Shell Programming and Scripting

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#!/bin/bash
#
#	Variables
#
	TMP="/tmp/dd.tmp~"
	SOURCE="/home/sea/net/dls/parabola-2015.11.11-dual.iso"
	TARGET="/dev/sdc"
	GREP=\grep
	AWK=\gawk
	SED=\sed
	LC_ALL=C
	opts_passed="status=progress"
#
#	Functions
#
	
	transfered_bytes() { #
	# Parses the tempfile and prints the bytes transfered
	# tempfile is similar garabe/hexdump as a curl transfer rate
		value="$(
			$AWK 	-vRS=$'\r' \
				'END{NR=1}END {print $1}' \
				"$TMP" | tail -n1
			)"
		printf '%s' "$value" | $SED s,"[(|)]","",g
	}
	write_dd() { #
	# Starts dd, prints the exit status
	# syncs device if required
		dd $opts_passed \
			if="$SOURCE" \
			of="$TARGET" \
			2>"$TMP"
	 	printf $? > "$TMP"
	 	sync
	}
#
#	Action
#
	>$TMP		# Clear temp file
	write_dd &	# Start job in background
	PID=$!		# Get PID
	
	while ps $PID 2>/dev/zero 1>/dev/zero
	do 	# Request data & print it
		echo "Bytes transfered: $(transfered_bytes)"
		sleep 1 
	done
#
#	Clear
#
	LC_ALL=""

0 /home/sea/net/dls # /home/sea/prjs/tui/bin/tui-dd parabola-2015.11.11-dual.iso /dev/sdc
# | Starting job, please wait...                                                                        [  ∞   ]   | #
 -- **** EMPTY $CUR **** -- 
# | DBG::( ,) -- Written  /530 MB of parabola-2015.11.11-dual.iso to /dev/sdc           [==             ][ 1.79% ] | # -- **** EMPTY $CUR **** -- 
# | DBG::( ,) -- Written  /530 MB of parabola-2015.11.11-dual.iso to /dev/sdc           [==             ][ 1.79% ] | # -- **** EMPTY $CUR **** -- 
# | DBG::( ,) -- Written  /530 MB of parabola-2015.11.11-dual.iso to /dev/sdc           [==             ][ 1.79% ] | # -- **** EMPTY $CUR **** -- 
# | DBG::( ,) -- Written  /530 MB of parabola-2015.11.11-dual.iso to /dev/sdc           [==             ][ 1.79% ] | #^C

	while 	[ ! "" = "$(ps|$GREP -v tui|$GREP dd|$AWK '{print $1}')" ]
		sleep 0.7
	do 	
		# Variables
		MB="$(transfered_mb)"		# Get data from tempfile, slightly modified 
		CUR="$(transfered_bytes)"	# Get data from tempfile, the same in both scripts
		
		[ -z "$(echo $CUR)" ] && \
			echo " -- **** EMPTY \$CUR **** -- " && \
			hexdump -CL "$TMP"
		
		# Prepare displayed string to user
		#TXT="$(eval_gettext 'Written $MB/$MAX_MB of $SRC to $TARGET')"
		TXT="DBG::($MB,$CUR) -- Written $MB/$MAX_MB of $SRC to $TARGET"
		
