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Top Forums UNIX for Dummies Questions & Answers Try to use awk or sed to get available disk space Post 302893886 by in2nix4life on Friday 21st of March 2014 12:49:31 PM
Old 03-21-2014
A bit long-winded, but here's an approach:

Code:
#!/bin/bash
#

# check that something was piped to the script
# by reading the actual pipe descriptor
if [ $(readlink /proc/$$/fd/0 | grep -c "^pipe:") == 1 ]
then
    # store the value that was piped to the script
    input=$(cat /proc/$$/fd/0)

    # extract the bytes and remove the commas
    sz=$(echo $input | awk '{gsub(/,/,"",$3); print $3}')

    # convert the bytes to gigabytes and compare if greater
    # than 2GBs
    getsize=$(echo "scale=0;${sz}/1024/1024/1024"|bc)
    if [ $getsize -gt 2 ]
    then
        echo "Current size is greater than the 2GB threshold."
    else
        echo "Current size is within range."
    fi
else
    echo "Nothing on the pipeline."
    exit 1
fi

# done
exit 0

echo "9 Dir(s) 6,611,517,440 bytes free" | ./chkSize.sh
Current size is greater than the 2GB threshold.

964ce7168ea7ce904696bdb1554bfa8b
 

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qmail-log(5)                                                    File Formats Manual                                                   qmail-log(5)

NAME
qmail-log - the qmail activity record DESCRIPTION
qmail-send prints a series of lines describing its activities. Each possible line is described below. STATUS
status: local l/L remote r/R ... qmail-send is waiting for l local deliveries and r remote deliveries. The concurrency limits are L and R. status: exiting qmail-send is done. FATAL PROBLEMS
alert: cannot start: ... qmail-send is unable to prepare itself for delivering messages; it is giving up. This normally indicates a serious configuration error, but it can be caused by a temporary lack of resources. alert: oh no! lost ... One of the other daemons has died. qmail-send will exit as soon as possible. SERIOUS PROBLEMS
alert: unable to append to bounce message... qmail-send is unable to record a permanent failure, usually because the disk is full. This is a very serious problem; qmail-send cannot proceed without recording the results. It will try again in ten seconds. alert: out of memory... qmail-send tried to allocate more memory and failed. It will try again in ten seconds. alert: unable to opendir... qmail-send is having trouble reading a file list from disk, usually because the system's file descriptor table is full, but possibly because permissions are set incorrectly. It will try again in ten seconds. alert: unable to switch back... qmail-send was sent SIGHUP, and it is unable to reenter the queue directory. This is a very serious problem; qmail-send cannot pro- ceed outside the queue directory. It will try again in ten seconds. alert: unable to reread... qmail-send was sent SIGHUP, but it is unable to read the new controls. It will continue operating with the original controls. MESSAGES
new msg m qmail-send is going to preprocess a queued message. The message number, m, is its disk inode number. After a message is removed from the queue, its number can be reused immediately. info msg m: bytes b from <s> qp q uid u Message m contains b bytes; its envelope sender is s; it was queued by a user with user ID u. q is a long-term queue identifier, the process ID of the qmail-queue that queued the message. bounce msg m qp q Message m had some delivery failures. The long-term queue identifier of the bounce (or double-bounce) message is q. triple bounce: discarding ... Message m had some delivery failures, but it is already a double-bounce message, so it must be thrown away. Triple-bounce messages do not exist. end msg m qmail-send is about to remove message m from the queue. DELIVERIES
starting delivery d: msg m to ... qmail-send is telling qmail-lspawn or qmail-rspawn to deliver message m to one recipient. The delivery number, d, starts at 1 and increases by 1 for each new delivery. delivery d: success: ... Delivery d was successful. delivery d: failure: ... Delivery d failed permanently. The message will bounce. delivery d: deferral: ... Delivery d failed temporarily. This recipient will be retried later. delivery d: report mangled, will defer There is a serious bug in qmail-lspawn or qmail-rspawn. This recipient will be retried later. WARNINGS
internal error: delivery report out of range qmail-lspawn or qmail-rspawn has supplied a report on a nonexistent delivery. This is a serious bug. qmail-clean unable to clean up ... For some reason qmail-clean is unable to remove the indicated file. It will try again later. trouble fsyncing ... qmail-send was unable to write to disk the results of preprocessing a queued message. It will try again later. trouble in select There is an operating system bug. trouble injecting bounce message... qmail-send was unable to queue a bounce message, usually because the disk is full. It will try again later. trouble marking ... qmail-send was unable to record the result of a successful or permanently unsuccessful delivery. This means that the delivery will be tried again later. trouble opening ... qmail-send was unable to open the list of local or remote recipients for a message. It will try again later. trouble reading ... Either qmail-send is unable to read a recipient list, or it is unable to read the envelope of a queued message, or it is out of mem- ory. Whatever it was doing, it will try again later. trouble writing to ... qmail-send was unable to preprocess a queued message, usually because the disk is full. It will try again later. unable to create ... qmail-send was unable to preprocess a queued message, usually because the disk is out of inodes. It will try again later. unable to open ... qmail-send is unable to read the envelope of a queued message for preprocessing. It will try again later. unable to start qmail-queue... qmail-send is unable to queue a bounce message, usually because the machine is almost out of memory. It will try again later. This can also be caused by incorrect settings of $QMAILQUEUE or errors in a program or script which $QMAILQUEUE points to. unable to stat ... qmail-send is unable to obtain information about a file that should exist. It will try again later. unable to unlink ... qmail-send is unable to remove a file. It will try again later. unable to utime ... qmail-send is about to exit, and it is unable to record on disk the next scheduled delivery time for a message. The message will be retried as soon as qmail-send is restarted. unknown record type in ... There is a serious bug in either qmail-queue or qmail-send. SEE ALSO
qmail-send(8) qmail-log(5)
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