How to install .gz file

a gz file is a compressed archive. How you install it depends on what 'wicrawl' is. You can unpack the gz file with the archive manager. What you need should be inside it. Have you looked at the instructions on the site from which you got the file?

Please refer to wicrawl project which has a wiki and faq.
http://midnightresearch.com/wiki/index.php/Wicrawl#Ubuntu.2FDebian.28.3F.29_Compiling
http://midnightresearch.com/wiki/index.php/FAQ

http://blog.itgossips.com/tech/wicrawl-how-to-and-tutorial/

it gives followin error

balkrish@Ohmylove:~$ gunzip wicrawl-*.tgz
gzip: wicrawl-*.tgz: No such file or directory
balkrish@Ohmylove:~$ tar xf wicrawl-*.tar
tar: wicrawl-*.tar: Cannot open: No such file or directory
tar: Error is not recoverable: exiting now

It give following error

administrator@105:~/wicrawl-0.4a$ make
make[1]: Entering directory `/home/administrator/wicrawl-0.4a/util'
Makefile:25: .deps: No such file or directory
gcc -g -Wall -I../include -I. -MM *.c > .deps
make[1]: Leaving directory `/home/administrator/wicrawl-0.4a/util'
make[1]: Entering directory `/home/administrator/wicrawl-0.4a/util'
rm -f libutil.a errlib.o util.o ~* .deps
make[1]: Leaving directory `/home/administrator/wicrawl-0.4a/util'
make[1]: Entering directory `/home/administrator/wicrawl-0.4a/discovery'
Makefile:52: .deps: No such file or directory
gcc -g -Wall -I../include -I. -MM *.c > .deps
make[1]: Leaving directory `/home/administrator/wicrawl-0.4a/discovery'
make[1]: Entering directory `/home/administrator/wicrawl-0.4a/discovery'
rm -f apcore base64.o discovery.o version.o hash.o parse2.o ../util/libutil.a linux.o ~* .deps
make[1]: Leaving directory `/home/administrator/wicrawl-0.4a/discovery'
make[1]: Entering directory `/home/administrator/wicrawl-0.4a/plugins'
make[2]: Entering directory `/home/administrator/wicrawl-0.4a/plugins/aircrack-wep-cracking/aircrack-ng-0.9.1'
rm -f aireplay-ng airodump-ng airtun-ng aircrack-ng airdecap-ng packetforge-ng ivstools kstats makeivs aircrack-ng-opt-prof_gen aircrack-ng-opt aircrack-ng-opt-prof prof/*
make[2]: Leaving directory `/home/administrator/wicrawl-0.4a/plugins/aircrack-wep-cracking/aircrack-ng-0.9.1'
make[2]: Entering directory `/home/administrator/wicrawl-0.4a/plugins/cowpatty-wpa-psk-bruteforce/cowpatty'
rm -f md5.o sha1.o utils.o cowpatty.o genpmk.o cowpatty genpmk *~
make[2]: Leaving directory `/home/administrator/wicrawl-0.4a/plugins/cowpatty-wpa-psk-bruteforce/cowpatty'
make[2]: Entering directory `/home/administrator/wicrawl-0.4a/plugins/cowpatty-wpa-psk-bruteforce/cowpatty-fpga/picod'
rm -f *.o *.core picod picoc listflash
make[2]: Leaving directory `/home/administrator/wicrawl-0.4a/plugins/cowpatty-wpa-psk-bruteforce/cowpatty-fpga/picod'
make[2]: Entering directory `/home/administrator/wicrawl-0.4a/plugins/cowpatty-wpa-psk-bruteforce/cowpatty-fpga'
rm -f md5.o sha1.o utils.o cowpatty.o genpmk.o fpga.o picod/libpicod.o cowpatty genpmk *~
make[2]: Leaving directory `/home/administrator/wicrawl-0.4a/plugins/cowpatty-wpa-psk-bruteforce/cowpatty-fpga'
make[2]: Entering directory `/home/administrator/wicrawl-0.4a/plugins/pickupline/pul'
rm -f *.o pul
make[2]: Leaving directory `/home/administrator/wicrawl-0.4a/plugins/pickupline/pul'
make[1]: Leaving directory `/home/administrator/wicrawl-0.4a/plugins'
make[1]: Entering directory `/home/administrator/wicrawl-0.4a/util/dhcp'
No build directory for linux-2.2 - please run ./configure.
make[1]: Leaving directory `/home/administrator/wicrawl-0.4a/util/dhcp'
make[1]: Entering directory `/home/administrator/wicrawl-0.4a/util'
Makefile:25: .deps: No such file or directory
gcc -g -Wall -I../include -I. -MM *.c > .deps
make[1]: Leaving directory `/home/administrator/wicrawl-0.4a/util'
make[1]: Entering directory `/home/administrator/wicrawl-0.4a/util'
make[1]: `.deps' is up to date.
make[1]: Leaving directory `/home/administrator/wicrawl-0.4a/util'
make[1]: Entering directory `/home/administrator/wicrawl-0.4a/discovery'
Makefile:52: .deps: No such file or directory
gcc -g -Wall -I../include -I. -MM *.c > .deps