		# Visual output
		tui-progress -lbm ${MAX:-10} -c ${CUR:-1} "$TXT"
		
	done

+ SOURCE=parabola-2015.11.11-dual.iso
+ TARGET=/dev/sdc
+ TMP=/root/.cache/tui.tmp~
+ MAX=0
+ SRC=parabola-2015.11.11-dual.iso
++ eval_gettext 'Writing $SRC to $TARGET...'
++ gettext 'Writing $SRC to $TARGET...'
+++ envsubst --variables 'Writing $SRC to $TARGET...'
++ export PATH SRC TARGET
++ envsubst 'Writing $SRC to $TARGET...'
+ TR_MSG_STRING_WORK='Writing parabola-2015.11.11-dual.iso to /dev/sdc...'
++ eval_gettext 'Written $SRC to $TARGET'
++ gettext 'Written $SRC to $TARGET'
+++ envsubst --variables 'Written $SRC to $TARGET'
++ export PATH SRC TARGET
++ envsubst 'Written $SRC to $TARGET'
+ TR_MSG_STRING_DONE='Written parabola-2015.11.11-dual.iso to /dev/sdc'
++ eval_gettext 'Could not get type of "$SOURCE"!'
++ gettext 'Could not get type of "$SOURCE"!'
+++ envsubst --variables 'Could not get type of "$SOURCE"!'
++ export PATH SOURCE
++ envsubst 'Could not get type of "$SOURCE"!'
+ TR_MSG_WRONG_TYPE='Could not get type of "parabola-2015.11.11-dual.iso"!'
++ gettext 'Starting job, please wait...'
+ TR_MSG_STARTING='Starting job, please wait...'
+ export LC_ALL=C
+ LC_ALL=C
+ '[' -f /root/.cache/tui.tmp~ ']'
+ '[' -z ' ' ']'
+ echo 'status=progress '
+ grep -q bs=
+ opts_passed+=' bs=4M'
+ '[' /dev = /dev ']'
+ '[' 0 -ne 0 ']'
+ tui-printline -rS 2 'Starting job, please wait...'
+ PID=27875g job, please wait...                                                                        [  ∞   ]   | #
+ write_dd
+ dd status=progress bs=4M if=parabola-2015.11.11-dual.iso of=/dev/sdc
++ get_size parabola-2015.11.11-dual.iso
++ '[' -z parabola-2015.11.11-dual.iso ']'
++ item=parabola-2015.11.11-dual.iso
++ output=
++ '[' -b parabola-2015.11.11-dual.iso ']'
++ '[' -d parabola-2015.11.11-dual.iso ']'
++ '[' -f parabola-2015.11.11-dual.iso ']'
+++ of_file parabola-2015.11.11-dual.iso
+++ ls -l parabola-2015.11.11-dual.iso
+++ gawk '{print $5}'
++ output=555745280
++ echo 555745280
++ return 0
+ MAX=555745280
+ '[' -z 555745280 ']'
++ bytes2mb 555745280
++ echo 555745280
++ gawk '{print int ($1 / 1024 / 1024),"MB"}'
+ MAX_MB='530 MB'
++ ps
++ grep -v tui
++ grep dd
++ gawk '{print $1}'
+ '[' '!' '' = '27497
27877' ']'
+ sleep 0.7
++ transfered_mb
+++ gawk $'-vRS=\r' 'END{NR=1}END {print $3,$4}' /root/.cache/tui.tmp~
+++ tail -n1
++ value=' '
++ printf %s ' '
++ sed 's,[(|)],,g'
+ MB=' '
++ transfered_bytes
+++ gawk $'-vRS=\r' 'END{NR=1}END {print $1}' /root/.cache/tui.tmp~
+++ tail -n1
++ value=
++ printf %s ''
++ sed 's,[(|)],,g'
+ CUR=
++ echo
+ '[' -z '' ']'
+ echo ' -- **** EMPTY $CUR **** -- '
 -- **** EMPTY $CUR **** -- 
+ hexdump -CL /root/.cache/tui.tmp~
+ TXT='DBG::( ,) -- Written  /530 MB of parabola-2015.11.11-dual.iso to /dev/sdc'
+ set -x
+ tui-progress -lbm 555745280 -c 1 'DBG::( ,) -- Written  /530 MB of parabola-2015.11.11-dual.iso to /dev/sdc'
# | DBG::( ,) -- Written  /530 MB of parabola-2015.11.11-dual.iso to /dev/sdc           [==             ][ 1.79% ] | #+ echo

