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Shell_01/Makefile

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+
+#
+# Copyright (c) 2021 Guy Baconniere.
+#
+## How to use this Makefile
+#
+# cd git
+# mkdir ex01
+# cd ex01
+# make -f ../../Makefile ex01
+#
+
+marvin = "\"\\\?\$$\*\'MaRViN\'\*\$$\?\\\""
+
+clone:
+	@git clone git@vogsphere.42lausanne.ch:vogsphere/intra-uuid-a2e8ee6f-787d-4ee8-9eb4-359821770152-3701046 git
+
+ex01:
+	@rm -f print_groups.sh
+	@printf "#!/bin/sh\n" > print_groups.sh
+	@printf "id -Gn \$$FT_USER | tr ' ' ','\n" >> print_groups.sh
+	@chmod +x print_groups.sh
+	@FT_USER=daemon ./print_groups.sh | cat -e
+
+ex02:
+	@rm -f find_sh.sh file?.sh
+	@touch file1.sh file2.sh file3.sh
+	@printf "#!/bin/sh\n" > find_sh.sh
+	@printf "find . -type f -name '*.sh' -exec basename '{}' .sh \;\n" >> find_sh.sh
+	@chmod +x ./find_sh.sh
+	@./find_sh.sh | cat -e
+	@rm -f file?.sh
+
+ex03:
+	@rm -f count_files.sh file*
+	@touch file{1..40}
+	@printf "#!/bin/sh\n" > count_files.sh
+	@printf "find . \( -type f -o -type d \) | wc -l | tr -d ' '\n" >> count_files.sh
+	@chmod +x ./count_files.sh
+	@./count_files.sh | cat -e
+	@rm -f file*
+
+ex04:
+	@rm -f MAC.sh
+	@printf "#!/bin/sh\n" > MAC.sh
+	@printf "ifconfig | grep -oE 'ether .*' | cut -c7-23\n" >> MAC.sh
+	@chmod +x ./MAC.sh
+	@./MAC.sh | cat -e
+
+ex05:
+	@rm -f -- *MaRV*
+	@printf "42" > "$(marvin)"
+	@touch -t 10021221.00 "$(marvin)"
+	@chmod 0614 "$(marvin)"
+	@ls -lRA *MaRV* | cat -e
+
+ex06:
+	@rm -f skip.sh file*
+	@touch file{1..8}
+	@printf "#!/bin/sh\n" > skip.sh
+	@printf "ls -l | awk '{ if ((NR + 1) %% 2 == 0) print \$$0 }'\n" >> skip.sh
+	@chmod +x ./skip.sh
+	@./skip.sh | cat -e
+	@rm -f file*
+
+ex07:
+	@rm -f r_dwssap.sh
+	@printf "#!/bin/sh\n" > r_dwssap.sh
+	@printf "grep -v '^#' /etc/passwd | awk -F ':' '/^FT_LINE1/,/^FT_LINE2/ { n++; login=\$$1; rev=\"rev <<<\"login; rev | getline revlogin; close(rev); print ((n > 1) && ((n+1) %% 2 == 0))? revlogin:login }' | sort -rh | tr '\\\\n' ' ' | sed 's/ $$/./; s/ /, /g;'\n" >> r_dwssap.sh
+	@chmod +x ./r_dwssap.sh
+	@./r_dwssap.sh | cat -e
+
+ex08:
+	@rm -f add_chelou.sh
+	@printf "#!/bin/sh\n" > add_chelou.sh
+	@printf "echo Trop chelou de jouer avec tr et de jouer cet escape game.\n" >> add_chelou.sh
+	@chmod +x ./add_chelou.sh
+	@./add_chelou.sh | cat -e
+
+all: clone
+

Shell_01/git/ex01/print_groups.sh

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+#!/bin/sh
+id -Gn $FT_USER | tr ' ' ',' | tr -d '\n'

Shell_01/git/ex02/find_sh.sh

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+#!/bin/sh
+find . -type f -name '*.sh' -exec basename '{}' .sh \;

Shell_01/git/ex03/count_files.sh

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+#!/bin/sh
+find . \( -type f -o -type d \) | wc -l | tr -d ' '

Shell_01/git/ex04/MAC.sh

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+#!/bin/sh
+ifconfig | grep -oE 'ether .*' | cut -c7-23

Shell_01/git/ex05/"\?$*'MaRViN'*$?\"

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+42

Shell_01/git/ex06/skip.sh

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+#!/bin/sh
+ls -l | awk '{ if ((NR + 1) % 2 == 0) print $0 }'

Shell_01/git/ex07/r_dwssap.sh

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+#!/bin/sh
+grep -v "#" /etc/passwd | sed -n 'n;p' | awk -F ':' '{ print $1 }' | rev | sort -r | sed -n "${FT_LINE1-1},${FT_LINE2-42}p" | tr '\n' ' ' | sed 's/ $/./; s/ /, /g'

Shell_01/git_old/ex01/print_groups.sh

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+#!/bin/sh
+id -Gn $FT_USER | tr ' ' ',' | tr -d '\n'

Shell_01/git_old/ex02/find_sh.sh

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+#!/bin/sh
+find . -type f -name '*.sh' -exec basename '{}' .sh \;

Shell_01/git_old/ex03/count_files.sh

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+#!/bin/sh
+find . \( -type f -o -type d \) | wc -l | tr -d ' '

Shell_01/git_old/ex04/MAC.sh

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+#!/bin/sh
+ifconfig | grep -oE 'ether .*' | cut -c7-23

Shell_01/git_old/ex05/"\?$*'MaRViN'*$?\"

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+42

Shell_01/git_old/ex06/skip.sh

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+#!/bin/sh
+ls -l | awk '{ if ((NR + 1) % 2 == 0) print $0 }'

Shell_01/git_old/ex07/r_dwssap.sh

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+#!/bin/sh
+awk -F ':' '!/^#/ { n++; login=$1; rev="rev <<<"login; rev | getline revlogin; close(rev); print ((n > 1) && ((n+1) % 2 == 0))? revlogin:login }' /etc/passwd | sort -rh | tr '\n' ' ' | sed 's/ $/./; s/ /, /g;'