make[1]: Leaving directory `/home/administrator/wicrawl-0.4a/discovery'
make[1]: Entering directory `/home/administrator/wicrawl-0.4a/discovery'
make[1]: `.deps' is up to date.
make[1]: Leaving directory `/home/administrator/wicrawl-0.4a/discovery'
make[1]: Entering directory `/home/administrator/wicrawl-0.4a/util'
cc -g -Wall -I../include -I. -c -o errlib.o errlib.c
errlib.c: In function ‘warn’:
errlib.c:21:3: warning: format not a string literal and no format arguments
cc -g -Wall -I../include -I. -c -o util.o util.c
ar r libutil.a errlib.o util.o
ar: creating libutil.a
make[1]: Leaving directory `/home/administrator/wicrawl-0.4a/util'
make[1]: Entering directory `/home/administrator/wicrawl-0.4a/plugins'
make[2]: Entering directory `/home/administrator/wicrawl-0.4a/plugins/aircrack-wep-cracking/aircrack-ng-0.9.1'
rm -f aireplay-ng airodump-ng airtun-ng aircrack-ng airdecap-ng packetforge-ng ivstools kstats makeivs aircrack-ng-opt-prof_gen aircrack-ng-opt aircrack-ng-opt-prof prof/*
make[2]: Leaving directory `/home/administrator/wicrawl-0.4a/plugins/aircrack-wep-cracking/aircrack-ng-0.9.1'
make[2]: Entering directory `/home/administrator/wicrawl-0.4a/plugins/cowpatty-wpa-psk-bruteforce/cowpatty'
rm -f md5.o sha1.o utils.o cowpatty.o genpmk.o cowpatty genpmk *~
make[2]: Leaving directory `/home/administrator/wicrawl-0.4a/plugins/cowpatty-wpa-psk-bruteforce/cowpatty'
make[2]: Entering directory `/home/administrator/wicrawl-0.4a/plugins/cowpatty-wpa-psk-bruteforce/cowpatty-fpga/picod'
rm -f *.o *.core picod picoc listflash
make[2]: Leaving directory `/home/administrator/wicrawl-0.4a/plugins/cowpatty-wpa-psk-bruteforce/cowpatty-fpga/picod'
make[2]: Entering directory `/home/administrator/wicrawl-0.4a/plugins/cowpatty-wpa-psk-bruteforce/cowpatty-fpga'
rm -f md5.o sha1.o utils.o cowpatty.o genpmk.o fpga.o picod/libpicod.o cowpatty genpmk *~
make[2]: Leaving directory `/home/administrator/wicrawl-0.4a/plugins/cowpatty-wpa-psk-bruteforce/cowpatty-fpga'
make[2]: Entering directory `/home/administrator/wicrawl-0.4a/plugins/pickupline/pul'
rm -f *.o pul
make[2]: Leaving directory `/home/administrator/wicrawl-0.4a/plugins/pickupline/pul'
make[2]: Entering directory `/home/administrator/wicrawl-0.4a/plugins/aircrack-wep-cracking/aircrack-ng-0.9.1'
gcc -g -W -Wall -O3 -D_FILE_OFFSET_BITS=64 -D_REVISION=`./evalrev` src/aircrack-ng.c src/crypto.c src/sha1-mmx.S src/common.c src/aircrack-ptw-lib.c -o aircrack-ng -lpthread
gcc -g -W -Wall -O3 -D_FILE_OFFSET_BITS=64 -D_REVISION=`./evalrev` src/airdecap-ng.c src/crypto.c src/common.c src/crc.c -o airdecap-ng
src/airdecap-ng.c: In function ‘main’:
src/airdecap-ng.c:637:30: warning: array subscript is above array bounds
gcc -g -W -Wall -O3 -D_FILE_OFFSET_BITS=64 -D_REVISION=`./evalrev` src/packetforge-ng.c src/common.c src/crc.c -o packetforge-ng
gcc -g -W -Wall -O3 -D_FILE_OFFSET_BITS=64 -D_REVISION=`./evalrev` src/ivstools.c src/common.c -o ivstools
gcc -g -W -Wall -O3 -D_FILE_OFFSET_BITS=64 -D_REVISION=`./evalrev` src/kstats.c -o kstats
gcc -g -W -Wall -O3 -D_FILE_OFFSET_BITS=64 -D_REVISION=`./evalrev` test/makeivs.c -o makeivs
test/makeivs.c: In function ‘main’:
test/makeivs.c:34:10: warning: array subscript is above array bounds
test/makeivs.c:34:10: warning: array subscript is above array bounds
test/makeivs.c:34:10: warning: array subscript is above array bounds
gcc -g -W -Wall -O3 -D_FILE_OFFSET_BITS=64 -D_REVISION=`./evalrev` src/aireplay-ng.c src/common.c src/crc.c -o aireplay-ng
src/aireplay-ng.c: In function ‘do_attack_test’:
src/aireplay-ng.c:4129:15: error: ‘INT_MAX’ undeclared (first use in this function)
src/aireplay-ng.c:4129:15: note: each undeclared identifier is reported only once for each function it appears in
make[2]: *** [aireplay-ng] Error 1
make[2]: Leaving directory `/home/administrator/wicrawl-0.4a/plugins/aircrack-wep-cracking/aircrack-ng-0.9.1'
make[1]: *** [wicrawl] Error 2
make[1]: Leaving directory `/home/administrator/wicrawl-0.4a/plugins'
make: *** [wicrawl] Error 2

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