0 /home/sea/net/dls # sh -x /home/sea/prjs/tui/bin/mini-dd.sh 
+ TMP=/tmp/dd.tmp~
+ SOURCE=/home/sea/net/dls/parabola-2015.11.11-dual.iso
+ TARGET=/dev/sdc
+ GREP=grep
+ AWK=gawk
+ SED=sed
+ LC_ALL=C
+ opts_passed=status=progress
+ PID=30287
+ ps 30287
+ write_dd
+ dd status=progress if=/home/sea/net/dls/parabola-2015.11.11-dual.iso of=/dev/sdc
++ transfered_bytes
+++ gawk $'-vRS=\r' 'END{NR=1}END {print $1}' /tmp/dd.tmp~
+++ tail -n1
++ value=
++ printf %s ''
++ sed 's,[(|)],,g'
+ echo 'Bytes transfered: '
Bytes transfered: 
+ hexdump -CL /tmp/dd.tmp~
+ sleep 1
+ ps 30287
++ transfered_bytes
+++ gawk $'-vRS=\r' 'END{NR=1}END {print $1}' /tmp/dd.tmp~
+++ tail -n1
++ value=6493696
++ printf %s 6493696
++ sed 's,[(|)],,g'
+ echo 'Bytes transfered: 6493696'
Bytes transfered: 6493696
+ hexdump -CL /tmp/dd.tmp~
00000000  0d 36 34 39 33 36 39 36  20 42 79 74 65 73 20 28  |.6493696 Bytes (|
00000010  36 2e 35 20 4d 42 29 20  6b 6f 70 69 65 72 74 2c  |6.5 MB) kopiert,|
00000020  20 31 2e 30 30 30 30 30  30 20 73 2c 20 36 2e 35  | 1.000000 s, 6.5|
00000030  20 4d 42 2f 73                                    | MB/s|
00000035
+ sleep 1
+ ps 30287
++ transfered_bytes
+++ gawk $'-vRS=\r' 'END{NR=1}END {print $1}' /tmp/dd.tmp~
+++ tail -n1
++ value=12984832
++ printf %s 12984832
++ sed 's,[(|)],,g'
+ echo 'Bytes transfered: 12984832'
Bytes transfered: 12984832
+ hexdump -CL /tmp/dd.tmp~
00000000  0d 36 34 39 33 36 39 36  20 42 79 74 65 73 20 28  |.6493696 Bytes (|
00000010  36 2e 35 20 4d 42 29 20  6b 6f 70 69 65 72 74 2c  |6.5 MB) kopiert,|
00000020  20 31 2e 30 30 30 30 30  30 20 73 2c 20 36 2e 35  | 1.000000 s, 6.5|
00000030  20 4d 42 2f 73 0d 31 32  39 38 34 38 33 32 20 42  | MB/s.12984832 B|
00000040  79 74 65 73 20 28 31 33  20 4d 42 29 20 6b 6f 70  |ytes (13 MB) kop|
00000050  69 65 72 74 2c 20 32 2e  30 30 30 36 30 33 20 73  |iert, 2.000603 s|
00000060  2c 20 36 2e 35 20 4d 42  2f 73                    |, 6.5 MB/s|
0000006a
+ sleep 1
<....>
+ hexdump -CL /tmp/dd.tmp~
00000000  0d 36 35 35 30 30 31 36  20 42 79 74 65 73 20 28  |.6550016 Bytes (|
00000010  36 2e 36 20 4d 42 29 20  6b 6f 70 69 65 72 74 2c  |6.6 MB) kopiert,|
00000020  20 31 2e 30 30 30 34 31  32 20 73 2c 20 36 2e 35  | 1.000412 s, 6.5|
00000030  20 4d 42 2f 73 0d 31 32  39 33 35 36 38 30 20 42  | MB/s.12935680 B|
00000040  79 74 65 73 20 28 31 33  20 4d 42 29 20 6b 6f 70  |ytes (13 MB) kop|
00000050  69 65 72 74 2c 20 32 2e  30 30 30 34 34 31 20 73  |iert, 2.000441 s|
00000060  2c 20 36 2e 35 20 4d 42  2f 73 0d 31 39 32 38 34  |, 6.5 MB/s.19284|
00000070  34 38 30 20 42 79 74 65  73 20 28 31 39 20 4d 42  |480 Bytes (19 MB|
00000080  29 20 6b 6f 70 69 65 72  74 2c 20 33 2e 30 30 30  |) kopiert, 3.000|
00000090  37 38 37 20 73 2c 20 36  2e 34 20 4d 42 2f 73 0d  |787 s, 6.4 MB/s.|
000000a0  32 35 36 38 32 34 33 32  20 42 79 74 65 73 20 28  |25682432 Bytes (|
000000b0  32 36 20 4d 42 29 20 6b  6f 70 69 65 72 74 2c 20  |26 MB) kopiert, |
000000c0  34 2e 30 30 31 31 33 37  20 73 2c 20 36 2e 34 20  |4.001137 s, 6.4 |
000000d0  4d 42 2f 73 0d 33 31 39  32 30 36 34 30 20 42 79  |MB/s.31920640 By|
000000e0  74 65 73 20 28 33 32 20  4d 42 29 20 6b 6f 70 69  |tes (32 MB) kopi|
000000f0  65 72 74 2c 20 35 2e 30  30 31 32 39 39 20 73 2c  |ert, 5.001299 s,|
