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Shell Programming and Scripting
sed command to replace a character at last
Post 302529012 by vgersh99 on Wednesday 8th of June 2011 10:54:21 AM
06-08-2011
Moderator
Quote:
I believe you meant to redirect AWK's stdout to "file". Otherwise, AWK will try to open ./file for reading, a pathname which does not exist after the rm.
As with any use of the unlink trick, should the last process holding open a file descriptor to the original "file" crash, you've lost the data (just a heads up for novices
).
Regards,
Alister
As with any use of the unlink trick, should the last process holding open a file descriptor to the original "file" crash, you've lost the data (just a heads up for novices
).Regards,
Alister
Code:
{ rm file; awk -F\| '{$(NF-1)="AAAA";$(NF-2)="AA";print}' OFS=\| > file; } < file|
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LEARN ABOUT DEBIAN
kumoctl
KUMOCTL(1) General Commands Manual KUMOCTL(1) NAME
kumoctl - show kumofs status SYNOPSIS
kumoctl address[:port=19750] command [options] DESCRIPTION
Show status of kumo-manager and send control commands to kumo-manager. COMMANDS
status show status of the cluster attach attach all new servers and start replace attach-noreplace attach all new servers detach detach all fault servers and start replace detach-noreplace detach all fault servers replace start replace without attach/detach full-replace start full-replace (repair consistency) backup [suffix=20090304] create backup with specified suffix enable-auto-replace enable auto replace disable-auto-replace disable auto replace STATUS
hash space timestamp The time that the list of attached kumo-servers is updated. It is updated when new kumo-server is added or existing kumo-server is down. attached node The list of attached kumo-servers. (active) is normal node and (fault) is fault node or recoverd but not re-attached node. not attached node The list of recognized but not-attached nodes. AUTO REPLACING
By default, you have to attach new kumo-servers manually using kumoctl command. If the auto replacing is enabled, new kumo-servers are attached automatically. This is experimental feature. EXAMPLE
$ kumoctl mgr1 status $ kumoctl mgr1 attach SEE ALSO
kumo-manager(1). kumoctl July 2009 KUMOCTL(1)