[patch] tail_n_head.patch

dd_rhelp.diff (text/plain), 4.48 KB, created by Craig Lawson on 2007-01-01 00:00:37 UTC

--- /usr/bin/dd_rhelp.original	2006-12-31 14:51:58.000000000 -0800
+++ /usr/bin/dd_rhelp	2006-12-31 15:26:26.000000000 -0800
@@ -518,7 +518,7 @@
 	[ "$DEBUG" == "on" ] && echo "BAD !" >&2
     fi
 	
-    path="$(dirname $(type -ap "$0" | "${TAIL}" -1))/dd_rescue"
+    path="$(dirname $(type -ap "$0" | "${TAIL}" -n 1))/dd_rescue"
     
     if [ -x "$path" ] ;then
 	version=$("$path" -V 2>&1 | grep "dd_rescue Version" | cut -f 3 -d " " |
@@ -664,7 +664,7 @@
           # new chunk doesn't overlap with current chunk
 	  # Iterate, put current chunk in $goodchunk.
 	  goodchunk="$(echo -en "$goodchunk\n$i")"
-	  parsechunk="$(echo "$parsechunk" | "${TAIL}" +2)"
+	  parsechunk="$(echo "$parsechunk" | "${TAIL}" -n +2)"
 	  continue
       fi
 
@@ -700,7 +700,7 @@
       if [ "$as_int" == "0" ] && [ "$ae_int" == "0" ]
       then
 	  # we forget about current chunk, and iterate.
-	  parsechunk=$(echo "$parsechunk" | "${TAIL}" +2)
+	  parsechunk=$(echo "$parsechunk" | "${TAIL}" -n +2)
 	  continue
       fi
       
@@ -709,7 +709,7 @@
       then
 	  # grow new chunk to englobe current chunk.
 	  arg_stop=$i_stop
-	  parsechunk=$(echo "$parsechunk" | "${TAIL}" +2)
+	  parsechunk=$(echo "$parsechunk" | "${TAIL}" -n +2)
 
 	  break; # we can break because chunk are sorted.
       fi
@@ -719,7 +719,7 @@
       then
 	  # grow new chunk to englobe current chunk.
 	  arg_start=$i_start
-	  parsechunk=$(echo "$parsechunk" | "${TAIL}" +2)
+	  parsechunk=$(echo "$parsechunk" | "${TAIL}" -n +2)
 	  continue; # new chunk might overlap more chunks
       fi
 
@@ -748,7 +748,7 @@
 	# finding last's chunk end.
 
 	if test "$chunk" ;then
-	   last_chunk=$(echo "$chunk" | "${TAIL}" -1 )
+	   last_chunk=$(echo "$chunk" | "${TAIL}" -n 1 )
 	   max_stop=$(echo "$last_chunk" | "${CUT}" -f 2 -d "-")
         else		   
            max_stop=0
@@ -797,7 +797,7 @@
 function swallow_last_summary()
 {
   # last summary of log (4 lines output by printreport())
-  last_logcontent=$("${CAT}" "$logfile" | "$tr" -d "\\r" | "$GREP" "$string" -A 3 | "${TAIL}" -4)
+  last_logcontent=$("${CAT}" "$logfile" | "$tr" -d "\\r" | "$GREP" "$string" -A 3 | "${TAIL}" -n 4)
   process_log "$last_logcontent"
 
   get_eof
@@ -811,7 +811,7 @@
 function get_last_chunk()
 {
     if test "$chunk"; then
-	last_chunk="$(echo "$chunk" | "${TAIL}" -1 )"
+	last_chunk="$(echo "$chunk" | "${TAIL}" -n 1 )"
 	echo "$last_chunk" | "${CUT}" -f 2 -d "-"
     else
 	echo 0
@@ -977,8 +977,8 @@
 
   while test "$parsing" 
   do
-    firstline="$(echo "$parsing" | "${HEAD}" -1)"
-    parsing="$(echo "$parsing" | "${TAIL}" +2)"
+    firstline="$(echo "$parsing" | "${HEAD}" -n 1)"
+    parsing="$(echo "$parsing" | "${TAIL}" -n +2)"
     
     xferd="$(echo "$firstline" | "${CUT}" -f 2 -d ":" | "${CUT}" -f 2 -d "=")"
     errxfer="$(echo "$firstline" | "${CUT}" -f 4 -d ":" | "${CUT}" -f 2 -d "=")"
@@ -1069,8 +1069,8 @@
     # chunk=""
     
     while test "$parsing" ;do
-	firstline="$(echo "$parsing" | "${HEAD}" -1)"
-	parsing="$(echo "$parsing" | "${TAIL}" +2)"
+	firstline="$(echo "$parsing" | "${HEAD}" -n 1)"
+	parsing="$(echo "$parsing" | "${TAIL}" -n +2)"
 	
 	ipos="$(echo $firstline | "${CUT}" -f 1 -d ":" | "${CUT}" -f 2 -d "=")"
 	xferd="$(echo $firstline | "${CUT}" -f 2 -d ":" | "${CUT}" -f 2 -d "=")"
@@ -1107,19 +1107,19 @@
 # loading into memory Summary info found in log file...
 #
     # line number of last save_log entry...
-    lnb_save=$("${CAT}" -n "$logfile" | "$tr" -d "\\r" | grep "chunk:" -A 2 | "${TAIL}" -3)
+    lnb_save=$("${CAT}" -n "$logfile" | "$tr" -d "\\r" | grep "chunk:" -A 2 | "${TAIL}" -n 3)
     
 
     if test "$lnb_save" ;then
-	lnb_save=$(echo $lnb_save | "${HEAD}" -1 | cut -f 1 -d " ")
+	lnb_save=$(echo $lnb_save | "${HEAD}" -n 1 | cut -f 1 -d " ")
 
-	end_log="$(cat "$logfile" | "$tr" -d "\\r" | "${TAIL}" "+$lnb_save")"
+	end_log="$(cat "$logfile" | "$tr" -d "\\r" | "${TAIL}" -n "+$lnb_save")"
 
-	last_lines=$(echo "$end_log" | grep "chunk:" -A 2 | "${TAIL}" -3)
+	last_lines=$(echo "$end_log" | grep "chunk:" -A 2 | "${TAIL}" -n 3)
 	
-	log=$(echo "$last_lines" | "$GREP" "chunk" | "${TAIL}" -1 )
-	log1=$(echo "$last_lines" | "$GREP" "logcontent" | "${TAIL}" -1 )
-	log2=$(echo "$last_lines" | "$GREP" "eof" | "${TAIL}" -1 )
+	log=$(echo "$last_lines" | "$GREP" "chunk" | "${TAIL}" -n 1 )
+	log1=$(echo "$last_lines" | "$GREP" "logcontent" | "${TAIL}" -n 1 )
+	log2=$(echo "$last_lines" | "$GREP" "eof" | "${TAIL}" -n 1 )
 	
 	if test "$log" && test "$log1" && test "$log2" ;then
 	    chunk="$(echo "$log" | "${CUT}" -f 2- -d ":" | "${TR}" ":" "\n")"