00000100  20 36 2e 34 20 4d 42 2f  73 0d 33 38 32 36 35 33  | 6.4 MB/s.382653|
00000110  34 34 20 42 79 74 65 73  20 28 33 38 20 4d 42 29  |44 Bytes (38 MB)|
00000120  20 6b 6f 70 69 65 72 74  2c 20 36 2e 30 30 31 38  | kopiert, 6.0018|
00000130  31 30 20 73 2c 20 36 2e  34 20 4d 42 2f 73 0d 34  |10 s, 6.4 MB/s.4|
00000140  34 36 39 36 30 36 34 20  42 79 74 65 73 20 28 34  |4696064 Bytes (4|
00000150  35 20 4d 42 29 20 6b 6f  70 69 65 72 74 2c 20 37  |5 MB) kopiert, 7|
00000160  2e 30 30 31 38 32 35 20  73 2c 20 36 2e 34 20 4d  |.001825 s, 6.4 M|
00000170  42 2f 73 0d 35 31 32 31  32 38 30 30 20 42 79 74  |B/s.51212800 Byt|
00000180  65 73 20 28 35 31 20 4d  42 29 20 6b 6f 70 69 65  |es (51 MB) kopie|
00000190  72 74 2c 20 38 2e 30 30  32 31 31 35 20 73 2c 20  |rt, 8.002115 s, |
000001a0  36 2e 34 20 4d 42 2f 73  0d 35 37 37 34 35 39 32  |6.4 MB/s.5774592|
000001b0  30 20 42 79 74 65 73 20  28 35 38 20 4d 42 29 20  |0 Bytes (58 MB) |
000001c0  6b 6f 70 69 65 72 74 2c  20 39 2e 30 30 32 32 34  |kopiert, 9.00224|
000001d0  37 20 73 2c 20 36 2e 34  20 4d 42 2f 73 0d 36 34  |7 s, 6.4 MB/s.64|
000001e0  32 33 38 30 38 30 20 42  79 74 65 73 20 28 36 34  |238080 Bytes (64|
000001f0  20 4d 42 29 20 6b 6f 70  69 65 72 74 2c 20 31 30  | MB) kopiert, 10|
00000200  2e 30 30 32 35 38 31 20  73 2c 20 36 2e 34 20 4d  |.002581 s, 6.4 M|
00000210  42 2f 73 0d 36 39 32 30  32 34 33 32 20 42 79 74  |B/s.69202432 Byt|
00000220  65 73 20 28 36 39 20 4d  42 29 20 6b 6f 70 69 65  |es (69 MB) kopie|
00000230  72 74 2c 20 31 31 2e 30  32 31 31 34 38 20 73 2c  |rt, 11.021148 s,|
00000240  20 36 2e 33 20 4d 42 2f  73 0d 37 34 30 35 32 30  | 6.3 MB/s.740520|
00000250  39 36 20 42 79 74 65 73  20 28 37 34 20 4d 42 29  |96 Bytes (74 MB)|
00000260  20 6b 6f 70 69 65 72 74  2c 20 31 32 2e 30 32 31  | kopiert, 12.021|
00000270  35 32 33 20 73 2c 20 36  2e 32 20 4d 42 2f 73 0d  |523 s, 6.2 MB/s.|
00000280  37 38 32 34 34 38 36 34  20 42 79 74 65 73 20 28  |78244864 Bytes (|
00000290  37 38 20 4d 42 29 20 6b  6f 70 69 65 72 74 2c 20  |78 MB) kopiert, |
000002a0  31 33 2e 30 32 31 35 32  34 20 73 2c 20 36 2e 30  |13.021524 s, 6.0|
000002b0  20 4d 42 2f 73 0d 38 33  34 34 30 31 32 38 20 42  | MB/s.83440128 B|
000002c0  79 74 65 73 20 28 38 33  20 4d 42 29 20 6b 6f 70  |ytes (83 MB) kop|
000002d0  69 65 72 74 2c 20 31 34  2e 30 32 31 37 35 31 20  |iert, 14.021751 |
000002e0  73 2c 20 36 2e 30 20 4d  42 2f 73 0d 38 38 33 37  |s, 6.0 MB/s.8837|
000002f0  39 39 30 34 20 42 79 74  65 73 20 28 38 38 20 4d  |9904 Bytes (88 M|
00000300  42 29 20 6b 6f 70 69 65  72 74 2c 20 31 35 2e 30  |B) kopiert, 15.0|
00000310  32 32 31 34 31 20 73 2c  20 35 2e 39 20 4d 42 2f  |22141 s, 5.9 MB/|
00000320  73 0d 39 33 32 35 38 32  34 30 20 42 79 74 65 73  |s.93258240 Bytes|
00000330  20 28 39 33 20 4d 42 29  20 6b 6f 70 69 65 72 74  | (93 MB) kopiert|
00000340  2c 20 31 36 2e 30 32 32  37 33 34 20 73 2c 20 35  |, 16.022734 s, 5|
00000350  2e 38 20 4d 42 2f 73 0d  39 38 33 37 38 32 34 30  |.8 MB/s.98378240|
00000360  20 42 79 74 65 73 20 28  39 38 20 4d 42 29 20 6b  | Bytes (98 MB) k|
00000370  6f 70 69 65 72 74 2c 20  31 37 2e 30 35 31 31 35  |opiert, 17.05115|
00000380  36 20 73 2c 20 35 2e 38  20 4d 42 2f 73           |6 s, 5.8 MB/s|
0000038d
+ sleep 1
^C

