPERANDS
cachefs_mount_point A mount point of a cache file system. USAGE
See largefile(5) for the description of the behavior of cachefslog when encountering files greater than or equal to 2 Gbyte ( 2**31 bytes). EXAMPLES
Example 1: Checking the Logging of a directory. The example below checks if the directory /home/sam is being logged: example% cachefslog /home/sam not logged: /home/sam Example 2: Changing the logfile. The example below changes the logfile of /home/sam to /var/tmp/samlog: example# cachefslog -f /var/tmp/samlog /home/sam /var/tmp/samlog: /home/sam Example 3: Verifying the change of a logfile. The example below verifies the change of the previous example: example% cachefslog /home/sam /var/tmp/samlog: /home/sam Example 4: Halting the logging of a directory. The example below halts logging for the /home/sam directory: example# cachefslog -h /home/sam not logged: /home/sam EXIT STATUS
The following exit values are returned: 0 success non-zero an error has occurred. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
cachefsstat(1M), cachefswssize(1M), cfsadmin(1M), attributes(5), largefile(5) DIAGNOSTICS
Invalid path It is illegal to specify a path within a cache file system. SunOS 5.10 7 Feb 1997 cachefslog(1M)
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