grep -A9 'write_dd()'  *dd*

mini-dd.sh:	write_dd() { #
mini-dd.sh-	# Starts dd, prints the exit status
mini-dd.sh-	# syncs device if required
mini-dd.sh-		dd $opts_passed \
mini-dd.sh-			if="$SOURCE" \
mini-dd.sh-			of="$TARGET" \
mini-dd.sh-			2>"$TMP"
mini-dd.sh-	 	printf $? > "$TMP"
mini-dd.sh-	 	sync
mini-dd.sh-	}
--
tui-dd:	write_dd() { #
tui-dd-	# Starts dd, prints the exit status
tui-dd-	# syncs device if required
tui-dd-		dd $opts_passed \
tui-dd-			if="$SOURCE" \
tui-dd-			of="$TARGET" \
tui-dd-			2>"$TMP"
tui-dd-	 	printf $? > "$TMP"
tui-dd-	 	sync
tui-dd-	}

grep 'write_dd \&'  *dd*
mini-dd.sh:	write_dd &	# Start job in background
tui-dd:	write_dd &

	transfered_bytes() { #
	# Parses the tempfile and prints the bytes transfered
	# tempfile is similar garabe/hexdump as a curl transfer rate
		value="$(
			$AWK 	-vRS=$'\r' \
				'END{NR=1}END {print $1}' \
				"$TMP" | tail -n1
			)"
		>"$TMP"
		printf '%s' "$value" | $SED s,"[(|)]","",g
	}

grep '_bytes)'  *dd*
mini-dd.sh:		echo "Bytes transfered: $(transfered_bytes)"
tui-dd:		CUR="$(transfered_bytes)"	# Get data from tempfile